Ferrimagnetism and defect clusters in Fe1-xOfilms

被引：24

作者：

Dimitrov, DV ^{[1
]}

Unruh, K

Hadjipanayis, GC

Papaefthymiou, V

Simopoulos, A

机构：

[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

[2] Univ Ioannina, Dept Phys, GR-45110 Ioannina, Greece

[3] NCSR Demokritos, Athens 15310, Greece

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.59.14499

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nonstoichiometric single phase Fe1-xO films with ferrimagnetic properties, large saturation magnetization (M-s), and low-temperature coercivity (H-c) have been prepared and studied. A model on the relation between M-s and the lattice parameter (a) is proposed. The model is based on the existence of 16:5 spinel-type defect clusters, and predicts a linear dependence between M-s and a. The experimental data of M-s versus a is a straight line passing through the point (M-s,a) of bulk Fe3O4. This fact suggests that Fe1-xO is the link between the two phases Fe3O4 and FeO, which have seemingly different physical nature and properties, into one class of materials. [S0163-1829(99)08221-1].

引用

页码：14499 / 14504

页数：6

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