Elastic and Anelastic Magnetomechanical Phenomena Close to the Premartensitic Transition in Ni-Mn-Ga

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dc.contributor Kustov Dolgov, Sergey
dc.contributor.author Rosselló Coll, Jaime
dc.date 2022
dc.date.accessioned 2023-10-05T10:39:22Z
dc.date.available 2023-10-05T10:39:22Z
dc.date.issued 2021-11-02
dc.identifier.uri http://hdl.handle.net/11201/161961
dc.description.abstract [eng] The temperature and field dependences of internal friction (IF) and Young’s modulus (YM) are studied using longitudinal resonant oscillations (90 kHz) technique in stoichiometric ferromagnetic Ni2MnGa single crystal along the [100] direction, close to the premartensitic transformation temperature, TPM, in the demagnetized state and under moderate fields. It is shown that: the apparent Young’s modulus softens close to TPM under moderate fields, instead of the hardening outside this range. This effect and other previously reported as the splitting IF peak and YM minimum damping during premartensitic transition are interpreted in terms of superposition of classical magnetic domain wall -related Microeddy and Macroeddy current relaxations, which have not been considered so far as the origin of premartensitic anelastic effects in Ni2MnGa. ca
dc.format application/pdf
dc.language.iso eng ca
dc.publisher Universitat de les Illes Balears
dc.rights info:eu-repo/semantics/openAccess
dc.rights all rights reserved
dc.subject 51 - Matemàtiques ca
dc.subject 62 - Enginyeria. Tecnologia ca
dc.subject.other SMA ca
dc.subject.other FMSMA ca
dc.subject.other Magnetic Domains ca
dc.subject.other Premartenstic Transition ca
dc.subject.other Eddy Currents ca
dc.title Elastic and Anelastic Magnetomechanical Phenomena Close to the Premartensitic Transition in Ni-Mn-Ga ca
dc.type info:eu-repo/semantics/masterThesis ca
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2023-05-08T09:16:53Z

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