Growth and Unique Electronic States under Magnetic Field and Pressure in Rare Earth and Actinide Compounds
Growth and Unique Electronic States under Magnetic Field and Pressure in Rare Earth and Actinide Compounds
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稀土和锕系化合物在磁场和压力下的生长和独特电子态
DOI：
10.1143/jpsjs.81sb.sb001
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Y. Onuki
中科院分区：
文献类型：
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作者：
K. Kudo;M. Takasuga;Y. Okamoto;Z. Hiroi;and M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;野原実;野原実;M. Nohara;M. Nohara;野原実;kuto Kawasaki;Shunichiro Kittaka;Y. Haga;T.D. Matsuda;Y. Onuki
稀土和锕系化合物中的电子表现出多种特性，包括重费米子和非常规超导性。 de Haas-van Alphen 实验根据能带计算结果阐明了稀土和锕系化合物（如 CeSn3、USi3、NpGe3 和 PuIn3）的费米表面性质。在包括 YbT2Zn20(T: Co, Rh, Ir) 在内的重费米子化合物中发现了磁化强度的突然非线性增加，即变磁行为。还研究了磁场中压力对YbIr2Zn20和反铁磁体CeRhIn5和CeIrSi3电子态的影响。 CeRhIn5 中的电子不稳定性（包括非常规超导性）发生在约 2.4 GPa 处，CeIrSi3 中发生在 2.6 GPa 处。
Thefelectrons in rare earth and actinide compounds exhibit variety of characteristic properties including heavy fermions and unconventional superconductivity. Fermi surface properties in rare earth and actinide compounds such as CeSn3, USi3, NpGe3and PuIn3are clarified by the de Haas–van Alphen experiments on the basis of the results of energy band calculations. An abrupt nonlinear increase of magnetization, namely metamagnetic behavior is found in the heavy fermion compounds including YbT2Zn20(T: Co, Rh, Ir). An effect of pressure on the electronic state of YbIr2Zn20and antiferromagnets CeRhIn5and CeIrSi3are also studied in magnetic fields. The electronic instability including unconventional superconductivity occurs at about 2.4 GPa in CeRhIn5and 2.6 GPa in CeIrSi3.