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19 April 2024 |
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Observation of a new excitation in the mixed-valent state of YbInCu_4 | | S. R. Garner
; Y. W. Rodriguez
; Z. Schlesinger
; B. Bucher
; Z. Fisk
; J. L. Sarrao
; | | Date: |
29 Oct 1999 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Affiliation: | U.C., Santa Cruz), B. Bucher (ITR), Z. Fisk (NHMFL/FSU), J. L. Sarrao (LANL | | Abstract: | Infrared measurements are used to obtain conductivity as a function of temperature and frequency in YbInCu_4, which exhibits an isostructural transition to a mixed-valent state at T_v simeq 42 K. In addition to a gradual loss of spectral weight with decreasing temperature extending up to 1.5 eV, sharp resonances appear in the mixed-valent state at 0 and 0.25 eV . These features may be key to understanding both YbInCu_4 and the nature of the mixed-valent Kondo state. | | Source: | arXiv, cond-mat/9910485 | | Services: | Forum | Review | PDF | Favorites | |
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