C-13 NMR study of the charge-ordered state near the superconducting transition in the organic superconductor β"-(BEDT-TTF)(4)[(H3O)Ga(C2O4)(3)]⋅C6H5NO2

Ihara, Y.; Jeong, M.; Mayaffre, H.; Berthier, C.; Horvatic, M.; Seki, H.; Kawamoto, A.

C-13 NMR study of the charge-ordered state near the superconducting transition in the organic superconductor β"-(BEDT-TTF)(4)[(H3O)Ga(C2O4)(3)]⋅C6H5NO2

Ihara, Y.; Jeong, M.; Mayaffre, H. et al.

Physical review B, 2014, 90(12), 121106

Permalink : https://hdl.handle.net/2115/57650

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アクセス権	open access
URI	https://hdl.handle.net/2115/57650
タイトル	C-13 NMR study of the charge-ordered state near the superconducting transition in the organic superconductor β"-(BEDT-TTF)(4)[(H3O)Ga(C2O4)(3)]⋅C6H5NO2
著者	Ihara, Y. ; Jeong, M. ; Mayaffre, H. ; Berthier, C. ; Horvatic, M. ; Seki, H. ; Kawamoto, A.
e-Rad_Researcher 80598491 著者名 Ihara, Y.
著者名 Jeong, M.
著者名 Mayaffre, H.
著者名 Berthier, C.
著者名 Horvatic, M.
著者名 Seki, H.
著者名 Kawamoto, A.
言語	英語
発行日	2014-09-22
出版者	American Physical Society
収録物名	Physical review B
巻(号)	90(12)
ページ	121106
抄録	The charge-ordered state in a quasi-two-dimensional organic superconductor β"-(BEDT-TTF)(4)[(H3O)Ga(C2O4) 3]⋅C6H5NO2 has been investigated using C-13 NMR spectroscopy in a high magnetic field. Enhanced resolution of the high-field spectrum allows us to estimate the site charges in the low-temperature charge-ordered state below 8.5 K. The observed strong increase in the charge imbalance suggests that superconductivity appears on the electronic state with a strong charge modulation. From the NMR intensity ratio of signals from the charge-rich and charge-poor sites, we discuss a possible charge pattern with threefold modulation, which could be stabilized by the effects of electron-electron correlations.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2014 American Physical Society
PISSN	1098-0121
EISSN	1550-235X
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.90.121106