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ID 19295
本文ファイル
著者
So, J.-Y.
Oh, Seung June
Park, Junghwan Gahb
Adroja, D. T.
McEwen, Keith A.
抄録(英)
The formation of pseudogaps in CeNiSn and CeRhSb has been a puzzle for more than a decade. In order to uncover the mystery, we have undertaken inelastic neutron scattering studies of CeNi0.85Cu0.15Sn and CeRh1-xPdxSb with x=0.1 and 0.2. From this study, we have succeeded in finding two observable crystal field excitations experimentally. Our subsequent analysis using a crystalline electric field (CEF) Hamiltonian reveals that the experimental observation can be explained by two separate solutions of the CEF Hamiltonian with different ground state wave functions. Interestingly enough, these two solutions are the same ones favored by two independent theoretical models. We have made further analysis and calculations using a superposition model in order to distinguish between these two solutions and, furthermore, discuss our findings with respect to the currently available theories. Our new results shed light on the nature of the gap formation of CeNiSn and CeRhSb.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
71巻
21号
開始ページ
214441-1
終了ページ
214441-7
出版年月日
2005-06-30
出版者
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) 2005 The American Physical Society.
関連情報URL
部局名
先端物質科学研究科