Glassy behavior of the Nd sublattice induced by Fe doping in NdFexGa1-xO3

被引：1

作者：

Bartolome, F. ^{[1
]}

Parra-Borderias, M. ^{[1
]}

Blasco, J. ^{[1
]}

Bartolome, J. ^{[1
]}

机构：

[1] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 316卷 / 02期

关键词：

rare earth orthoferrite; phase transition; spin glass behavior; specific heat; low temperature; LOW-TEMPERATURE; HEAT; NDGAO3; ORDER; IONS;

D O I：

10.1016/j.jmmm.2007.03.092

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of the magnetic ordering of Nd with the Fe content in NdFexGa1-xO3 is studied by low-temperature specific-heat measurements for x <= 0.2. The experiments show that Nd ordering takes place for x <= 0.1, but it is inhibited for x >= 0.2. Fe doping creates a distribution of internal fields on Nd, originating a Schottky contribution to the specific heat which is present for x > 0. The power law followed by the low-temperature specific heat suggests a glassy behavior for x >= 0.1. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：E659 / E662

页数：4

共 13 条

[1] Inhibition of Nd magnetic order in NdFe1-xCoxO3 (x ≤ 0.5) [J].

Bartolomé, F ;

Bartolomé, J .

SOLID STATE SCIENCES, 2005, 7 (06) :700-709

[2] Induced and cooperative order of Nd ions in NdNiO3 [J].

Bartolomé, F ;

Bartolomé, J ;

Eccleston, RS .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :7052-7054

[3] LOW-TEMPERATURE SPECIFIC-HEAT OF NDMO3 (M=CO, FE, CR, NI) - MAGNETIC-ORDERING OF ND [J].

BARTOLOME, F ;

KUZMIN, MD ;

BARTOLOME, J ;

BLASCO, J ;

GARCIA, J ;

SAPINA, F .

SOLID STATE COMMUNICATIONS, 1994, 91 (03) :177-182

[4] Specific heat and magnetic interactions in NdCrO3 [J].

Bartolomé, F ;

Bartolomé, J ;

Castro, M ;

Melero, JJ .

PHYSICAL REVIEW B, 2000, 62 (02) :1058-1066

[5] SPIN=1/2 XY MAGNETIC-ORDERING OF ND3+ IONS IN NDGAO3 [J].

BARTOLOME, F ;

KUZMIN, MD ;

MERINO, RI ;

BARTOLOME, J .

IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (02) :960-962

[6] Single-crystal neutron diffraction study of Nd magnetic ordering in NdFeO3 at low temperature [J].

Bartolome, J ;

Palacios, E ;

Kuzmin, MD ;

Bartolome, F ;

Sosnowska, I ;

Przenioslo, R ;

Sonntag, R ;

Lukina, MM .

PHYSICAL REVIEW B, 1997, 55 (17) :11432-11441

[7] Specific heat below 1 K - Some examples in magnetism [J].

Bartolome, J ;

Bartolome, F .

PHASE TRANSITIONS, 1997, 64 (1-2) :57-86

[8] Magnetic properties and specific heat of RMnO3 (R = Pr, Nd) -: art. no. 064418 [J].

Hemberger, J ;

Brando, M ;

Wehn, R ;

Ivanov, VY ;

Mukhin, AA ;

Balbashov, AM ;

Loidl, A .

PHYSICAL REVIEW B, 2004, 69 (06)

[9] Magnetic susceptibility of NdGaO3 at low temperatures:: A quasi-two-dimensional Ising behavior [J].

Luis, F ;

Kuz'min, MD ;

Bartolome, F ;

Orera, VM ;

Bartolome, J ;

Artigas, M ;

Rubin, J .

PHYSICAL REVIEW B, 1998, 58 (02) :798-804

[10] Magnetic impurities in conducting oxides.: I.: (Sr1-xLax)(Ru1-xFex)O3 system -: art. no. 104409 [J].

Mamchik, A ;

Chen, IW .

PHYSICAL REVIEW B, 2004, 70 (10) :104409-1

← 1 2 →