Theoretical modeling demonstrates bidirectional domain wall motion in ferrimagnets under temperature gradients, highlighting a competition between entropic torque and angular momentum transfer.
When magnetic materials are subject to a temperature gradient, domain walls are known to move towards the hotter end of the system. This paper shows that in certain types of ferrimagnets, domain walls can move in either directions, towards the hotter or the cooler end, depending on temperature. This effect rests on a competition between maximization of entropy and an adiabatic transfer of magnonic angular momentum.
No takes yet. Share an insight, caveat, or question.
A 2020 study studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: