Calculation of spin transfer torque in partially polarized spin valves including multiple reflections

Stephanie Hernández, Randall H Victora

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

An analytic expression that includes the effect of multiple reflections within the interface of a spin-valve composed of materials with partial spin polarization was obtained. Inclusion of this term in a micromagnetic calculation demonstrates the effect of the spin polarization of the magnetic material on the current induced behavior of the structure. We show that neglecting to include interfacial scattering events results in an underestimation of the switching current compared to the method detailed in this letter. Multiple reflections also produce a strong dependence of the switching current on the magnetocrystalline anisotropy of the fixed layer.

Original languageEnglish (US)
Article number062506
JournalApplied Physics Letters
Volume97
Issue number6
DOIs
StatePublished - Aug 9 2010

Fingerprint

torque
polarization
magnetic materials
inclusions
anisotropy
scattering

Cite this

Calculation of spin transfer torque in partially polarized spin valves including multiple reflections. / Hernández, Stephanie; Victora, Randall H.

In: Applied Physics Letters, Vol. 97, No. 6, 062506, 09.08.2010.

Research output: Contribution to journalArticle

@article{9f7fa2ac90704278ab9f1722b129bca2,
title = "Calculation of spin transfer torque in partially polarized spin valves including multiple reflections",
abstract = "An analytic expression that includes the effect of multiple reflections within the interface of a spin-valve composed of materials with partial spin polarization was obtained. Inclusion of this term in a micromagnetic calculation demonstrates the effect of the spin polarization of the magnetic material on the current induced behavior of the structure. We show that neglecting to include interfacial scattering events results in an underestimation of the switching current compared to the method detailed in this letter. Multiple reflections also produce a strong dependence of the switching current on the magnetocrystalline anisotropy of the fixed layer.",
author = "Stephanie Hern{\'a}ndez and Victora, {Randall H}",
year = "2010",
month = "8",
day = "9",
doi = "10.1063/1.3479533",
language = "English (US)",
volume = "97",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "6",

}

TY - JOUR

T1 - Calculation of spin transfer torque in partially polarized spin valves including multiple reflections

AU - Hernández, Stephanie

AU - Victora, Randall H

PY - 2010/8/9

Y1 - 2010/8/9

N2 - An analytic expression that includes the effect of multiple reflections within the interface of a spin-valve composed of materials with partial spin polarization was obtained. Inclusion of this term in a micromagnetic calculation demonstrates the effect of the spin polarization of the magnetic material on the current induced behavior of the structure. We show that neglecting to include interfacial scattering events results in an underestimation of the switching current compared to the method detailed in this letter. Multiple reflections also produce a strong dependence of the switching current on the magnetocrystalline anisotropy of the fixed layer.

AB - An analytic expression that includes the effect of multiple reflections within the interface of a spin-valve composed of materials with partial spin polarization was obtained. Inclusion of this term in a micromagnetic calculation demonstrates the effect of the spin polarization of the magnetic material on the current induced behavior of the structure. We show that neglecting to include interfacial scattering events results in an underestimation of the switching current compared to the method detailed in this letter. Multiple reflections also produce a strong dependence of the switching current on the magnetocrystalline anisotropy of the fixed layer.

UR - http://www.scopus.com/inward/record.url?scp=77955743966&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955743966&partnerID=8YFLogxK

U2 - 10.1063/1.3479533

DO - 10.1063/1.3479533

M3 - Article

AN - SCOPUS:77955743966

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 6

M1 - 062506

ER -