In-plane magnetic anisotropy in strontium iridate S r2Ir O4

Muhammad Nauman, Yunjeong Hong, Tayyaba Hussain, M. S. Seo, S. Y. Park, N. Lee, Young Jai Choi, Woun Kang, Younjung Jo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Magnetic anisotropy in strontium iridate (Sr2IrO4) is found to be large because of the strong spin-orbit interactions. In our work, we studied the in-plane magnetic anisotropy of Sr2IrO4 and traced the anisotropic exchange interactions between the isospins in the crystal. The magnetic-field-dependent torque τ(H) showed a prominent transition from the canted antiferromagnetic state to the weak ferromagnetic (WFM) state. A comprehensive analysis was conducted to examine the isotropic and anisotropic regimes and probe the easy magnetization axis along the ab plane. The angle-dependent torque τ(θ) revealed a deviation from the sinusoidal behavior, and small differences in hysteresis were observed around 0° and 90° in the low-magnetic-field regime. This indicates that the orientation of the easy axis of the FM component is along the b axis, where the antiferromagnetic to WFM spin-flop transition occurs. We compared the coefficients of the magnetic susceptibility tensors and captured the anisotropy of the material. The in-plane τ(θ) revealed a tendency toward isotropic behavior for fields with values above the field value of the WFM transition.

Original languageEnglish
Article number155102
JournalPhysical Review B
Volume96
Issue number15
DOIs
Publication statusPublished - 2017 Oct 2

Fingerprint

Strontium
Magnetic anisotropy
strontium
Torque
Magnetic fields
anisotropy
torque
Exchange interactions
Magnetic susceptibility
Tensors
Hysteresis
Magnetization
Orbits
Anisotropy
spin-orbit interactions
magnetic fields
frequency modulation
Crystals
tendencies
hysteresis

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nauman, M., Hong, Y., Hussain, T., Seo, M. S., Park, S. Y., Lee, N., ... Jo, Y. (2017). In-plane magnetic anisotropy in strontium iridate S r2Ir O4. Physical Review B, 96(15), [155102]. https://doi.org/10.1103/PhysRevB.96.155102
Nauman, Muhammad ; Hong, Yunjeong ; Hussain, Tayyaba ; Seo, M. S. ; Park, S. Y. ; Lee, N. ; Choi, Young Jai ; Kang, Woun ; Jo, Younjung. / In-plane magnetic anisotropy in strontium iridate S r2Ir O4. In: Physical Review B. 2017 ; Vol. 96, No. 15.
@article{1e1e2c7d2ac242128f901a858d8fa2b9,
title = "In-plane magnetic anisotropy in strontium iridate S r2Ir O4",
abstract = "Magnetic anisotropy in strontium iridate (Sr2IrO4) is found to be large because of the strong spin-orbit interactions. In our work, we studied the in-plane magnetic anisotropy of Sr2IrO4 and traced the anisotropic exchange interactions between the isospins in the crystal. The magnetic-field-dependent torque τ(H) showed a prominent transition from the canted antiferromagnetic state to the weak ferromagnetic (WFM) state. A comprehensive analysis was conducted to examine the isotropic and anisotropic regimes and probe the easy magnetization axis along the ab plane. The angle-dependent torque τ(θ) revealed a deviation from the sinusoidal behavior, and small differences in hysteresis were observed around 0° and 90° in the low-magnetic-field regime. This indicates that the orientation of the easy axis of the FM component is along the b axis, where the antiferromagnetic to WFM spin-flop transition occurs. We compared the coefficients of the magnetic susceptibility tensors and captured the anisotropy of the material. The in-plane τ(θ) revealed a tendency toward isotropic behavior for fields with values above the field value of the WFM transition.",
author = "Muhammad Nauman and Yunjeong Hong and Tayyaba Hussain and Seo, {M. S.} and Park, {S. Y.} and N. Lee and Choi, {Young Jai} and Woun Kang and Younjung Jo",
year = "2017",
month = "10",
day = "2",
doi = "10.1103/PhysRevB.96.155102",
language = "English",
volume = "96",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "15",

