Magnetization reversal behavior of GaMnAs film grown on Si substrate investigated by planar Hall measurements

Sangyeop Lee, Jaehyuk Won, Jinsik Shin, Hakjoon Lee, Taehee Yoo, Sang Hoon Lee, Xinyu Liu, Jacek K. Furdyna

Research output: Contribution to journalArticle

Abstract

Magnetization reversal in a GaMnAs film grown on a Si substrate was investigated using planar Hall effect measurements. The angular dependence of the planar Hall resistance (PHR) shows that cubic crystalline anisotropy along the h100i directions dominates the film's magnetic anisotropy. However, the magnetization reversal behavior varies significantly with the applied field strength: as the magnetic field strength decreases, the PHR amplitude decreases, and hysteresis appears in data obtained with clockwise and counterclockwise rotation of the field directions. Furthermore, asymmetry in the PHR amplitude between the two opposite field directions appears during the angle scan and increases with decreasing field strength. We show that these features arise from a broad distribution of magnetic domains having different pinning fields.

Original languageEnglish
Article number063007
JournalApplied Physics Express
Volume7
Issue number6
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Magnetization reversal
Hall resistance
field strength
magnetization
Magnetic domains
Magnetic anisotropy
Hall effect
Substrates
Hysteresis
anisotropy
Anisotropy
magnetic films
magnetic domains
Magnetic fields
Crystalline materials
hysteresis
asymmetry
magnetic fields

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Magnetization reversal behavior of GaMnAs film grown on Si substrate investigated by planar Hall measurements. / Lee, Sangyeop; Won, Jaehyuk; Shin, Jinsik; Lee, Hakjoon; Yoo, Taehee; Lee, Sang Hoon; Liu, Xinyu; Furdyna, Jacek K.

In: Applied Physics Express, Vol. 7, No. 6, 063007, 01.01.2014.

Research output: Contribution to journalArticle

Lee, Sangyeop ; Won, Jaehyuk ; Shin, Jinsik ; Lee, Hakjoon ; Yoo, Taehee ; Lee, Sang Hoon ; Liu, Xinyu ; Furdyna, Jacek K. / Magnetization reversal behavior of GaMnAs film grown on Si substrate investigated by planar Hall measurements. In: Applied Physics Express. 2014 ; Vol. 7, No. 6.
@article{eb90d92e21fa4326a97f2ea7e7c024c0,
title = "Magnetization reversal behavior of GaMnAs film grown on Si substrate investigated by planar Hall measurements",
abstract = "Magnetization reversal in a GaMnAs film grown on a Si substrate was investigated using planar Hall effect measurements. The angular dependence of the planar Hall resistance (PHR) shows that cubic crystalline anisotropy along the h100i directions dominates the film's magnetic anisotropy. However, the magnetization reversal behavior varies significantly with the applied field strength: as the magnetic field strength decreases, the PHR amplitude decreases, and hysteresis appears in data obtained with clockwise and counterclockwise rotation of the field directions. Furthermore, asymmetry in the PHR amplitude between the two opposite field directions appears during the angle scan and increases with decreasing field strength. We show that these features arise from a broad distribution of magnetic domains having different pinning fields.",
author = "Sangyeop Lee and Jaehyuk Won and Jinsik Shin and Hakjoon Lee and Taehee Yoo and Lee, {Sang Hoon} and Xinyu Liu and Furdyna, {Jacek K.}",
year = "2014",
month = "1",
day = "1",
doi = "10.7567/APEX.7.063007",
language = "English",
volume = "7",
journal = "Applied Physics Express",
issn = "1882-0778",
publisher = "Japan Society of Applied Physics",
number = "6",

}

TY - JOUR

T1 - Magnetization reversal behavior of GaMnAs film grown on Si substrate investigated by planar Hall measurements

AU - Lee, Sangyeop

AU - Won, Jaehyuk

AU - Shin, Jinsik

AU - Lee, Hakjoon

AU - Yoo, Taehee

AU - Lee, Sang Hoon

AU - Liu, Xinyu

AU - Furdyna, Jacek K.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Magnetization reversal in a GaMnAs film grown on a Si substrate was investigated using planar Hall effect measurements. The angular dependence of the planar Hall resistance (PHR) shows that cubic crystalline anisotropy along the h100i directions dominates the film's magnetic anisotropy. However, the magnetization reversal behavior varies significantly with the applied field strength: as the magnetic field strength decreases, the PHR amplitude decreases, and hysteresis appears in data obtained with clockwise and counterclockwise rotation of the field directions. Furthermore, asymmetry in the PHR amplitude between the two opposite field directions appears during the angle scan and increases with decreasing field strength. We show that these features arise from a broad distribution of magnetic domains having different pinning fields.

AB - Magnetization reversal in a GaMnAs film grown on a Si substrate was investigated using planar Hall effect measurements. The angular dependence of the planar Hall resistance (PHR) shows that cubic crystalline anisotropy along the h100i directions dominates the film's magnetic anisotropy. However, the magnetization reversal behavior varies significantly with the applied field strength: as the magnetic field strength decreases, the PHR amplitude decreases, and hysteresis appears in data obtained with clockwise and counterclockwise rotation of the field directions. Furthermore, asymmetry in the PHR amplitude between the two opposite field directions appears during the angle scan and increases with decreasing field strength. We show that these features arise from a broad distribution of magnetic domains having different pinning fields.

UR - http://www.scopus.com/inward/record.url?scp=84904684623&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904684623&partnerID=8YFLogxK

U2 - 10.7567/APEX.7.063007

DO - 10.7567/APEX.7.063007

M3 - Article

AN - SCOPUS:84904684623

VL - 7

JO - Applied Physics Express

JF - Applied Physics Express

SN - 1882-0778

IS - 6

M1 - 063007

ER -