Weak ferromagnetism and magnetization reversal in YFe1-xCrxO3

被引：92

作者：

Dasari, Nagamalleswararao ^{[1
]}

Mandal, P. ^{[2
]}

Sundaresan, A. ^{[2
]}

Vidhyadhiraja, N. S. ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Theoret Sci Unit, Bangalore 560064, Karnataka, India

[2] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

来源：

EPL | 2012年 / 99卷 / 01期

关键词：

D O I：

10.1209/0295-5075/99/17008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present combined experimental and theoretical studies on the magnetic properties of a solid solution between yttrium orthoferrite and yttrium orthochromite systems, YFe1-xCrxO3 (0 <= x <= 1), where Fe3+ and Cr3+ ions are distributed randomly at the same crystallographic site (4b). We found that all the compositions exhibit weak ferromagnetism below the Neel temperature that decreases nonlinearly with increasing x, while certain intermediate compositions (x - 0.4, 0.5) show a compensation point and magnetization reversal. This unusual behavior is explained based on a simple model comprising the isotropic superexchange and the antisymmetric Dzyaloshinskii-Moriya interactions. This model explains the magnetization behavior in the entire range of doping and temperature including the magnetization reversal which results from an interplay of various DM interactions such as, Fe-O-Fe, Cr-O-Cr and Fe-O-Cr. Copyright (C) EPLA, 2012

引用

页数：6

共 26 条

[1] NEW APPROACH TO THE THEORY OF SUPEREXCHANGE INTERACTIONS [J].

ANDERSON, PW .

PHYSICAL REVIEW, 1959, 115 (01) :2-13

[2] REVERSAL OF SPONTANEOUS MAGNETIZATION AS A FUNCTION OF TEMPERATURE IN LIFECR SPINELS [J].

GORTER, EW ;

SCHULKES, JA .

PHYSICAL REVIEW, 1953, 90 (03) :487-488

[3]

JINHUA MAO, 2011, APPL PHYS LETT, V98

[4] MAGNETIC PROPERTIES OF YFEO3 [J].

JUDIN, VM ;

SHERMAN, AB ;

MYLNIKOV.IE .

PHYSICS LETTERS, 1966, 22 (05) :554-+

[5]

KADOMTSEVA A.M., 1977, SOV PHYS JETP, V72, P2286

[6] Negative magnetization in La0.75Nd0.25CrO3 perovskite [J].

Khomchenko, V. A. ;

Troyanchuk, I. O. ;

Szymczak, R. ;

Szymczak, H. .

JOURNAL OF MATERIALS SCIENCE, 2008, 43 (16) :5662-5665

[7] NEUTRON-DIFFRACTION STUDY OF THE MAGNETIC PROPERTIES OF PEROVSKITE-LIKE COMPOUNDS LABO3 [J].

KOEHLER, WC ;

WOLLAN, EO .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1957, 2 (02) :100-106

[8] Numerical simulation of magnetic interactions in polycrystalline YFeO3 [J].

Lima, E., Jr. ;

Martins, T. B. ;

Rechenberg, H. R. ;

Goya, G. F. ;

Cavelius, C. ;

Rapalaviciute, R. ;

Hao, S. ;

Mathur, S. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2008, 320 (05) :622-629

[9] Temperature-induced magnetization reversal in BiFe0.5Mn0.5O3 synthesized at high pressure [J].

Mandal, P. ;

Sundaresan, A. ;

Rao, C. N. R. ;

Iyo, A. ;

Shirage, P. M. ;

Tanaka, Y. ;

Simon, Ch. ;

Pralong, V. ;

Lebedev, O. I. ;

Caignaert, V. ;

Raveau, B. .

PHYSICAL REVIEW B, 2010, 82 (10)

[10]

MANDAL P., 2012, J SOLID STATE UNPUB

← 1 2 3 →