Evolution of Paramagnetic Quasiparticle Excitations Emerged in the High-Field Superconducting Phase of CeCoIn5

Kumagai, K.; Shishido, H.; Shibauchi, T. et al.

Physical Review Letters, 2011, 106(13), 137004

Permalink : https://hdl.handle.net/2115/45274

このアイテムのアクセス数:1,087件（2026-10-07 03:17 集計）

ファイル	フォーマット	サイズ	閲覧回数	説明
PRL106-13_137004	pdf	1.09 MB	1,340

アクセス権	open access
URI	https://hdl.handle.net/2115/45274
タイトル	Evolution of Paramagnetic Quasiparticle Excitations Emerged in the High-Field Superconducting Phase of CeCoIn5
著者	Kumagai, K. ; Shishido, H. ; Shibauchi, T. ; Matsuda, Y.
著者名 Kumagai, K.
著者名 Shishido, H.
著者名 Shibauchi, T.
著者名 Matsuda, Y.
言語	英語
発行日	2011-04-01
出版者	American Physical Society
収録物名	Physical Review Letters
巻(号)	106(13)
ページ	137004
抄録	We present 115In NMR measurements in a novel thermodynamic phase of CeCoIn5 in a high magnetic field, where exotic superconductivity exists with the incommensurate spin-density wave order. We show that the NMR spectra in this phase provide direct evidence for the emergence of the spatially distributed normal quasiparticle regions. The quantitative analysis for the field evolution of the paramagnetic magnetization and newly emerged low-energy quasiparticle density of states is consistent with the nodal plane formation, which is characterized by an order parameter in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. The NMR spectra also suggest that the spatially uniform spin-density wave is induced in the FFLO phase.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2011 American Physical Society
PISSN	0031-9007
関連情報	PMID 21517416
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevLett.106.137004