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- Title
Direct Observation and Interpretation of Carrier Dynamics of Molecular Magnetic Superconductors.
- Authors
Naito, T.; Matsuo, S.; Inabe, T.; Toda, Y.
- Abstract
The temperature-dependent time-resolved reflectance spectra of the organic superconductors (OSs) κ- and λ-(BETS)MCl (M=Fe, Ga) and κ-(ET)Cu[N(CN)]Br are reported. The π electrons of the organic molecules (BETS or ET) are responsible for the electrical conduction in these salts, while only the Fe-containing salts have localized spins on the d electrons in the Fe atoms ( S=5/2) with π- d interaction. Analysis of the spectra provided the relaxation time τ of the carriers, as well as information concerning the number of carriers at the Fermi energy N( E). The carrier dynamics were classified in terms of high- T and low- T OSs. In these salts, the results indicate that (1) the electron-phonon interaction is important in the occurrence and stability of the superconducting phase, and (2) electron correlation can be related to the enhancement of T.
- Subjects
MAGNETIC superconductors; ORGANIC superconductors; ELECTRONS; MOLECULAR shapes; ELECTRIC conductivity; ELECTRON relaxation time; ELECTRON configuration
- Publication
Journal of Superconductivity & Novel Magnetism, 2013, Vol 26, Issue 5, p1679
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-012-2007-1