First-order magnetization process as a tool of magnetic-anisotropy determination: Application to the uranium-based intermetallic U3Cu4Ge4

被引：4

作者：

Gorbunov, D. I. ^{[1
,2
]}

Henriques, M. S. ^{[2
,3
]}

Andreev, A. V. ^{[2
]}

Skourski, Y. ^{[1
]}

Richter, M. ^{[4
]}

Havela, L. ^{[5
]}

Wosnitza, J. ^{[1
,6
]}

机构：

[1] Helmholtz Zentrum, Dresden High Magnet Field Lab HLD EMFL, D-01314 Dresden, Germany

[2] Acad Sci Czech Republic, Inst Phys, Na Slovance 2, Prague 18221, Czech Republic

[3] Univ Lisbon, Inst Super Tecn, CCTN, Estr Nacl 10, P-2695066 Bobadela Lrs, Portugal

[4] IFW Dresden eV, POB 270116, D-01171 Dresden, Germany

[5] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, Ke Karlovu 5, CR-12116 Prague, Czech Republic

[6] Tech Univ Dresden, Inst Festkorperphys, D-01062 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2016年 / 93卷 / 06期

关键词：

FERMION SUPERCONDUCTOR UPT3; TEMPERATURE-DEPENDENCE; BULK SUPERCONDUCTIVITY; URU2SI2; UBE13; FIELD; FERROMAGNETISM; COEXISTENCE; TRANSPORT; U3FE4GE4;

D O I：

10.1103/PhysRevB.93.064417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Uranium-based intermetallic compounds often display very strong magnetic anisotropies, the energy of which is usually not directly accessible by common experimental methods. Here, we report on static- and pulsed-field studies of U3Cu4Ge4. This material orders ferromagnetically at T-C = 73K with the easy magnetization direction along the a axis and a strong bc-plane anisotropy. The magnetization measured for fields along the hard b direction displays a first-order magnetization process that can be described well by use of a phenomenological theory yielding anisotropy constants up to the sixth order. This phenomenological description, working excellently for U3Cu4Ge4, may also be applied for other uranium-based compounds.

引用

页数：7

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