Phase segregation in the Pr0.8-yLayNa0.2MnO3 manganites (y≤0.15)

被引：1
|
作者：
Dlouha, M. [1 ]
Hejtmanek, J. [2 ]
Jirak, Z. [2 ]
Marysko, M. [2 ]
Vratislav, S. [1 ]
机构：
[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic
[2] Inst Phys CAS, Prague 16253 6, Czech Republic
来源：
PHYSICA B-CONDENSED MATTER | 2004年 / 350卷 / 1-3期
关键词：
Perovskite manganites; Phase segregation; Neutron diffraction; Magnetic transport; Electric transport;
D O I：
10.1016/j.physb.2004.03.002
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Perovskite manganites Pr(0.8-y)La(y)Na(0.2)MnO(3) are investigated using neutron diffraction, magnetic and, electric transport measurements. It is shown that lanthanum substitution induces a non-uniform magnetic state with a coexistence of ferromagnetic and pseudo-CE type antiferromagnetic domains. Their ratio is variable with a marked thermal hysteresis. The electric transport properties of the samples are governed by percolation of the ferromagnetic regions. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：E5 / E8
页数：4
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