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Low Energy Electrodynamics in Solids 2012

22–27 Jul 2012
Embassy Suites Napa Valley
US/Pacific timezone

Session

Poster Session 2

24 Jul 2012, 20:00
Chardonnay Ballroom (Embassy Suites Napa Valley)

Chardonnay Ballroom

Embassy Suites Napa Valley

1075 California Boulevard, Napa, California, United States 94559

Description

High-Tc Cuprates, Pnictides, Photo-induced, Nanoscale spectroscopies, Plasmonics, Metamaterials, New techniques

Presentation materials

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  1. 97. Anisotropic electron-phonon coupling in MgB2 by ARPES
    Bart Ludbrook (Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada)
    24/07/2012, 20:00
    High-Tc Cuprates
    Student Poster Competition
    B. M. Ludbrook, Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada C. N. Veenstra, Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada G. Levy, Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada N. D. Zhigadlo,...
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  2. 67. ARPES evidence of translational symmetry breaking in superconducting Fe(Te1-xSex)
    Marco Grioni, P.-H. Lin (ICMP-EPFL)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    L. Moreschini[1], P.-H. Lin[2,3], A. Bostwick[1], E. Rotenberg[1], E. Giannini[4], R.Viennois[4], K.W. Yeh[5], M.K. Wu[5], and M. Grioni[2] 1 Advanced Light Source, LBNL, Berkeley, CA 94720 (USA) 2 Institute of Condensed Matter Physics, EPFL, CH-1015 Lausanne (Switzerland) 3 LPS, Université de Paris-sud, F-91140 Orsay (France) 4 DPMC, Université de Genève, CH-1211 Genève (Switzerland)...
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  3. 103. Charge density wave formation near band degeneracies
    Hans-Martin Eiter (Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany)
    24/07/2012, 20:00
    Correlated Physics
    Student Poster Competition
    H.-M. Eiter (1), M. Lavagnini(1), A. Baum (1), R. Hackl (1), E.A. Nowadnick (2)(3), A.F. Kemper (2)(4), T.P. Devereaux (2)(4), J.-H. Chu (2)(4), J. G. Analytis (2)(4), I.R. Fisher (2)(4), and L. Degiorgi (5) (1) Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany (2) Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator...
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  4. 45. Charge transport in semiconductor nanostructures investigated by terahertz spectroscopy
    Hynek Nemec (Institute of Physics AS CR, Na Slovance 2, 18221 Praha, Czech Republic)
    24/07/2012, 20:00
    Photoinduced Studies
    Poster
    H. Němec, Z. Mics, and P. Kužel Institute of Physics AS CR, Na Slovance 2, 18221 Praha, Czech Republic The optical pump—THz probe spectroscopy provides a sub-picosecond time resolution and a convenient access to the spectral part of the conductivity spectra where the responses of free and localized charge carriers usually fundamentally differ. We developed a microscopic model of...
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  5. 75. Coherent broadband THz spectrometer using photomixers for accurate determination of complex dielectric function
    Komalavalli Thirunavukkuarasu (II. Physikalisches Institut, Universität zu Köln)
    24/07/2012, 20:00
    New Techniques
    Poster
    Roggenbuck, Axel [1,2] Langenbach, Malte [1] Schmitz, Holger [1] Vidal, Ernesto [1] Deninger, Anselm [2] Cámara Mayorga, Iván [3] Güsten, Rolf [3] Hemberger, Joachim [1] Grüninger, Markus [1] Affiliations: [1] : II. Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany, [2] : TOPTICA Photonics AG, Lochhamer Schlag 19, D-82166 Gräfelfing,...
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  6. 77. Coherent intersubband polarization switching in a semiconductor quantum well using terahertz pulses
    Martin Wagner (Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany)
    24/07/2012, 20:00
    Photoinduced Studies
    Poster
    M. Wagner(1), M. Helm(1), M. S. Sherwin(2), D. Stehr(1) 1-Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, P.O. box 510119, 01314 Dresden, Germany 2-Physics Department, University of California Santa Barbara, California 93106 Intersubband transitions in semiconductor quantum wells with their large dipole moments and their polarization decay...
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  7. 38. Controlling incandescence using Metamaterials
    Xianliang Liu (Boston College)
    24/07/2012, 20:00
    Plasmonics / Metamaterials
    Poster
