Coincidence of magnetic and valence quantum critical points in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>CeRhIn</mml:mi><mml:mn>5</mml:mn></mml:msub></mml:math> under pressure
書誌事項
- タイトル別名
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- Coincidence of magnetic and valence quantum critical points in CeRhIn5 under pressure
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We present accurate electrical resistivity measurements along the two principle crystallographic axes of the pressure-induced heavy-fermion superconductor CeRhIn5 up to 5.63 GPa. For both directions, a valence crossover line is identified in the p-T plane and the extrapolation of this line to zero temperature coincides with the collapse of the magnetic ordering temperature. Furthermore, it is found that the p-T phase diagram of CeRhIn5 in the valence crossover region is very similar to that of CeCu2Si2. These results point to the essential role of Ce-4f electron delocalization in both destroying magnetic order and realizing superconductivity in CeRhIn5 under pressure.
収録刊行物
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- Physical Review B
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Physical Review B 96 (18), 184524-1-184524-5, 2017-11-27
American Physical Society
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詳細情報 詳細情報について
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- CRID
- 1050282813915414912
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- NII論文ID
- 120006596480
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- NII書誌ID
- AA11187113
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- ISSN
- 24699969
- 24699950
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- HANDLE
- 10228/00007107
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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