Coupled magnetic and structural transitions in EuMn2O5 as studied by neutron diffraction and three-dimensional polarization analysis

被引：51
|
作者：
Polyakov, V [1 ]
Plakhty, V
Bonnet, M
Burlet, P
Regnault, LP
Gavrilov, S
Zobkalo, I
Smirnov, O
机构：
[1] RAS, Petersburg Nucl Phys Inst, St Petersburg 188300, Russia
[2] CEA, DRFMC, SPSMC, F-38054 Grenoble, France
来源：
PHYSICA B | 2001年 / 297卷 / 1-4期
关键词：
EuMn2O5; simultaneous magnetic and ferroelectric transitions; polar atomic displacements; three-dimensional polarization analysis;
D O I：
10.1016/S0921-4526(00)00851-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A number of magnetic and structural phase transitions in EuMn2 O-5 is observed below T-N similar or equal to 40K by neutron (1/2(0.03)). A ferroelectric transition occurs at T-N with the polar displacements of Mn3+ ions along axis a. Three-dimentional dimensional polarization analysis has shown, that magnetic moments lie in a-c plane down to T-1 similar or equal to 22K. Second structural transition, mainly due to the polar shifts of the Mn4+ ions along c, is observed at T-1. It is accompanied by a magnetic phase transition and by appearance of the b-component of spins. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：208 / 212
页数：5
相关论文
共 50 条
  • [1] Neutron studies of magnetic properties of EuMn2O5
    Zobkalo, IA
    Polyakov, VA
    Smirnov, OP
    Gavrilov, SV
    Plakhtii, VP
    Golosovskii, IV
    Sharygin, SN
    FIZIKA TVERDOGO TELA, 1996, 38 (04): : 1307 - 1309
  • [2] SERIES OF PHASE-TRANSITIONS IN EUMN2O5
    SANINA, VA
    SAPOZHNIKOVA, LM
    GOLOVENCHITS, EI
    MOROZOV, NV
    FIZIKA TVERDOGO TELA, 1988, 30 (10): : 3015 - 3023
  • [3] MAGNETOELECTRIC EFFECT AND SIMULTANEOUS ELECTRIC AND MAGNETIC TRANSITION IN EUMN2O5
    DOI, T
    KOHN, K
    PHASE TRANSITIONS, 1992, 38 (04) : 273 - 284
  • [4] Magnetoelectric effect and field-induced `incommensurate-homogeneous' phase transitions in EuMn2O5
    Moscow State Univ, Moscow, Russia
    J Magn Magn Mater, 1-2 (237-240):
  • [5] Magnetoelectric effect and field-induced 'incommensurate-homogeneous' phase transitions in EuMn2O5
    Popov, YF
    Kadomtseva, AM
    Vorob'ev, GP
    Sanina, VA
    Tehranchi, MM
    Zvezdin, AK
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1998, 188 (1-2) : 237 - 240
  • [6] Low-temperature phase transition in EuMn2O5 induced by a strong magnetic field
    Popov, YF
    Kadomtseva, AM
    Vorob'ev, GP
    Sanina, VA
    Zvezdin, AK
    Tehranchi, MM
    PHYSICA B, 2000, 284 : 1402 - 1403
  • [7] Magnetic ordering in NdMn2O5 studied by the neutron diffraction
    Zobkalo, I. A.
    Gavrilov, S. V.
    Nyi, N. Z. Saw
    Barilo, S. N.
    Shiryaev, S. V.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 354 : 85 - 89
  • [8] Simultaneous structural and magnetic transitions in YFe4Ge2 studied by neutron diffraction and magnetic measurements
    Schobinger-Papamantellos, P
    Rodríguez-Carvajal, J
    André, G
    Duong, NP
    Buschow, KHJ
    Tolédano, P
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 236 (1-2) : 14 - 27
  • [9] Successive magnetic transitions in TbNiAl2 studied by neutron diffraction
    Rojas, D. P.
    Sanchez Marcos, J.
    Rodriguez Fernandez, J.
    6TH MEETING OF THE SPANISH NEUTRON SCATTERING ASSOCIATION (SETN2012), 2014, 549
  • [10] Magnetic behavior of R2Cu2O5 cuprates studied by neutron diffraction
    Phys Rev B, 10 (6594):
12345