Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys

A. Pramanick; X.-L. Wang; A. D. Stoica; C. Yu; Y. Ren; S. Tang; Z. Gai

doi:10.1103/PhysRevLett.112.217205

Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys

A. Pramanick^*, X.-L. Wang^*, A. D. Stoica, C. Yu, Y. Ren, S. Tang, Z. Gai

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

We report the kinetics of twin-boundary motion in the ferromagnetic shape-memory alloy of Ni-Mn-Ga as measured by in situ high energy synchrotron diffraction. The temporal evolution of twin reorientation during the application of a magnetic field is described by thermally activated creep motion of twin boundaries over a distribution of energy barriers. The dynamical creep exponent μ was found to be ∼0.5, suggesting that the distribution of energy barriers is a result of short-range disorders. © 2014 American Physical Society.

Original language	English
Article number	217205
Journal	Physical Review Letters
Volume	112
Issue number	21
Online published	30 May 2014
DOIs	https://doi.org/10.1103/PhysRevLett.112.217205
Publication status	Published - 30 May 2014

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COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: Pramanick, A., Wang, X-L., Stoica, A. D., Yu, C., Ren, Y., Tang, S., & Gai, Z. (2014). Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys. Physical Review Letters, 112(21), [217205]. https://doi.org/10.1103/PhysRevLett.112.217205. The copyright of this article is owned by American Physical Society.

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title = "Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys",

abstract = "We report the kinetics of twin-boundary motion in the ferromagnetic shape-memory alloy of Ni-Mn-Ga as measured by in situ high energy synchrotron diffraction. The temporal evolution of twin reorientation during the application of a magnetic field is described by thermally activated creep motion of twin boundaries over a distribution of energy barriers. The dynamical creep exponent μ was found to be ∼0.5, suggesting that the distribution of energy barriers is a result of short-range disorders. {\textcopyright} 2014 American Physical Society.",

author = "A. Pramanick and X.-L. Wang and Stoica, {A. D.} and C. Yu and Y. Ren and S. Tang and Z. Gai",

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language = "English",

volume = "112",

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T1 - Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys

AU - Pramanick, A.

AU - Wang, X.-L.

AU - Stoica, A. D.

AU - Yu, C.

AU - Ren, Y.

AU - Tang, S.

AU - Gai, Z.

PY - 2014/5/30

Y1 - 2014/5/30

N2 - We report the kinetics of twin-boundary motion in the ferromagnetic shape-memory alloy of Ni-Mn-Ga as measured by in situ high energy synchrotron diffraction. The temporal evolution of twin reorientation during the application of a magnetic field is described by thermally activated creep motion of twin boundaries over a distribution of energy barriers. The dynamical creep exponent μ was found to be ∼0.5, suggesting that the distribution of energy barriers is a result of short-range disorders. © 2014 American Physical Society.

AB - We report the kinetics of twin-boundary motion in the ferromagnetic shape-memory alloy of Ni-Mn-Ga as measured by in situ high energy synchrotron diffraction. The temporal evolution of twin reorientation during the application of a magnetic field is described by thermally activated creep motion of twin boundaries over a distribution of energy barriers. The dynamical creep exponent μ was found to be ∼0.5, suggesting that the distribution of energy barriers is a result of short-range disorders. © 2014 American Physical Society.

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U2 - 10.1103/PhysRevLett.112.217205

DO - 10.1103/PhysRevLett.112.217205

M3 - RGC 21 - Publication in refereed journal

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 217205

ER -

Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys

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GRF: In-situ Neutron Scattering Study to Understand the Magnetoelastic Coupling in Magnetic Shape Memory Alloys

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Kinetics of magnetoelastic twin-boundary motion in ferromagnetic shape-memory alloys

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GRF: In-situ Neutron Scattering Study to Understand the Magnetoelastic Coupling in Magnetic Shape Memory Alloys

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