Evolution of quasiparticle properties in UGe(2) with hydrostatic pressure studied via the de Haas-van Alphen effect.
Evolution of quasiparticle properties in UGe(2) with hydrostatic pressure studied via the de Haas-van Alphen effect.
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DOI：
10.1103/physrevlett.87.166401
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发表时间：
2001-09
影响因子：
8.6
通讯作者：
T. Terashima;T. Matsumoto;C. Terakura;S. Uji;N. Kimura;M. Endo;T. Komatsubara;H. Aoki
中科院分区：
文献类型：
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作者：
T. Terashima;T. Matsumoto;C. Terakura;S. Uji;N. Kimura;M. Endo;T. Komatsubara;H. Aoki
本文报道了在17.6kbar的流体静压下UGe（2）中的de Haas-van Alphen效应的测量结果，超过了铁磁性抑制的临界压力P（c）。发现在P（c）上费米面发生不连续的变化。在P（c）附近，铁磁侧和顺磁侧的有效质量都大大增加（约为40 m（e））。
We report measurements of the de Haas-van Alphen effect in UGe (2) under hydrostatic pressures up to 17.6 kbar, exceeding the critical pressure P(c) for the suppression of ferromagnetism. A discontinuous change of the Fermi surface is found to occur across P(c). Substantially enhanced effective masses (approximately 40m(e)) are found near P(c) on both the ferromagnetic and the paramagnetic sides.