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Electromagnetic Waves Generation in Ni_{2.14}Mn_{0.81}GaFe_{0.05} Heusler Alloy at Structural Phase Transition

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Bychkov I., Kuzmin D., Kalenov D., Kamantsev A., Koledov V., Kuchin D., Shavrov V.

Acta Physica Polonica A

2015

vol. 127

issue 2

588-590

Electromagnetic waves generated by the Heusler alloy Ni_{2.14}Mn_{0.81}GaFe_{0.05} at structural phase transition was detected in the frequency range of 28-32 GHz. Influence of the kinetics of phase transitions on the nature of the sample millimeter radiation was studied as well. It has been observed that the contribution of the intrinsic radiation increases with increasing of the heating/cooling rate. The possible mechanisms and theory of such effect is discussed. It is shown that the maximum radiation intensity should be emitted in direction perpendicular to the movement of interphase boundary.

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1 Acta Physica Polonica A

1 2015

1 Bychkov I.

1 Kalenov D.

1 Kamantsev A.

1 Koledov V.

1 Kuchin D.

1 Kuzmin D.

1 Shavrov V.

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Electromagnetic Waves Generation in Ni_{2.14}Mn_{0.81}GaFe_{0.05} Heusler Alloy at Structural Phase Transition