Paper Title:
Concepts and Physical Phenomena in Magnetic Shape Memory Science
  Abstract

The magnetically weakly anisotropic cubic Ni-Mn-Ga Heusler alloys exhibit martensitic transformation resulting in martensitic phases with elastically soft crystal lattices and strong magnetocrystalline anisotropies. The magnetic state of these martensites is coupled with a highly mobile twin structure through the ordinary magnetoelastic interactions giving rise to a giant magnetic-field-induced-strain effect. This effect is the key ingredient of a new scientific field. In the present article, the basic phenomena and concepts of this field, such as lattice instability, soft-mode behavior, electron concentration, ferromagnetic shape memory effect, magnetic-field-induced superelasticity, twinning strain-induced change of magnetization, and magnetoelastic mechanism of magnetostress are briefly reviewed.

  Info
Periodical
Edited by
Lluis Mañosa, P.K. Mukhopadhyay and S.R. Barman
Pages
3-14
DOI
10.4028/www.scientific.net/AMR.52.3
Citation
V. A. Chernenko, "Concepts and Physical Phenomena in Magnetic Shape Memory Science", Advanced Materials Research, Vol. 52, pp. 3-14, 2008
Online since
June 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kuo Jiang, X.Y. Bao, Sheng Kai Gong
Abstract:LSMO films with various thicknesses were prepared on single crystal Si (111) substrates by sol-gel process. The films were dense and had a...
220
Authors: Hong Zhang, Shui Yuan Chen, Su Zhen Tang, Wen Pao Ke, Heng Lai, Zhi Gao Huang
Abstract:La2/3(Ca0.6Ba0.4)1/3Mn1-xVxO3 (x=0, 0.03, 0.05, 0.07, 0.10, 0.15, 0.20) nanoparticles were synthesized using sol-gel technology. The...
901
Authors: Zhen Zhen Weng, Zhi Gao Huang, Wen Xiong Lin
Abstract:The interatomic exchange interactions and the electronic structure of Co-doped ZnO with and without oxygen vacancy have been investigated by...
124
Authors: Li Li Tang, Chun Bo Wang
Chapter 2: Powder Metallurgy and Ceramic Forming
Abstract:We focus on the annealing-induced changes of N-centered nearest-neighbor (NN) entironment in Ga1-xlnxNyAs1-y quaternary alloys and present a...
768
Authors: Fan Jun Zeng, Qing Lin Xia
Abstract:The electronic structure, chemical bonding and elastic properties of Ti3AC2 (A=Al, Si, Sn) were investigated by generalized gradient...
117