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ID 31967
本文ファイル
著者
Zhou, Bo
Xu, Min
Zhang, Yan
Xu, Gang
He, Cheng
Yang, L. X.
Chen, Fei
Xie, B. P.
Cui, Xiao-Yu
Arita, Masashi
Dai, X.
Feng, D. L.
NDC
物理学
抄録(英)
BaNi_2As_2, with a first-order phase transition around 131 K, is studied by the angle-resolved photoemission spectroscopy. The measured electronic structure is compared to the local-density approximation calculations, revealing similar large electronlike bands around M^^- and differences along Г^^- -X^^-. We further show that the electronic structure of BaNi_2As_2 is distinct from that of the sibling iron pnictides. Particularly, there is no signature of band folding, indicating no collinear spin-density-wave-related magnetic ordering. Moreover, across the strong first-order phase transition, the band shift exhibits a hysteresis, which is directly related to the significant lattice distortion in BaNi_2As_2.
掲載誌名
Physical Review B
83巻
3号
開始ページ
035110-1
終了ページ
035110-8
出版年月日
2011-01-13
出版者
The American Physical Society
ISSN
1098-0121
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2011 The American Physical Society
関連情報URL
部局名
放射光科学研究センター