Prediction of the Bain spin memory materials (BSMM) revealed by Kaneyoshi theory

ABSTRACT

In this work, we investigate the spin transformation from ferromagnetic austenite BCT lattice to antiferromagnetic martensite BCC lattice (j_i = +J → j_i = -J or ↑↑→↑↓) in Bain transformation (or Bain strain) by using effective field theory which is developed by Kaneyoshi. We find that the spin orientation changes the magnetic properties in the Bain BCT→BCC transformation. Therefore, we predict that material can memory their spin orientations in the austenite-martensite transformation similar to the shape memory effect in the shape memory materials. Since the austenite-martensite transformation mechanism is first modelled by Bain, we call this spin memory effect as 'Bain spin memory materials (BSMM)’.

KEYWORDS:

• Spin memory materials
• shape memory materials
• Bain transformation
• Bethe-Slater curve
• effective field theory

Acknowledgments

This work was supported by the Erciyes University Research funds, Grant No: FBA-2018-8513. We also would like to express our thanks to the Computer Center of Erciyes University.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Erciyes University Research funds, [grant number FBA-2018-8513]. We also would like to express our thanks to the Computer Center of Erciyes University.