Shape dependences of magnetic properties in 2D Ising nano-particles

被引：14

作者：

Kaneyoshi, T. ^{[1
]}

机构：

[1] Nagoya Univ, Midori Ku, Nagoya, Aichi 4580003, Japan

来源：

PHASE TRANSITIONS | 2013年 / 86卷 / 04期

关键词：

nanomagnetic material; phase diagram; magnetizations; COMPENSATION POINT; THIN-FILMS; NANOPARTICLE; TEMPERATURE; FIELD; CORE;

D O I：

10.1080/01411594.2012.699049

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The shape dependences of magnetic properties (phase diagram and magnetization) in two (circle and square) 2D Ising nano-particles are investigated by the use of both the core-shell model and the effective field theory with correlations, in order to clarify the effects of the shape difference to them. Particular emphasis is given to the effect to the magnetizations when the core-shell exchange coupling takes a different (positive or negative) sing. Some common phenomena are also found in the magnetic properties between the two nanosystems.

引用

页码：404 / 418

页数：15

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