High magnetic field behavior of strongly correlated uranium-based compounds

IF 35 1区 物理与天体物理 Q1 PHYSICS, CONDENSED MATTER
J. Mydosh
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引用次数: 7

Abstract

Magnetic fields are now available to 100 T (pulsed), 45 T (static) at temperatures below 0.3 K. Such technical developments allow the study and tuning of (quantum) phase transitions, unusual magnetic structures and (high-temperature) superconductors in a variety of quantum materials. An especially important class of strongly correlated electron materials is the heavy Fermi liquids (HFLs) displaying numerous reduced-moment antiferromagnets, quantum critical points, unconventional superconductivity, hidden order (HO) and other mysterious ground states. Among the ‘heavy fermions’, the duality of 5f electrons in uranium-based compounds introduces interesting behavior that can be affected by large magnetic fields. I list a few such heavy fermion materials to be considered: URu2Si2 and its tunable hidden state, UBe13 and UPt3 as very HFL paramagnets that become superconducting, the magnetic superconductors UPd2Al3 and UNi2Al3, and the ferromagnetic s UGe2, URhGe and UCoGe. There are also the suggested metamagnetic Fermi-surface reconstructed intermetallic compounds such as UPt2Si2 and UCo2Si2. Present research attention focuses on the high-field behavior (30–40 T) of URu2Si2 and its destruction of HO. These and other U-based systems, e.g. UAu2Si2, UIrGe, etc., expand the opportunities of high magnetic field studies far into the future.
强相关铀基化合物的高磁场行为
磁场现在可用于100 T(脉冲),45 温度低于0.3时的T(静态) K.这样的技术发展允许研究和调谐各种量子材料中的(量子)相变、不寻常的磁性结构和(高温)超导体。一类特别重要的强相关电子材料是重费米液体(HFL),它显示出许多减矩反铁磁体、量子临界点、非常规超导性、隐序(HO)和其他神秘基态。在“重费米子”中,铀基化合物中5f电子的对偶性引入了有趣的行为,这种行为可能受到大磁场的影响。我列出了一些需要考虑的重费米子材料:URu2Si2及其可调谐的隐藏态,UBe13和UPt3是成为超导的HFL顺磁体,磁性超导体UPd2Al3和UNi2Al3,以及铁磁材料UGe2、URhGe和UCoGe。还提出了超磁性费米表面重建的金属间化合物,如UPt2Si2和UCo2Si2。目前的研究重点是高场行为(30-40 T) URu2Si2及其对HO的破坏。这些和其他基于U的系统,例如UAu2Si2、UIrGe等,将高磁场研究的机会扩展到了遥远的未来。
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来源期刊
Advances in Physics
Advances in Physics 物理-物理:凝聚态物理
CiteScore
67.60
自引率
0.00%
发文量
1
期刊介绍: Advances in Physics publishes authoritative critical reviews by experts on topics of interest and importance to condensed matter physicists. It is intended for motivated readers with a basic knowledge of the journal’s field and aims to draw out the salient points of a reviewed subject from the perspective of the author. The journal''s scope includes condensed matter physics and statistical mechanics: broadly defined to include the overlap with quantum information, cold atoms, soft matter physics and biophysics. Readership: Physicists, materials scientists and physical chemists in universities, industry and research institutes.
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