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Large spontaneous shape memory and magnetic‐field induced strain in Ni~51~Mn~25.5~Ga~23.5~ single crystal by Yuting Cui; Yong Ma; Chunyang Kong; Xiaohong Yang; Jinglan Chen; Fusheng Pan; Guangheng Wu is a Materials Science article available to read on EtoBox.

What is Large spontaneous shape memory and magnetic‐field induced strain in Ni~51~Mn~25.5~Ga~23.5~ single crystal about?

## Abstract Martensitic transformations and characteristics of the magnetic‐field‐induced strain (MFIS) on a nearly stoichiometric Ni~51~Mn~25.5~Ga~23.5~ single crystal have systematically been investigated by various methods, such as ac magnetic susceptibility, resistance, strain measurements and metallographic observations. A large spontaneous strain of 1.62% corresponding to a two‐way thermoelastic shape memory effect is obtained in the single crystal, which is attributed to the high level of oriented internal stress and the preferential orientation of the martensitic variants. When the sample is cooled in a dc magnetic field applied perpendicular to the measuring direction of strain, a large and reversible MFIS up to 1.5% is found. This value of 1.5% is approximately two times larger than that detected in zero field cooling. The results are discussed with respect to growth mechanism of single crystals and the shape memory characteristics. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Who reads Large spontaneous shape memory and magnetic‐field induced strain in Ni~51~Mn~25.5~Ga~23.5~ single crystal?

Author

Yuting Cui; Yong Ma; Chunyang Kong; Xiaohong Yang; Jinglan Chen; Fusheng Pan; Guangheng Wu

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley; Wiley - V C H Verlag GmbbH & Co. (ISSN 0031-8965)

Published

2006

Language

EN

Field

Materials Science (Physical Sciences)