Theory of nonequilibrium intrinsic spin torque in a single nanomagnet

A. Manchon, Shufeng Zhang

Research output: Contribution to journalArticle

294 Citations (Scopus)

Abstract

In a single nanomagnet with spin-orbit interactions, the electrical current can generate a nonequilibrium spin density that gives rise to a spin torque on the magnetization. This spin torque does not involve spin transfer mechanism and originates from the band structure itself. We show that this spin torque can be effectively used to switch the direction of the magnetization and the critical switching current density could be as low as 104 - 106 A/ cm2 for a number of magnetic systems. Several magnetic systems for possible experimental realization are discussed.

Original languageEnglish (US)
Article number212405
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number21
DOIs
StatePublished - Dec 1 2008

Fingerprint

torque
Torque
Magnetization
Band structure
Orbits
Current density
magnetization
Switches
spin-orbit interactions
current density
Direction compound

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Theory of nonequilibrium intrinsic spin torque in a single nanomagnet. / Manchon, A.; Zhang, Shufeng.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 21, 212405, 01.12.2008.

Research output: Contribution to journalArticle

@article{969172f97dc843a0ab9904b9c40739f3,
title = "Theory of nonequilibrium intrinsic spin torque in a single nanomagnet",
abstract = "In a single nanomagnet with spin-orbit interactions, the electrical current can generate a nonequilibrium spin density that gives rise to a spin torque on the magnetization. This spin torque does not involve spin transfer mechanism and originates from the band structure itself. We show that this spin torque can be effectively used to switch the direction of the magnetization and the critical switching current density could be as low as 104 - 106 A/ cm2 for a number of magnetic systems. Several magnetic systems for possible experimental realization are discussed.",
author = "A. Manchon and Shufeng Zhang",
year = "2008",
month = "12",
day = "1",
doi = "10.1103/PhysRevB.78.212405",
language = "English (US)",
volume = "78",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "21",

}

TY - JOUR

T1 - Theory of nonequilibrium intrinsic spin torque in a single nanomagnet

AU - Manchon, A.

AU - Zhang, Shufeng

PY - 2008/12/1

Y1 - 2008/12/1

N2 - In a single nanomagnet with spin-orbit interactions, the electrical current can generate a nonequilibrium spin density that gives rise to a spin torque on the magnetization. This spin torque does not involve spin transfer mechanism and originates from the band structure itself. We show that this spin torque can be effectively used to switch the direction of the magnetization and the critical switching current density could be as low as 104 - 106 A/ cm2 for a number of magnetic systems. Several magnetic systems for possible experimental realization are discussed.

AB - In a single nanomagnet with spin-orbit interactions, the electrical current can generate a nonequilibrium spin density that gives rise to a spin torque on the magnetization. This spin torque does not involve spin transfer mechanism and originates from the band structure itself. We show that this spin torque can be effectively used to switch the direction of the magnetization and the critical switching current density could be as low as 104 - 106 A/ cm2 for a number of magnetic systems. Several magnetic systems for possible experimental realization are discussed.

UR - http://www.scopus.com/inward/record.url?scp=57749202726&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57749202726&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.78.212405

DO - 10.1103/PhysRevB.78.212405

M3 - Article

AN - SCOPUS:57749202726

VL - 78

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 21

M1 - 212405

ER -