Physics of rare earth - transition metal permanent magnets: theory of their magnetostriction

Lead Research Organisation: University of Warwick
Department Name: Physics

Abstract

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509796/1 30/09/2016 29/09/2021
1765002 Studentship EP/N509796/1 02/10/2016 30/03/2020 George Marchant
 
Description We have developed a method for computationally simulating the spontaneous deformation that ferromagnets undergo when exposed to a magnetic field, referred to as magnetostriction, and how this changes as a function of temperature. Using this method we were able to explain the anomalous temperature dependence of the magetostriction of Fe, which has been a small mystery for over 50 years.
Exploitation Route Our work provides a basis for investigations of more industry-relevant magnetostrictive materials such as Galfenol and Terfenol-D.
Sectors Energy

Manufacturing

including Industrial Biotechology

URL https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.054415