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.
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页数：7
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