Micromagnetics simulation of asymmetric pseudo-spin valve dots

N. Dao; C. A. Ross; F. J. Castaño; M. J. Donahue; S. L. Whittenburg

doi:10.1557/proc-731-w5.7

Micromagnetics simulation of asymmetric pseudo-spin valve dots

N. Dao, C. A. Ross, F. J. Castaño, M. J. Donahue, S. L. Whittenburg

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Abstract

We present simulation results for Ni₇₉Fe₂₁ (5 nm)/Cu (3 nm)/Co (4 nm) pseudo-spin valves. These simulations have been conducted on several different aspect ratios of rectangular dots. Distinct switches of the two magnetic layers were observed. At smaller aspect ratios, magnetization reversal proceeds through a leaf state in the soft layer and a flower state in the hard layer. For larger aspect ratios, reversal proceeds by nucleation and annihilation of domain walls. Our simulations show a reasonable agreement with the experimental results. Differences between the experimental and simulation results are discussed.

Original language	English
Pages (from-to)	291-296
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	731
DOIs	https://doi.org/10.1557/proc-731-w5.7
State	Published - 2002
Event	Modeling and Numerical Simulation of Materials Behavior and Evolution - San Francisco, CA, United States Duration: Apr 2 2002 → Apr 5 2002

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title = "Micromagnetics simulation of asymmetric pseudo-spin valve dots",

abstract = "We present simulation results for Ni79Fe21 (5 nm)/Cu (3 nm)/Co (4 nm) pseudo-spin valves. These simulations have been conducted on several different aspect ratios of rectangular dots. Distinct switches of the two magnetic layers were observed. At smaller aspect ratios, magnetization reversal proceeds through a leaf state in the soft layer and a flower state in the hard layer. For larger aspect ratios, reversal proceeds by nucleation and annihilation of domain walls. Our simulations show a reasonable agreement with the experimental results. Differences between the experimental and simulation results are discussed.",

author = "N. Dao and Ross, {C. A.} and Casta{\~n}o, {F. J.} and Donahue, {M. J.} and Whittenburg, {S. L.}",

year = "2002",

doi = "10.1557/proc-731-w5.7",

language = "English",

volume = "731",

pages = "291--296",

note = "Modeling and Numerical Simulation of Materials Behavior and Evolution ; Conference date: 02-04-2002 Through 05-04-2002",

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TY - JOUR

T1 - Micromagnetics simulation of asymmetric pseudo-spin valve dots

AU - Dao, N.

AU - Ross, C. A.

AU - Castaño, F. J.

AU - Donahue, M. J.

AU - Whittenburg, S. L.

PY - 2002

Y1 - 2002

N2 - We present simulation results for Ni79Fe21 (5 nm)/Cu (3 nm)/Co (4 nm) pseudo-spin valves. These simulations have been conducted on several different aspect ratios of rectangular dots. Distinct switches of the two magnetic layers were observed. At smaller aspect ratios, magnetization reversal proceeds through a leaf state in the soft layer and a flower state in the hard layer. For larger aspect ratios, reversal proceeds by nucleation and annihilation of domain walls. Our simulations show a reasonable agreement with the experimental results. Differences between the experimental and simulation results are discussed.

AB - We present simulation results for Ni79Fe21 (5 nm)/Cu (3 nm)/Co (4 nm) pseudo-spin valves. These simulations have been conducted on several different aspect ratios of rectangular dots. Distinct switches of the two magnetic layers were observed. At smaller aspect ratios, magnetization reversal proceeds through a leaf state in the soft layer and a flower state in the hard layer. For larger aspect ratios, reversal proceeds by nucleation and annihilation of domain walls. Our simulations show a reasonable agreement with the experimental results. Differences between the experimental and simulation results are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0036454392&partnerID=8YFLogxK

U2 - 10.1557/proc-731-w5.7

DO - 10.1557/proc-731-w5.7

M3 - Conference article

AN - SCOPUS:0036454392

SN - 0272-9172

VL - 731

SP - 291

EP - 296

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Modeling and Numerical Simulation of Materials Behavior and Evolution

Y2 - 2 April 2002 through 5 April 2002

ER -

Micromagnetics simulation of asymmetric pseudo-spin valve dots

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