Spin Injection as a Source of the Metamagnetic Phase Transition

Abstract:

We consider a metamagnetic phase transition of itinerant electrons in the metamagnetic- ferromagnetic metal junction. The current flow between a ferromagnetic metal and a metamagnetic metal produces the non-equilibrium spin imbalance acting as an effective magnetic field and initiating the first-order type transition from low- to high-magnetization states of the metamagnet in the vicinity of the ferromagnet. We show that the current dependence of the length of high-magnetization state region diverges at some threshold value, due to nonequilibrium shift, generated in a contact between the high and low magnetization states of the metamagnetic metal.

• Periodical: Solid State Phenomena (Volumes 168-169)
• Pages: 461-464
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.168-169.461
• Online since: December 2010
• Authors: A.A. Zyuzin, A.Y. Zyuzin
• Keywords: Metamagnetic Phase Transitions, Metamagnetism of Itinerant Electrons, Spin Injection

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