Universality in Voltage-driven Nonequilibrium Phase Transitions

Details Universality in Voltage-driven Nonequilibrium Phase Transitions Universality in Voltage-driven Nonequilibrium Phase Transitions

2006-10-11

arxiv.org/abs/cond-mat/0610280v2

J. Low Temp. Phys. 147 (3-4), 505 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 4 figures. J. Low Temp. Phys., published version. Discussion of the relation to quantum phase transitions, cond-mat/

Scientific paper

10.1007/s10909-007-9323-z

We consider the non-equilibrium ferromagnetic transition of a mesoscopic sample of a resistive Stoner ferromagnet coupled to two paramagnetic leads. The transition is controlled by either the lead temperature T or the transport voltage V applied between the leads. We calculate the T and V dependence of the magnetization. For systems with a flat density of states we find within mean-field theory that even at finite bias the magnetization does not depend on the position along the sample axis, although the charge density and other quantities do vary. This may be relevant for possible spintronics applications. In addition, we establish a generalized control parameter in terms of T and V which allows for a universal description of the temperature- and voltage-driven transition.

Affiliated with

Also associated with

No associations

Rating

Universality in Voltage-driven Nonequilibrium Phase Transitions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Universality in Voltage-driven Nonequilibrium Phase Transitions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universality in Voltage-driven Nonequilibrium Phase Transitions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-578311