ESR Properties of κ-Type Organic Superconductors Based on BEDT-TTF
ESR Properties of κ-Type Organic Superconductors Based on BEDT-TTF
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基于BEDT-TTF的κ型有机超导体的ESR特性
DOI:
10.1143/jpsj.63.4110
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发表时间:
1994
影响因子:
1.7
通讯作者:
Takehiko Mori
中科院分区:
文献类型:
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作者:
Toshikazu Nakamura;Tomoko Nobutoki;Toshihiro Takahashi;G. Saito;H. Mori;Takehiko Mori
A systematic investigation of electron spin resonance (ESR) properties, the spin susceptibility (χ spin ), peak-to-peak linewidth (Δ H pp ) and g -value, of κ-type BEDT-TTF superconductors has been carried out in order to clarify their electronic structures in the normal state. κ-(BEDT-TTF) 2 Cu[N(CN) 2 ]Br (Space group: Pnma) and κ'-(BEDT-TTF) 2 Cu 2 (CN) 3 (P2 1 /c) have almost temperature independent g -values along all the crystal axes. On the other hand, the salts with space group of P2 1 , κ-(BEDT-TTF) 2 Cu(NCS) 2 , κ-(BEDT-TTF) 2 Cu(CN)[N(CN) 2 ] and κ-(BEDT-TTF) 2 Ag(CN) 2 ·H 2 O, were found to show an anomalous enhancement of g -shift below about 130 K when the field was applied along the b axis in the two-dimensional conducting plane. Simultaneously, a rapid broadening of the linewidth has been observed. We discuss possible mechanisms of the anomalous temperature dependence of the g -value for the compounds of the P2 1 space group.
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
小澤宏彬;岡野修樹;小林拓矢;道村真司;谷口弘三;佐藤一彦
通讯作者:
佐藤一彦