Evidence of antiferromagnetic fluctuation in the unconventional superconductor lambda-(BETS)(2)GaCl4 by C-13 NMR

Kobayashi, T.; Kawamoto, A.

Physical Review B, 2017, 96(12), 125115-1-125115-5

Permalink : https://hdl.handle.net/2115/67326

このアイテムのアクセス数:808件（2026-10-17 06:24 集計）

ファイル	フォーマット	サイズ	閲覧回数	説明
PhysRevB96 125115	pdf	401 KB	707
Supplementary information	pdf	76.6 KB	382

アクセス権	open access
URI	https://hdl.handle.net/2115/67326
タイトル	Evidence of antiferromagnetic fluctuation in the unconventional superconductor lambda-(BETS)(2)GaCl4 by C-13 NMR
著者	著者名 Kobayashi, T.
著者	e-Rad_Researcher 60251691 著者名 Kawamoto, A.
言語	英語
発行日	2017-09-08
出版者	American Physical Society (APS)
収録物名	Physical Review B
巻(号)	96(12)
ページ	125115-1-125115-5
抄録	We performed C-13 NMR measurements on the unconventional organic superconductor lambda-(BETS)(2)GaCl4 to clarify its electronic properties in the paramagnetic state. We found that the spin-lattice relaxation rate divided by temperature 1/T1T shows Curie-like enhancement above 55 K that arises from an antiferromagnetic fluctuation. In addition, we found additional enhancement of 1/T1T below 10 K, where the Knight shift decreases and the linewidth of NMR spectra is broadened. The result could be understood by the magnetic fluctuation induced by the nesting of the Fermi surface. We discovered that lambda-(BETS)(2)GaCl4 salt inherently exhibits the two different types of magnetic fluctuations.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2017 American Physical Society
PISSN	2469-9950
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.96.125115