Measurement of perpendicular spin torque at high bias via the pulsed switching phase diagram

Seung Young Park, Younghun Jo, Kyoung Jin Lee

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We report an experimental method to estimate the bias dependence of the perpendicular spin torque in magnetic tunnel junctions. This method utilizes the pulse-width-dependent change in the switching phase diagram and addresses the perpendicular-torque-driven precessional switching at high-bias ranges where the in-plane spin torque acts as an additional damping. The bias dependence of the perpendicular spin torque at high bias was found to be linear for a voltage polarity. This method will be useful to address spin torque effects in magnetic tunnel junctions at high bias.

Original languageEnglish
Article number214417
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number21
DOIs
Publication statusPublished - 2011 Dec 9

Fingerprint

Phase diagrams
torque
Torque
phase diagrams
Tunnel junctions
tunnel junctions
polarity
pulse duration
Damping
damping
Electric potential
electric potential
estimates

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Measurement of perpendicular spin torque at high bias via the pulsed switching phase diagram. / Park, Seung Young; Jo, Younghun; Lee, Kyoung Jin.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 84, No. 21, 214417, 09.12.2011.

Research output: Contribution to journalArticle

@article{b51e3d895ddc4b1e8d9da4cb5c73c74f,
title = "Measurement of perpendicular spin torque at high bias via the pulsed switching phase diagram",
abstract = "We report an experimental method to estimate the bias dependence of the perpendicular spin torque in magnetic tunnel junctions. This method utilizes the pulse-width-dependent change in the switching phase diagram and addresses the perpendicular-torque-driven precessional switching at high-bias ranges where the in-plane spin torque acts as an additional damping. The bias dependence of the perpendicular spin torque at high bias was found to be linear for a voltage polarity. This method will be useful to address spin torque effects in magnetic tunnel junctions at high bias.",
author = "Park, {Seung Young} and Younghun Jo and Lee, {Kyoung Jin}",
year = "2011",
month = "12",
day = "9",
doi = "10.1103/PhysRevB.84.214417",
language = "English",
volume = "84",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Institute of Physics Publising LLC",
number = "21",

}

TY - JOUR

T1 - Measurement of perpendicular spin torque at high bias via the pulsed switching phase diagram

AU - Park, Seung Young

AU - Jo, Younghun

AU - Lee, Kyoung Jin

PY - 2011/12/9

Y1 - 2011/12/9

N2 - We report an experimental method to estimate the bias dependence of the perpendicular spin torque in magnetic tunnel junctions. This method utilizes the pulse-width-dependent change in the switching phase diagram and addresses the perpendicular-torque-driven precessional switching at high-bias ranges where the in-plane spin torque acts as an additional damping. The bias dependence of the perpendicular spin torque at high bias was found to be linear for a voltage polarity. This method will be useful to address spin torque effects in magnetic tunnel junctions at high bias.

AB - We report an experimental method to estimate the bias dependence of the perpendicular spin torque in magnetic tunnel junctions. This method utilizes the pulse-width-dependent change in the switching phase diagram and addresses the perpendicular-torque-driven precessional switching at high-bias ranges where the in-plane spin torque acts as an additional damping. The bias dependence of the perpendicular spin torque at high bias was found to be linear for a voltage polarity. This method will be useful to address spin torque effects in magnetic tunnel junctions at high bias.

UR - http://www.scopus.com/inward/record.url?scp=84855326061&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84855326061&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.84.214417

DO - 10.1103/PhysRevB.84.214417

M3 - Article

VL - 84

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 21

M1 - 214417

ER -