Ferromagnetic properties of ZrZn2 -: art. no. 184436

被引：56

作者：

Yelland, EA ^{[1
]}

Yates, SJC ^{[1
]}

Taylor, O ^{[1
]}

Griffiths, A ^{[1
]}

Hayden, SM ^{[1
]}

Carrington, A ^{[1
]}

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevB.72.184436

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The low Curie temperature (T(C)approximate to 28 K) and small ordered moment (M(0)approximate to 0.17 mu(B) f.u.(-1)) of ZrZn2 make it one of the few examples of a weak itinerant ferromagnet. We report the results of susceptibility, magnetization, resistivity, and specific heat measurements made on high-quality single crystals of ZrZn2. From magnetization scaling in the vicinity of T-C (0.001 <parallel to T-T(C)parallel to/T-C< 0.08), we obtain the critical exponents beta=0.52 +/- 0.05 and delta=3.20 +/- 0.08, and T-C=27.50 +/- 0.05 K. Low-temperature magnetization measurements show that the easy axis is [111]. Resistivity measurements reveal an anomaly at T-C and a non-Fermi liquid temperature dependence rho(T)=rho(0)+AT(n), where n=1.67 +/- 0.02, for 1 < T < 14 K. The specific heat measurements show a mean-field-like anomaly at T-C. We compare our results to various theoretical models.

引用

页数：9

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