Driving magnetization perpendicular by antiferromagnetic-ferromagnetic exchange coupling

B. Y. Wang, N. Y. Jih, W. C. Lin, C. H. Chuang, P. J. Hsu, C. W. Peng, Y. C. Yeh, Y. L. Chan, D. H. Wei, W. C. Chiang, Minn Tsong Lin

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Using x-ray photoemission electron microscopy and the magneto-optical Kerr effect, we have demonstrated a perpendicular magnetic anisotropy that could be due to exchange coupling between the ferromagnetic and antiferromagnetic layers. The results of magnetic imaging and hysteresis loops show that the magnetization of Fe and permalloy (Py) films orients from the in-plane to perpendicular direction, as an Mn underlayer is above a threshold value that depends on the Fe or Py layer thickness. Their thickness-dependent behaviors can be quantitatively described by a phenomenological model that takes into account the finite-size effect of the antiferromagnet on exchange coupling. The anisotropy energy extracted from the model and the thermal stability of perpendicular magnetization enhanced with the increase of the Mn underlayer further demonstrate the exchange coupling nature.

Original languageEnglish
Article number104417
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number10
DOIs
Publication statusPublished - 2011 Mar 22

Fingerprint

Exchange coupling
Magnetization
Permalloys (trademark)
magnetization
Optical Kerr effect
anisotropy
Magnetic anisotropy
Photoemission
Hysteresis loops
Kerr effects
Electron microscopy
electron microscopy
Anisotropy
Thermodynamic stability
thermal stability
photoelectric emission
hysteresis
Imaging techniques
X rays
thresholds

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Driving magnetization perpendicular by antiferromagnetic-ferromagnetic exchange coupling. / Wang, B. Y.; Jih, N. Y.; Lin, W. C.; Chuang, C. H.; Hsu, P. J.; Peng, C. W.; Yeh, Y. C.; Chan, Y. L.; Wei, D. H.; Chiang, W. C.; Lin, Minn Tsong.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 83, No. 10, 104417, 22.03.2011.

Research output: Contribution to journalArticle

Wang, BY, Jih, NY, Lin, WC, Chuang, CH, Hsu, PJ, Peng, CW, Yeh, YC, Chan, YL, Wei, DH, Chiang, WC & Lin, MT 2011, 'Driving magnetization perpendicular by antiferromagnetic-ferromagnetic exchange coupling', Physical Review B - Condensed Matter and Materials Physics, vol. 83, no. 10, 104417. https://doi.org/10.1103/PhysRevB.83.104417
Wang, B. Y. ; Jih, N. Y. ; Lin, W. C. ; Chuang, C. H. ; Hsu, P. J. ; Peng, C. W. ; Yeh, Y. C. ; Chan, Y. L. ; Wei, D. H. ; Chiang, W. C. ; Lin, Minn Tsong. / Driving magnetization perpendicular by antiferromagnetic-ferromagnetic exchange coupling. In: Physical Review B - Condensed Matter and Materials Physics. 2011 ; Vol. 83, No. 10.
@article{2451e69c0d634d1eaa4fabd84be067db,
title = "Driving magnetization perpendicular by antiferromagnetic-ferromagnetic exchange coupling",
abstract = "Using x-ray photoemission electron microscopy and the magneto-optical Kerr effect, we have demonstrated a perpendicular magnetic anisotropy that could be due to exchange coupling between the ferromagnetic and antiferromagnetic layers. The results of magnetic imaging and hysteresis loops show that the magnetization of Fe and permalloy (Py) films orients from the in-plane to perpendicular direction, as an Mn underlayer is above a threshold value that depends on the Fe or Py layer thickness. Their thickness-dependent behaviors can be quantitatively described by a phenomenological model that takes into account the finite-size effect of the antiferromagnet on exchange coupling. The anisotropy energy extracted from the model and the thermal stability of perpendicular magnetization enhanced with the increase of the Mn underlayer further demonstrate the exchange coupling nature.",
author = "Wang, {B. Y.} and Jih, {N. Y.} and Lin, {W. C.} and Chuang, {C. H.} and Hsu, {P. J.} and Peng, {C. W.} and Yeh, {Y. C.} and Chan, {Y. L.} and Wei, {D. H.} and Chiang, {W. C.} and Lin, {Minn Tsong}",
year = "2011",
month = "3",
day = "22",
doi = "10.1103/PhysRevB.83.104417",
language = "English",
volume = "83",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
number = "10",

}

TY - JOUR

T1 - Driving magnetization perpendicular by antiferromagnetic-ferromagnetic exchange coupling

AU - Wang, B. Y.

AU - Jih, N. Y.

AU - Lin, W. C.

AU - Chuang, C. H.

AU - Hsu, P. J.

AU - Peng, C. W.

AU - Yeh, Y. C.

AU - Chan, Y. L.

AU - Wei, D. H.

AU - Chiang, W. C.

AU - Lin, Minn Tsong

PY - 2011/3/22

Y1 - 2011/3/22

N2 - Using x-ray photoemission electron microscopy and the magneto-optical Kerr effect, we have demonstrated a perpendicular magnetic anisotropy that could be due to exchange coupling between the ferromagnetic and antiferromagnetic layers. The results of magnetic imaging and hysteresis loops show that the magnetization of Fe and permalloy (Py) films orients from the in-plane to perpendicular direction, as an Mn underlayer is above a threshold value that depends on the Fe or Py layer thickness. Their thickness-dependent behaviors can be quantitatively described by a phenomenological model that takes into account the finite-size effect of the antiferromagnet on exchange coupling. The anisotropy energy extracted from the model and the thermal stability of perpendicular magnetization enhanced with the increase of the Mn underlayer further demonstrate the exchange coupling nature.

AB - Using x-ray photoemission electron microscopy and the magneto-optical Kerr effect, we have demonstrated a perpendicular magnetic anisotropy that could be due to exchange coupling between the ferromagnetic and antiferromagnetic layers. The results of magnetic imaging and hysteresis loops show that the magnetization of Fe and permalloy (Py) films orients from the in-plane to perpendicular direction, as an Mn underlayer is above a threshold value that depends on the Fe or Py layer thickness. Their thickness-dependent behaviors can be quantitatively described by a phenomenological model that takes into account the finite-size effect of the antiferromagnet on exchange coupling. The anisotropy energy extracted from the model and the thermal stability of perpendicular magnetization enhanced with the increase of the Mn underlayer further demonstrate the exchange coupling nature.

UR - http://www.scopus.com/inward/record.url?scp=79961070493&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79961070493&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.83.104417

DO - 10.1103/PhysRevB.83.104417

M3 - Article

AN - SCOPUS:79961070493

VL - 83

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 1098-0121

IS - 10

M1 - 104417

ER -