Jerky magnetic noises generated by cyclic deformation of martensite in Ni2MnGa single crystalline shape memory alloys

L. Daróczi, Szilvia Gyöngyösi, László Z. Tóth, Sándor Szabó, D. Beke

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

It is shown that during periodic deformation of martensitic Ni2MnGa single crystalline alloy jerky magnetic noises are emitted. Above a threshold limit in the deformation amplitude, the noise energy per deformation cycle showed increasing tendency with increasing deformation. Energy and amplitude probability distributions of the noise were characterized by power law functions. The energy exponents were independent of the deformation amplitude in the investigated range. The decrease of the noise energy as well as power exponents with increasing magnetic field was interpreted by the decrease of the multiplicity of the martensite variants.

Original languageEnglish
Article number041908
JournalApplied Physics Letters
Volume106
Issue number4
DOIs
Publication statusPublished - Jan 26 2015

Fingerprint

shape memory alloys
martensite
exponents
energy
tendencies
cycles
thresholds
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Jerky magnetic noises generated by cyclic deformation of martensite in Ni2MnGa single crystalline shape memory alloys. / Daróczi, L.; Gyöngyösi, Szilvia; Tóth, László Z.; Szabó, Sándor; Beke, D.

In: Applied Physics Letters, Vol. 106, No. 4, 041908, 26.01.2015.

Research output: Contribution to journalArticle

@article{cd36d024809b4ba788dfa40fb5ad4374,
title = "Jerky magnetic noises generated by cyclic deformation of martensite in Ni2MnGa single crystalline shape memory alloys",
abstract = "It is shown that during periodic deformation of martensitic Ni2MnGa single crystalline alloy jerky magnetic noises are emitted. Above a threshold limit in the deformation amplitude, the noise energy per deformation cycle showed increasing tendency with increasing deformation. Energy and amplitude probability distributions of the noise were characterized by power law functions. The energy exponents were independent of the deformation amplitude in the investigated range. The decrease of the noise energy as well as power exponents with increasing magnetic field was interpreted by the decrease of the multiplicity of the martensite variants.",
author = "L. Dar{\'o}czi and Szilvia Gy{\"o}ngy{\"o}si and T{\'o}th, {L{\'a}szl{\'o} Z.} and S{\'a}ndor Szab{\'o} and D. Beke",
year = "2015",
month = "1",
day = "26",
doi = "10.1063/1.4907227",
language = "English",
volume = "106",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "4",

}

TY - JOUR

T1 - Jerky magnetic noises generated by cyclic deformation of martensite in Ni2MnGa single crystalline shape memory alloys

AU - Daróczi, L.

AU - Gyöngyösi, Szilvia

AU - Tóth, László Z.

AU - Szabó, Sándor

AU - Beke, D.

PY - 2015/1/26

Y1 - 2015/1/26

N2 - It is shown that during periodic deformation of martensitic Ni2MnGa single crystalline alloy jerky magnetic noises are emitted. Above a threshold limit in the deformation amplitude, the noise energy per deformation cycle showed increasing tendency with increasing deformation. Energy and amplitude probability distributions of the noise were characterized by power law functions. The energy exponents were independent of the deformation amplitude in the investigated range. The decrease of the noise energy as well as power exponents with increasing magnetic field was interpreted by the decrease of the multiplicity of the martensite variants.

AB - It is shown that during periodic deformation of martensitic Ni2MnGa single crystalline alloy jerky magnetic noises are emitted. Above a threshold limit in the deformation amplitude, the noise energy per deformation cycle showed increasing tendency with increasing deformation. Energy and amplitude probability distributions of the noise were characterized by power law functions. The energy exponents were independent of the deformation amplitude in the investigated range. The decrease of the noise energy as well as power exponents with increasing magnetic field was interpreted by the decrease of the multiplicity of the martensite variants.

UR - http://www.scopus.com/inward/record.url?scp=84923882235&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84923882235&partnerID=8YFLogxK

U2 - 10.1063/1.4907227

DO - 10.1063/1.4907227

M3 - Article

AN - SCOPUS:84923882235

VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 4

M1 - 041908

ER -