(Sr, Mn)TiO3: A Magnetoelectric Multiglass

被引：152

作者：

Shvartsman, V. V. ^{[1
]}

Bedanta, S. ^{[1
]}

Borisov, P. ^{[1
]}

Kleemann, W. ^{[1
]}

Tkach, A. ^{[2
]}

Vilarinho, P. M. ^{[2
]}

机构：

[1] Univ Duisburg Essen, D-47048 Duisburg, Germany

[2] Univ Aveiro, CICECO, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.101.165704

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By close analogy with multiferroic materials with coexisting long-range electric and magnetic orders a "multiglass" scenario of two different glassy states is observed in Sr0.98Mn0.02TiO3 ceramics. Sr-site substituted Mn2+ ions are at the origin of both a polar and a spin glass with glass temperatures T-g approximate to 38 K and <= 34 K, respectively. The structural freezing triggers that of the spins, and both glassy systems show individual memory effects. Thanks to strong spin-phonon interaction within the incipient ferroelectric host crystal SrTiO3, large higher order magnetoelectric coupling occurs between both glass systems.

引用

收藏

页数：4

相关论文

共 32 条

[1] Impurity centers and host microstructure in weakly doped SrTiO3:Mn crystals: New findings [J].

Badalyan, A. G. ;

Azzoni, C. B. ;

Galinetto, P. ;

Mozzati, M. C. ;

Trepakov, V. A. ;

Savinov, M. ;

Deyneka, A. ;

Jastrabik, L. ;

Rosa, J. .

FUNCTIONAL MATERIALS AND NANOTECHNOLOGIES : FM&NT-2007, 2007, 93

[2] SR1-XCAXTIO3 - AN XY QUANTUM FERROELECTRIC WITH TRANSITION TO RANDOMNESS [J].

BEDNORZ, JG ;

MULLER, KA .

PHYSICAL REVIEW LETTERS, 1984, 52 (25) :2289-2292

[3] SPIN-GLASSES - EXPERIMENTAL FACTS, THEORETICAL CONCEPTS, AND OPEN QUESTIONS [J].

BINDER, K ;

YOUNG, AP .

REVIEWS OF MODERN PHYSICS, 1986, 58 (04) :801-976

[4] Superconducting quantum interference device setup for magnetoelectric measurements [J].

Borisov, P. ;

Hochstrat, A. ;

Shvartsman, V. V. ;

Kleemann, W. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2007, 78 (10)

[5] UPPER BOUND ON MAGNETOELECTRIC SUSCEPTIBILITY [J].

BROWN, WF ;

HORNREICH, RM ;

SHTRIKMAN, S .

PHYSICAL REVIEW, 1968, 168 (02) :574-+

[6] Aging and memory effects in a disordered crystal [J].

Doussineau, P ;

de Lacerda-Arôso, T ;

Levelut, A .

EUROPHYSICS LETTERS, 1999, 46 (03) :401-406

[7] Multiferroic and magnetoelectric materials [J].

Eerenstein, W. ;

Mathur, N. D. ;

Scott, J. F. .

NATURE, 2006, 442 (7104) :759-765

[8] Magnetically induced phonon anisotropy in ZnCr2O4 from first principles [J].

Fennie, Craig J. ;

Rabe, Karin M. .

PHYSICAL REVIEW LETTERS, 2006, 96 (20)

[9] Magnetic and electric phase control in epitaxial EuTiO3 from first principles [J].

Fennie, Craig J. ;

Rabe, Karin M. .

PHYSICAL REVIEW LETTERS, 2006, 97 (26)

[10] Revival of the magnetoelectric effect [J].

Fiebig, M .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (08) :R123-R152

← 1 2 3 4 →