Pressure driven collapse of the magnetism in the Kondo insulator UNiSn

Physical Review 71 巻 020402- 頁 2005 発行
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タイトル ( eng )
Pressure driven collapse of the magnetism in the Kondo insulator UNiSn
作成者
Barla A.
Sanchez J.P.
Aksungur A.
Lengsdorf R.
Plessel J.
Doyle B.P.
Ruffer R.
abd-Elmeguid M.M.
収録物名
Physical Review
71
開始ページ 020402
抄録
The effect of pressure on the electronic and magnetic properties of the antiferromagnetic (TN~43 K) narrow gap semiconductor UNiSn has been investigated by 119Sn Mössbauer spectroscopy and nuclear forward scattering of synchrotron radiation, electrical resistance, and x-ray diffraction. We show that the decrease of the semiconducting gap which leads to a metallic state at p~9 GPa is associated with an enhancement of TN. At higher pressures, both TN and the transferred magnetic hyperfine field decrease, with a collapse of magnetism at ~18.5 GPa. The results are explained by a volume-dependent competition between indirect Ruderman-Kittel-Kasuya-Yosida interaction and the 5f-ligand hybridization.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2005
権利情報
Copyright (c) 2006 American Physical Society
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1098-0121
[NCID] AA11187113
[DOI] 10.1103/PhysRevB.71.020402
[DOI] http://dx.doi.org/10.1103/PhysRevB.71.020402 ~の異版である