    Xianliang Liu, Willie J. Padilla Boston College Talmage Tyler, Nan Marie Jokerst Duke University Tatiana Starr, Anthony F. Starr SensorMetrix, Inc. A blackbody is an idealized object that absorbs all radiation incidents upon it and reradiates energy solely determined by its temperature, as described by Planck’s law. The phenomenon that material emits light at high temperature is also...
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  8. 18. d-wave quasiparticles and the origin of vortex viscosity in cuprates
    David Broun (Simon Fraser University)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    David Broun, Simon Fraser University Xiaoqing Zhou, Simon Fraser University Wendell Huttema, Simon Fraser University Patrick Turner, Simon Fraser University Ruixing Liang, University of British Columbia Doug Bonn, University of British Columbia Walter Hardy, University of British Columbia The frictional force experienced by a quantized flux line moving in a conventional superconductor...
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  9. 52. Dispersive high-energy spin excitations in iron pnictide superconductors investigated with resonant inelastic x-ray scattering
    Thorsten Schmitt (Paul Scherrer Institut)
    24/07/2012, 20:00
    Pnictides
    Poster
    K. J. Zhou1, Y. B. Huang2,1, C. Monney1, N. L. Wang2, P. C. Dai2,3,4, X. Dai2, J. Van den Brink5, H. Ding2, and T. Schmitt1 1Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland 2Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 3Department of Physics and Astronomy, The University of Tennessee,...
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  10. 39. Evidence for a Peierls phase-transition in a three-dimensionnal multiple charge-density-waves solid.
    Barbara Mansart (Ecole Polytechnique Fédérale de Lausanne)
    24/07/2012, 20:00
    Photoinduced Studies
    Poster
    B. Mansart Laboratory for Ultrafast Microscopy and Electron Scattering, ICMP, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland and Laboratory of Ultrafast Spectroscopy, ISIC, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland M. Cottet Laboratory for Ultrafast Microscopy and Electron Scattering, ICMP, Ecole Polytechnique Fédérale de...
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  11. 98. High speed terahertz modulation from metamaterials with embedded high electron mobility transistors
    David Shrekenhamer (Boston College)
    24/07/2012, 20:00
    Plasmonics / Metamaterials
    Student Poster Competition
    David Shrekenhamer, Department of Physics, Boston College, USA Saroj Rout, NanoLab, Electrical and Computer Engineering, Tufts University, USA Andrew Strikwerda, Department of Physics, Boston University, USA Chris Bingham, Department of Physics, Boston College, USA Richard Averitt, Department of Physics, Boston University, USA Sameer Sonkusale, NanoLab, Electrical and Computer...
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  12. 61. Infrared Phonon Fingerprinting of Nanocrystals through Broadband Near-Field Spectroscopy
    Alex McLeod (University of California San Diego)
    24/07/2012, 20:00
    Nanoscale Spectroscopies
    Poster
    Alexander S. McLeod - University of California San Diego Gerardo Dominguez - California State University San Marcos Zack Gainsforth - University of California Berkeley Space Sciences Laboratory Priscilla Kelly - University of California San Diego Mark Thiemens - University of California San Diego D. N. Basov - University of California San Diego Near-field infrared spectroscopy has...
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  13. 40. Intense terahertz pulse-induced breaking of BCS superconducting phase in NbN
    Ryusuke Matsunaga (Department of Physics, School of Science, The University of Tokyo)
    24/07/2012, 20:00
    Photoinduced Studies
    Poster
    Ryusuke Matsunaga^1 and Ryo Shimano^1 1 Department of Physics, School of Science, The University of Tokyo We studied ultrafast dynamics of a nonequilibrium BCS state in superconductor NbN by terahertz pump-terahertz probe spectroscopy. Intense THz pulse excitation induces the suppression of superconductivity within 2 ps due to direct photo-injection of high-density quasiparticles. The...
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  14. 16. Nanoscale investigation of multilayer, dispersive mirrors damage by spectroscopic near-field microscopy
    Sergiu Amarie (Max Planck Institute of Quantum Optics)
    24/07/2012, 20:00
    Nanoscale Spectroscopies
    Poster