}

Nauman, M, Hong, Y, Hussain, T, Seo, MS, Park, SY, Lee, N, Choi, YJ, Kang, W & Jo, Y 2017, 'In-plane magnetic anisotropy in strontium iridate S r2Ir O4', Physical Review B, vol. 96, no. 15, 155102. https://doi.org/10.1103/PhysRevB.96.155102

In-plane magnetic anisotropy in strontium iridate S r2Ir O4. / Nauman, Muhammad; Hong, Yunjeong; Hussain, Tayyaba; Seo, M. S.; Park, S. Y.; Lee, N.; Choi, Young Jai; Kang, Woun; Jo, Younjung.

In: Physical Review B, Vol. 96, No. 15, 155102, 02.10.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - In-plane magnetic anisotropy in strontium iridate S r2Ir O4

AU - Nauman, Muhammad

AU - Hong, Yunjeong

AU - Hussain, Tayyaba

AU - Seo, M. S.

AU - Park, S. Y.

AU - Lee, N.

AU - Choi, Young Jai

AU - Kang, Woun

AU - Jo, Younjung

PY - 2017/10/2

Y1 - 2017/10/2

N2 - Magnetic anisotropy in strontium iridate (Sr2IrO4) is found to be large because of the strong spin-orbit interactions. In our work, we studied the in-plane magnetic anisotropy of Sr2IrO4 and traced the anisotropic exchange interactions between the isospins in the crystal. The magnetic-field-dependent torque τ(H) showed a prominent transition from the canted antiferromagnetic state to the weak ferromagnetic (WFM) state. A comprehensive analysis was conducted to examine the isotropic and anisotropic regimes and probe the easy magnetization axis along the ab plane. The angle-dependent torque τ(θ) revealed a deviation from the sinusoidal behavior, and small differences in hysteresis were observed around 0° and 90° in the low-magnetic-field regime. This indicates that the orientation of the easy axis of the FM component is along the b axis, where the antiferromagnetic to WFM spin-flop transition occurs. We compared the coefficients of the magnetic susceptibility tensors and captured the anisotropy of the material. The in-plane τ(θ) revealed a tendency toward isotropic behavior for fields with values above the field value of the WFM transition.

AB - Magnetic anisotropy in strontium iridate (Sr2IrO4) is found to be large because of the strong spin-orbit interactions. In our work, we studied the in-plane magnetic anisotropy of Sr2IrO4 and traced the anisotropic exchange interactions between the isospins in the crystal. The magnetic-field-dependent torque τ(H) showed a prominent transition from the canted antiferromagnetic state to the weak ferromagnetic (WFM) state. A comprehensive analysis was conducted to examine the isotropic and anisotropic regimes and probe the easy magnetization axis along the ab plane. The angle-dependent torque τ(θ) revealed a deviation from the sinusoidal behavior, and small differences in hysteresis were observed around 0° and 90° in the low-magnetic-field regime. This indicates that the orientation of the easy axis of the FM component is along the b axis, where the antiferromagnetic to WFM spin-flop transition occurs. We compared the coefficients of the magnetic susceptibility tensors and captured the anisotropy of the material. The in-plane τ(θ) revealed a tendency toward isotropic behavior for fields with values above the field value of the WFM transition.

UR - http://www.scopus.com/inward/record.url?scp=85038633532&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038633532&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.96.155102

DO - 10.1103/PhysRevB.96.155102

M3 - Article

VL - 96

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 15

M1 - 155102

ER -

Nauman M, Hong Y, Hussain T, Seo MS, Park SY, Lee N et al. In-plane magnetic anisotropy in strontium iridate S r2Ir O4. Physical Review B. 2017 Oct 2;96(15). 155102. https://doi.org/10.1103/PhysRevB.96.155102