Magnetic phase transitions in RMnGe (R=Tb, Dy) compounds induced by high magnetic fields

被引：3

作者：

Ivanova, T. I. ^{[1
,3
]}

Nikitin, S. A. ^{[1
]}

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

Gilewski, A. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia

[2] Moscow MV Lomonosov State Univ, Fac Chem, Moscow, Russia

[3] Int Lab High Magnet Fields & Low Temp, Wroclaw, Poland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 13期

关键词：

Ternary rare earth manganese germanide; Magnetic phase transition; High magnetic fields measurement;

D O I：

10.1016/j.jmmm.2009.12.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetization isotherms for polycrystalline TbMnGe and DyMnGe compounds were measured at the temperature 4.2 K in pulsed magnetic fields (up to 360 kOe). The received isotherms demonstrate the appearance of metamagnetic transitions at low temperatures. Both compounds crystallize in the orthorhombic TiNiSi-type structure. It was found that the magnetic phase transitions with a destruction of ferrimagnetic spiral structure occur in the TbMnGe and DyMnGe compounds in high magnetic fields. An attempt was undertaken to explain the nature of these transitions using the results of the powder neutron diffraction and the qualitative estimation of the exchange interaction values on the basis of the molecular field theory. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1741 / 1743

页数：3

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