High/low-moment phase transition in hexagonal Mn-Fe-P-Si compounds

被引：86

作者：

Dung, N. H. ^{[1
]}

Zhang, L. ^{[1
,2
]}

Ou, Z. Q. ^{[1
]}

Zhao, L. ^{[3
]}

van Eijck, L. ^{[1
]}

Mulders, A. M. ^{[4
]}

Avdeev, M. ^{[5
]}

Suard, E. ^{[6
]}

van Dijk, N. H. ^{[1
]}

Brueck, Ekkes ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Appl Sci, NL-2629 JB Delft, Netherlands

[2] BASF Nederland BV, NL-3454 PK De Meern, Netherlands

[3] Delft Univ Technol, Dept Mat Sci & Engn, NL-2628 CD Delft, Netherlands

[4] Univ New S Wales, Canberra, ACT 2600, Australia

[5] ANSTO, Bragg Inst, Kirrawee Dc, NSW 2232, Australia

[6] ILL Grenoble, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW B | 2012年 / 86卷 / 04期

关键词：

MAGNETIC-STRUCTURE; ALLOYS; REFRIGERATION; DIFFRACTION;

D O I：

10.1103/PhysRevB.86.045134

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using high-resolution neutron diffraction measurements for Mn-rich hexagonal Mn-Fe-P-Si compounds, we show that the substitution of Mn for Fe on the 3f sites results in a linear decrease of the Fe/Mn(3f) magnetic moments, while the Mn(3g) magnetic moments remain constant. With increasing temperature, the Mn(3g) magnetic moments show almost no change, while the Fe/Mn(3f) moments decrease quickly when the transition temperature is approached. The reduction of the magnetic moments at the transition temperature and in the high-temperature range is discussed based on changes in interatomic distances and lattice parameters and high-temperature magnetic-susceptibility measurement.

引用

页数：7

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