de Haas-van Alphen effect in ZrZn2 under pressure:: Crossover between two magnetic states -: art. no. 197002

被引：45

作者：

Kimura, N ^{[1
]}

Endo, M

Isshiki, T

Minagawa, S

Ochiai, A

Aoki, H

Terashima, T

Uji, S

Matsumoto, T

Lonzarich, GG

机构：

[1] Tohoku Univ, Ctr Low Temp Sci, Sendai, Miyagi 9808578, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3500047, Japan

[3] Univ Cambridge, Cavendish Lab, Cambridge CB4 0HB, England

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.92.197002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measurements of the de Haas-van Alphen effect in ZrZn2 under hydrostatic pressures up to 21 kbar where the Curie temperature vanishes. The exchange splitting of a Fermi surface changes in behavior with increasing magnetic field, which is qualitatively consistent with the behavior of the high-field magnetization, suggesting the existence of a crossover between two distinct magnetic states. These and previously unexplained findings may be understood in terms of a p-T-B phase diagram qualitatively similar to that of the ferromagnetic superconductor UGe2.

引用

页码：197002 / 1

页数：4

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