High-pressure phase diagram of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>NdFeAsO</mml:mi><mml:mrow><mml:mn>0.9</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">F</mml:mi><mml:mrow><mml:mn>0.1</mml:mn></mml:mrow></mml:msub></mml:math> : Disappearance of superconductivity on the verge of ferromagnetism from Nd moments
書誌事項
- タイトル別名
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- High-pressure phase diagram of NdFeAsO0.9F0.1: Disappearance of superconductivity on the verge of ferromagnetism from Nd moments
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We investigated transport and magnetic properties of single crystal NdFeAsO0.9F0.1 under hydrostatic pressures up to 50 GPa. The ambient pressure superconductivity at Tc ∼ 45.4 K was fully suppressed at Pc ∼ 21 GPa. Upon a further increase of pressure, ferromagnetism associated with the order of the rare-earth subsystem was induced at the border of superconductivity. Our finding is supported by the hysteresis in the magnetization M(H) loops and the strong increase in the field cooled data M(T ) toward low temperatures. We also show that the temperature evolution of the electrical resistivity as a function of pressure is consistent with a crossover from a Fermi liquid to non-Fermi liquid to Fermi liquid. The Hall measurements suggest that the multiband electronic structures have changed with pressure, which should also affect the resistivity behavior. These results give access to the high-pressure side of the superconducting phase diagram in the 1111 type of materials.
収録刊行物
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- Physical Review B
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Physical Review B 98 (9), 094504-1-094504-7, 2018-09-04
American Physical Society
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詳細情報 詳細情報について
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- CRID
- 1050845763868800128
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- NII論文ID
- 120006591352
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- NII書誌ID
- AA11187113
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- ISSN
- 24699969
- 24699950
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- HANDLE
- 10228/00007075
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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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