Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids

Gerrit E.W. Bauer, Yaroslav Tserkovnyak, Daniel Huertas-Hernando, Arne Brataas

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)

Abstract

The electrical resistance of ferromagnetic/normal-metal (formula presented) heterostructures depends on the nature of the junctions that may be tunnel barriers, point contacts, or intermetallic interfaces. For all junction types, the resistance of disordered (formula presented) perpendicular spin valves as a function of the angle between magnetization vectors is shown to obey a simple universal law. The spin-current induced magnetization torque can be measured by the angular magnetoresistance of these spin valves. The results are generalized to arbitrary magnetoelectronic circuits.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume67
Issue number9
DOIs
Publication statusPublished - 2003 Mar 25

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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