Absence of long-range Ni/Mn ordering in ferromagnetic La2NiMnO6 thin films

被引：93

作者：

Singh, M. P. ^{[1
]}

Grygiel, C. ^{[1
]}

Sheets, W. C. ^{[1
]}

Boullay, Ph. ^{[1
]}

Hervieu, M. ^{[1
]}

Prellier, W. ^{[1
]}

Mercey, B. ^{[1
]}

Simon, Ch. ^{[1
]}

Raveau, B. ^{[1
]}

机构：

[1] ENSICAEN, CNRS, Lab CRISMAT, UMR 6508, F-14050 Caen, France

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 01期

关键词：

D O I：

10.1063/1.2753715

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial La2NiMnO6 thin films have been grown on (001)-orientated SrTiO3 using the pulsed laser deposition technique. The thin film samples are semiconducting and ferromagnetic with a Curie temperature close to 270 K, a coercive field of 920 Oe, and a saturation magnetization of 4.85 mu(B)/formula unit. Transmission electron microscopy, conducted at room temperature, reveals a majority phase having an "I-centered" structure with a approximate to c approximate to a(sub) root(2) over bar and b approximate to 2a(sub) along with minority phase domains having a "P-type" structure (a(sub) being the lattice parameter of the cubic perovskite structure). A discussion on the absence of Ni/Mn long-range ordering, in light of recent literature on the ordered double-perovskite La2NiMnO6 is presented. (c) 2007 American Institute of Physics.

引用

页数：3

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