Formation of a martensitic twins structure in Ni2.16Mn0.84Ga heusler alloy by high magnetic fields under adiabatic and isothermal conditions


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Abstract

The results are presented from experimental studies of the formation of martensitic twin structures in Ni2.16Mn0.84Ga Heusler alloy under the effect of magnetic fields of up to 14 T using a specially developed optical microscope under isothermal and adiabatic conditions. A qualitative model is proposed that explains the differences between the progress magnetoinduced magnetostructural first-order phase transitions under different thermodynamic conditions.

About the authors

E. T. Dilmieva

Kotelnikov Institute of Radio Engineering and Electronics; International Laboratory of High Magnetic Fields and Low Temperatures; Bauman Moscow State Technical University

Author for correspondence.
Email: kelvit@mail.ru
Russian Federation, Moscow, 125009; Wroclaw, 53-421; Moscow, 105005

Y. S. Koshkid’ko

International Laboratory of High Magnetic Fields and Low Temperatures

Email: kelvit@mail.ru
Poland, Wroclaw, 53-421

V. V. Koledov

Kotelnikov Institute of Radio Engineering and Electronics; International Laboratory of High Magnetic Fields and Low Temperatures

Email: kelvit@mail.ru
Russian Federation, Moscow, 125009; Wroclaw, 53-421

A. P. Kamantsev

Kotelnikov Institute of Radio Engineering and Electronics

Email: kelvit@mail.ru
Russian Federation, Moscow, 125009

A. V. Mashirov

Kotelnikov Institute of Radio Engineering and Electronics

Email: kelvit@mail.ru
Russian Federation, Moscow, 125009

J. Cwik

International Laboratory of High Magnetic Fields and Low Temperatures

Email: kelvit@mail.ru
Poland, Wroclaw, 53-421

V. V. Khovaylo

National University of Science and Technology MISiS

Email: kelvit@mail.ru
Russian Federation, Moscow, 119049

V. G. Shavrov

Kotelnikov Institute of Radio Engineering and Electronics

Email: kelvit@mail.ru
Russian Federation, Moscow, 125009

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