NMR studies of coexistence of superconductivity and CDW in LaPt2Si2

Taisuke Aoyama, Tetsuro Kubo, Haruki Matsuno, Hisashi Kotegawa, Hideki Tou, Akihiro Mitsuda, Yutaro Nagano, Nobutaka Araoka, Hirohumi Wada, Yuh Yamada

研究成果: ジャーナルへの寄稿会議記事査読

3 被引用数 (Scopus)

抄録

We carried out 139La-, 29Si- and 195Pt-NMR measurements of LaPt2Si2 which shows coexistence of a superconducting state and a charge density wave (CDW) state. Slight gradual decreasing ∼0.006% are observed in Knight shifts of 139La and 29Si-line C from 200K to 5K. The decreasing are much less than the previous 195Pt-NMR spectra PeakD's shifts reported in T. Kubo et al, so the decreasing can be expected following 195Pt-Knight shift decreasing. LaPt2Si2 has two types of Pt-sites: Pt(1)2a(Wycoff position) and Pt(2)2c. By carrying out single crystalline 195Pt-NMR, the site assignments of 195Pt-NMR spectra to each respective Pt sites are succeeded for both H||a and ||c. Associating for 1/T1T results for polycrystalline powder reported by T. Kubo et al, Pt(1)-site may contributes to the CDW order below T∗. It is necessary to measure the temperature dependences of line1's 1/T1T by using single crystalline LaPt2Si2.

本文言語英語
論文番号062002
ジャーナルJournal of Physics: Conference Series
807
6
DOI
出版ステータス出版済み - 4月 6 2017
イベント18th International Conference on Strongly Correlated Electron Systems, SCES 2016 - Hangzhou, 中国
継続期間: 5月 9 20165月 13 2016

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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