Speaker
Shin-ichi Kimura
(UVSOR Facility, Institute for Molecular Science)
Description
Takuya Iizuka, Takafumi Mizuno, Shin-ichi Kimura
UVSOR Facility, Institute for Molecular Science, and School of Physical Sciences, The Graduate University for Advanced Studies, Okazaki 444-8585, Japan
Byeong Hun Min, Yong-Seung Kwon
Department of Physics, Sungkyunkwan University, Suwon 440-746, South Korea
We report the pressure-dependent optical conductivity spectra of a heavy fermion (HF) compound CeIn3 below the Neel temperature of 10 K to investigate the existence of the HF state in the antiferromagnetic (AFM) phase. The peak due to the interband transition in the hybridization gap between the conduction band and nearly localized 4f states (c-f hybridization) appears at the photon energy of about 20 meV not only in the HF regime but also in the AFM regime. Both the energy and intensity of the c-f hybridization peak continuously increase with the application of pressure from the AFM to the HF regime. This result suggests that the c-f hybridization, as well as the heavy fermions, exists even in the AFM phase of CeIn3.
Primary author
Shin-ichi Kimura
(UVSOR Facility, Institute for Molecular Science)