    S. Amarie(1), I. Ivanov(1), V. Pervak(2), F. Keilmann(1) and A. Apolonskiy(1,2) 1) Max Planck Institute of Quantum Optics, Garching, Germany. 2) Ludwig-Maximilians-University Munich, Garching, Germany. Multilayer dielectric mirrors are the limiting factor to scale up and simplify high-power femtosecond laser systems towards shorter pulse durations and higher average or peak powers....
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  15. 59. Nanoscale layering of antiferromagnetic and superconducting phases in Rb2Fe4Se5
    Aliaksei Charnukha (Max Planck Institute for Solid State research)
    24/07/2012, 20:00
    Nanoscale Spectroscopies
    Poster
    A. Charnukha,1 A. Cvitkovic,2 T. Prokscha,3 D. Pr¨opper,1 N. Ocelic,2 A. Suter,3 Z. Salman,3 E. Morenzoni,3 J. Deisenhofer,4 V. Tsurkan,4, 5 A. Loidl,4 B. Keimer,1 and A. V. Boris1 1Max-Planck-Institut f¨ur Festk¨orperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany 2Neaspec GmbH, D-82152 Martinsried (Munich), Germany 3Laboratory for Muon Spin Spectroscopy, Paul Scherrer...
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  16. 30. Non-equilibrium superconductivity in light-stimulated YBa2Cu3Ox
    Cassandra Hunt (University of Illinois at Urbana-Champaign;Max Planck Department for Structural Dynamics)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    C. R. Hunt (1,2), D. Nicoletti (1), S. Kaiser (1), W. Hu (1), I. Gierz (1), H. Liu (1), M. Le Tacon (3), T. Loew (3), D. Haug (3), B. Keimer (3), A. Cavalleri (1,4) (1) Max Planck Department for Structural Dynamics, University of Hamburg, Center for Free-Electron Laser Science, Hamburg, Germany (2) Department of Physics and the Frederick Seitz Material Research Laboratory, University of...
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  17. 56. Optical and Raman spectrum in the magnetic state of iron pnictides
    Belen Valenzuela (Instituto de Ciencia de Materiales de Madrid ICMM-CSIC)
    24/07/2012, 20:00
    Pnictides
    Poster
    Noel García, ICMM-CSIC Madrid (Spain) M.J. Calderón, ICMM-CSIC Madrid (Spain) E. Bascones, ICMM-CSIC Madrid (Spain) G. León, ICMM-CSIC Madrid (Spain) E. Cappelluti, ISC, INFM-CNR Rome (Italy) and ICMM-CSIC Madrid (Spain) S. Ciuchi, CNISM Universita dell'Aquila, L'Aquila (Italy) and ISC, INFM-CNR, Rome (Italy) One of the big puzzles in iron-pnictides is to understand the unexpected...
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  18. 109. Optical properties of mechanically-exfoliated Bi2Sr2CaCu2O8
    Luke Sandilands (University of Toronto)
    24/07/2012, 20:00
    High-Tc Cuprates
    Student Poster Competition
    Luke Sandilands (University of Toronto, Canada) Viktoriya Baydina (University of Toronto, Canada) Alexander Su (University of Toronto, Canada) Anjan Reijnders (University of Toronto, Canada) Tor Pedersen (Canadian Light Source, Canada) Ferenc Borondics (Canadian Light Source, Canada) Genda Gu (Brookhaven National Laboratory, USA) Shimpei Ono (University of Tokyo, Japan) Yoichi Ando...
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  19. 15. Optical Study of the Pseudogap State in YBa2(Cu1-xZnx)3O7-δ
    Ece UYKUR (Department of Physics, Graduate School of Science, Osaka University)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    Ece UYKUR Department of Physics, Graduate School of Science, Osaka University, Osaka 560-0043, JAPAN Takahiko MASUI Department of Physics, Graduate School of Science, Osaka University, Osaka 560-0043, JAPAN Kiyohisa TANAKA Department of Physics, Graduate School of Science, Osaka University, Osaka 560-0043, JAPAN Shigeki MIYASAKA Department of Physics, Graduate School of...
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  20. 27. Persistent high-energy spin excitations in RIXS spectra of optimally doped Bi-2212
    Marco Grioni (ICMP-EPFL)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    M. Guarise, B. Dalla Piazza, H. Ronnow, H. Berger, M. Grioni Institute of Condensed Matter Physics, EPFL, CH-1015 Lausanne (Switzerland) We have exploited high-resolution resonant inelastic x-ray scattering (RIXS) at the Cu L3 edge to measure the full spectrum of spin excitations in Bi-2212. We find that the magnon dispersion and spectral line shape of the insulating Y-substituted parent...
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  21. 63. Precursor superconducting phase at temperatures as high as 180 K in superconducting cuprate crystals from infrared spectroscopy
