Microscopic coexistence of superconductivity and charge order in the organic superconductor β"-(BEDT-TTF)4[(H3O)Ga(C2O4)3]•C6H5NO2

被引：7
|
作者：
Ihara, Y. [1 ]
Moribe, K. [1 ]
Fukuoka, S. [1 ]
Kawamoto, A. [1 ]
机构：
[1] Hokkaido Univ, Grad Sch Sci, Dept Phys, Sapporo, Hokkaido 0600810, Japan
来源：
PHYSICAL REVIEW B | 2019年 / 100卷 / 06期
关键词：
MOLECULAR SUPERCONDUCTOR; STATE;
D O I：
10.1103/PhysRevB.100.060505
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An electron paramagnetic resonance study for an organic superconductor beta"-(BEDT-TTF)(4)[(H3O)Ga(C2O4)(3)]center dot C6H5NO2 reveals that superconductivity coexists uniformly with the charge ordered state in one material. In the charge ordered state, the interplane spin exchange is gapped, while the in-plane conductivity is not significantly modified. This anisotropic behavior is explained by an exotic charge ordered state, in which molecular-site-selective carrier localization coexists with conducting carriers on other molecules. The relationship between superconductivity and this conductive charge ordered state is investigated.
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页数：5
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