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High magnetic field behavior of strongly correlated uranium-based compounds
Advances in Physics ( IF 35.0 ) Pub Date : 2017-10-02 , DOI: 10.1080/00018732.2017.1466475
J.A. Mydosh 1
Affiliation  

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.

中文翻译:

强相关铀基化合物的高磁场行为

现在,在低于 0.3 K 的温度下,磁场可达到 100 T(脉冲)和 45 T(静态)。这些技术发展允许研究和调整(量子)相变、不寻常的磁结构和(高温)超导体。各种量子材料。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、隐藏有序 (H2O) 和其他神秘的基态。在“重费米子”中,铀基化合物中 5f 电子的二元性引入了可能受大磁场影响的有趣行为。我列出了一些需要考虑的重费米子材料:URu2Si2 及其可调隐藏态,UBe13 和 UPt3 作为超导的 HFL 顺磁体,磁性超导体 UPd2Al3 和 UNi2Al3,以及铁磁体 s UGe2、URhGe 和 UCoGe。还有建议的变磁费米表面重建金属间化合物,如 UPt2Si2 和 UCo2Si2。目前的研究重点集中在 URu2Si2 的高场行为(30-40 T)及其对 H2O 的破坏上。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很远的未来。目前的研究重点集中在 URu2Si2 的高场行为(30-40 T)及其对 H2O 的破坏上。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很远的未来。目前的研究重点集中在 URu2Si2 的高场行为(30-40 T)及其对 H2O 的破坏上。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很远的未来。
更新日期:2017-10-02
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