Encounter of Onsager reciprocity relations in spintronics

29 Jun 2020 - fubar - Sreekar Guddeti

We have listed the frequently occuring Onsager reciprocity relations that emphasize that action reaction nature of interaled effects.

Historical context

We encounter Onsager’s reciprocity relations in Phase transitions(Eugene Stanley) as well as theory of micromagnetics (W.F. Brown)

From Brataas Nature Review[2012]

This follows from Onsager’s reciprocity relations showing that spin pumping and spin-transfer torque are two fundamentally equivalent dynamic processes in magnetic structures

Some examples

• Spin transfer torque vs spin pumping

• spin Hall effect vs inverse spin Hall effect

• Piezo electric effect vs ???

• Magnetoelastic anistropy vs inverse magneto striction

• Spin Nernst effect