    Adam Dubroka (Masaryk University)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    A. Dubroka1,2, M. Rössle1, K.W. Kim1, V. K. Malik1, D. Munzar2, D. N. Basov3, A. A. Schafgans3, S. J. Moon3, C. T. Lin4, D. Haug4, V. Hinkov4, B. Keimer4, Th. Wolf5, J. G. Storey6, J. L. Tallon6, and C. Bernhard1 1.) Physics Department and Fribourg Center for Nanomaterials (FriMat), University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland 2.) Institute of Condensed Matter...
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  22. 108. Raman response in density wave materials
    Elizabeth Nowadnick (Stanford University)
    24/07/2012, 20:00
    Pnictides
    Student Poster Competition
    E.A. Nowadnick, A.F. Kemper, B. Moritz (Stanford and SLAC), R. Hackl (Walther Meissner Institut), T.P. Devereaux (Stanford and SLAC) Raman spectroscopy, which uses different incoming and outgoing light polarizations to measure different areas of the Brillouin zone, allows researchers to probe the nature of charge and spin density wave gaps. We present calculations of the Raman response for...
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  23. 20. Single-layer terahertz metamaterials with bulk optical constant
    Wenchen Chen (Boston College)
    24/07/2012, 20:00
    Plasmonics / Metamaterials
    Poster
    W.-C. Chen1, A. Totachawattana1, K. Fan2, J. L. Ponsetto1, A. C. Strikwerda3, X. Zhang2, R. D. Averitt3, and W. J. Padilla1 1Department of Physics, Boston College, 140 Commonwealth Ave., Chestnut Hill, Massachusetts 02467, USA 2Department of Mechanical Engineering, Boston University, 15 Saint Mary's St., Brookline, Massachusetts 02446, US 3Department of Physics, Boston University, 590...
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  24. 57. Single-layer terahertz metamaterials with bulk optical constant
    Wenchen Chen (Boston College)
    24/07/2012, 20:00
    Plasmonics / Metamaterials
    Poster
    W.-C. Chen1, A. Totachawattana1, K. Fan2, J. L. Ponsetto1, A. C. Strikwerda3, X. Zhang2, R. D. Averitt3, and W. J. Padilla1 1Department of Physics, Boston College, 140 Commonwealth Ave., Chestnut Hill, Massachusetts 02467, USA 2Department of Mechanical Engineering, Boston University, 15 Saint Mary's St., Brookline, Massachusetts 02446, US 3Department of Physics, Boston University, 590...
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  25. 33. Spectroscopic near-field microscopy of biominerals in the phonon region
    Fritz Keilmann (Max Planck Institute of Quantum Optics, Garching, Germany)
    24/07/2012, 20:00
    Nanoscale Spectroscopies
    Poster
    Sergiu Amarie Fritz Keilmann Max Planck Institute of Quantum Optics, Garching, Germany Spectroscopic near-field imaging is enabled by combining a coherent mid-infrared continuum source with 20nm-resolving tip-scattering near-field microscopy (s-SNOM). Broadband amplitude and phase spectra are acquired together with topographical height at every pixel while scanning. As a first...
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  26. 54. Superconducting coherence along c-axis in the stripe phase of high-Tc cuprates
    Kiyohisa TANAKA (Osaka University)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    K. Tanaka, Y. Sakai, T. Miyake, S. Miyazaki, S. Miyasaka and S. Tajima, Department of Physics, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan M. Tonouchi Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan T. Sasagawa Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,...
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  27. 13. Terahertz excitations in the 1D Ising chain quantum magnet CoNb2O6
    Christopher M. Morris (Johns Hopkins University)
    24/07/2012, 20:00
    Correlated Physics
    Poster
    Christopher M. Morris, Rolando Valdés Aguilar, Seyed Koopayeh, Colin L. Broholm, N. Peter Armitage The Institute for Quantum Matter, Department of Physics & Astronomy, The Johns Hopkins University, Baltimore, MD 21218 The one-dimensional magnet CoNb2O6 was recently demonstrated to be an excellent realization of a one-dimensional quantum Ising spin chain. It has been shown to undergo a...
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  28. 148. THz Induced Breakdown of Superconductivity in NbN
    Xiaoxiang Xi (Brookhaven National Laboratory)
    24/07/2012, 20:00
    Photoinduced Studies
    Poster
    X. Xi X.-J. Wang Y. Shen J.B. Murphy X. Yang and G.L. Carr Photon Sciences, Brookhaven National Laboratory We have begun an experimental study of superconductivity breakdown behavior in a thin NbN film when exposed to a single, strong-field THz pulse. By limiting the THz spectral content to below-gap frequencies, the breakdown is assumed to take place when the induced current density...
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  29. 154. Towards understanding the c-axis infrared response of underdoped cuprate superconductors
    Dominik Munzar (Masaryk University)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    Dominik Munzar and Jiri Vasatko, Department of Condensed Matter Physics, Faculty of Science, and Central European Institute of Technology, Masaryk University, Kotlarska 2, 611 37 Brno, Czech Republic The c-axis infrared (IR) conductivity of underdoped high-Tc cuprate superconductors reveals a pronounced pseudogap (PG) and, for materials with two CuO2 planes per unit cell, signatures of...
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  30. 37. Tuning the plasmonic regime in high temperature superconductor metamaterials
    Odeta Limaj (Department of Physics, University of Rome La Sapienza)
    24/07/2012, 20:00
    Plasmonics / Metamaterials
    Poster
    Giliberti, Valeria; Department of Physics, University of Rome La Sapienza, Rome (Italy) Ortolani, Michele; Department of Physics, University of Rome La Sapienza, Rome (Italy) Di Gaspare, Alessandra; CNR-Istituto di Fotonica e Nanotecnologie, Rome (Italy) De Marzi, Gianluca;ENEA:Fusion-Superconductivity, Frascati (Italy) Lupi, Stefano; Department of Physics, University of Rome La Sapienza,...
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  31. 106. Ultrafast conductivity dynamics in the colossal magnetoresistance La1-xCaxMnO3 thin films
    Jingdi Zhang (Boston University)
    24/07/2012, 20:00
    Photoinduced Studies
    Student Poster Competition
    J. Zhang, Boston University R. D. Averitt, Boston University X. Tan, University of Science and Technology of China W. Wu, University of Science and Technology of China La1-xCaxMnO3 is a classic colossal magnetoresistance (CMR) material where the conductivity displays a marked sensitivity to an external magnetic field for reasons that are still not fully understood. The underlying rich...
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  32. 160. Ultrafast optical study of the electron doped cuprate NCCO
    James Hinton (UC Berkeley, LBNL)
    24/07/2012, 20:00
    Poster
    James Hinton, Jake Koralek (LBNL, UC Berkeley) Guichan Yu, Mun Chan (University of Minnesota) Neven Barisic (University of Minnesota, University of Stuttgart) Martin Greven (University of Minnesota) Joe Orenstein (LBNL, UC Berkeley) We employed time resolved reflectivity (TRR) and transieng grating spectroscopy (TGS) to study the electron doped cuprate superconductor Nd(2-x)Ce(x)CuO4...
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  33. 70. Unique Automatic Beamsplitter Exchange Unit for a Research Vacuum FT-IR Spectrometer
    Michael Joerger (Bruker Optik GmbH, Rudolf-Plank-Strasse 27, 76275 Ettlingen, Germany)
    24/07/2012, 20:00
    New Techniques
    Poster
    Michael Joerger Guenter Zachmann Since the introduction of FT-IR spectroscopy, it is very well accepted by the research community that a spectrometer based on a vacuum optics bench provides IR spectra which are free of residual H2O- and CO2- absorption bands. Such residual absorptions of the laboratory room air are typically visible under purge conditions and may mask weak spectral...
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  34. 69. Vacuum FT-IR spectrometer: Research Tool at Synchrotron Infrared Beamlines
    Michael Joerger (Bruker Optik GmbH, Rudolf-Plank-Strasse 27, 76275 Ettlingen, Germany)
    24/07/2012, 20:00
    New Techniques
    Poster
    Michael Joerger Guenter Zachmann In the 70s of the last century first attempts to make use of the advantage of bright and highly collimated e-synchrotron radiation not only in the short wavelength range (UV, X-Ray) but also in the long wavelength range (FIR, typically 400 to 10cm-1) failed. The theoretically expected advantage of the synchrotron radiation as bright but expensive IR sources...
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  35. 161. Vortex-State Electrodynamics in Superconducting Thin Films Studied by Far-Infrared Spectroscopy
    Xiaoxiang Xi (Brookhaven National Lab)
    24/07/2012, 20:00
    High-Tc Cuprates
    Poster
    Xiaoxiang Xi,a,b) G. L. Carr,a) J.-H. Park,c) D. Graf c) and D. B. Tanner b) a) Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973 b) Department of Physics, University of Florida, Gainesville, FL 32611 c) National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310 In a type-II superconductor, a magnetic field above the lower critical field...
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