---
_id: '10735'
abstract:
- lang: eng
  text: Magnetic anisotropy in strontium iridate (Sr2IrO4) is essential because of
    its strong spin–orbit coupling and crystal field effect. In this paper, we present
    a detailed mapping of the out-of-plane (OOP) magnetic anisotropy in Sr2IrO4 for
    different sample orientations using torque magnetometry measurements in the low-magnetic-field
    region before the isospins are completely ordered. Dominant in-plane anisotropy
    was identified at low fields, confirming the b axis as an easy magnetization axis.
    Based on the fitting analysis of the strong uniaxial magnetic anisotropy, we observed
    that the main anisotropic effect arises from a spin–orbit-coupled magnetic exchange
    interaction affecting the OOP interaction. The effect of interlayer exchange interaction
    results in additional anisotropic terms owing to the tilting of the isospins.
    The results are relevant for understanding OOP magnetic anisotropy and provide
    a new way to analyze the effects of spin–orbit-coupling and interlayer magnetic
    exchange interactions. This study provides insight into the understanding of bulk
    magnetic, magnetotransport, and spintronic behavior on Sr2IrO4 for future studies.
acknowledgement: 'YJ was supported by the National Research Foundation of Korea (NRF)
  (Grant Nos. NRF-2018K2A9A1A06069211 and NRF-2019R1A2C1089017). The work at Yonsei
  was supported by the NRF (Grant Nos. NRF-2017R1A5A-1014862 (SRC program: vdWMRC
  center), NRF-2019R1A2C2002601, and NRF-2021R1A2C1006375). WK acknowledges the support
  by the NRF (Grant Nos. 2018R1D1A1B07050087, 2018R1A6A1A03025340).'
article_number: '135802'
article_processing_charge: No
article_type: original
author:
- first_name: Muhammad
  full_name: Nauman, Muhammad
  id: 32c21954-2022-11eb-9d5f-af9f93c24e71
  last_name: Nauman
  orcid: 0000-0002-2111-4846
- first_name: Tayyaba
  full_name: Hussain, Tayyaba
  last_name: Hussain
- first_name: Joonyoung
  full_name: Choi, Joonyoung
  last_name: Choi
- first_name: Nara
  full_name: Lee, Nara
  last_name: Lee
- first_name: Young Jai
  full_name: Choi, Young Jai
  last_name: Choi
- first_name: Woun
  full_name: Kang, Woun
  last_name: Kang
- first_name: Younjung
  full_name: Jo, Younjung
  last_name: Jo
citation:
  ama: 'Nauman M, Hussain T, Choi J, et al. Low-field magnetic anisotropy of Sr2IrO4.
    <i>Journal of physics: Condensed matter</i>. 2022;34(13). doi:<a href="https://doi.org/10.1088/1361-648X/ac484d">10.1088/1361-648X/ac484d</a>'
  apa: 'Nauman, M., Hussain, T., Choi, J., Lee, N., Choi, Y. J., Kang, W., &#38; Jo,
    Y. (2022). Low-field magnetic anisotropy of Sr2IrO4. <i>Journal of Physics: Condensed
    Matter</i>. IOP Publishing. <a href="https://doi.org/10.1088/1361-648X/ac484d">https://doi.org/10.1088/1361-648X/ac484d</a>'
  chicago: 'Nauman, Muhammad, Tayyaba Hussain, Joonyoung Choi, Nara Lee, Young Jai
    Choi, Woun Kang, and Younjung Jo. “Low-Field Magnetic Anisotropy of Sr2IrO4.”
    <i>Journal of Physics: Condensed Matter</i>. IOP Publishing, 2022. <a href="https://doi.org/10.1088/1361-648X/ac484d">https://doi.org/10.1088/1361-648X/ac484d</a>.'
  ieee: 'M. Nauman <i>et al.</i>, “Low-field magnetic anisotropy of Sr2IrO4,” <i>Journal
    of physics: Condensed matter</i>, vol. 34, no. 13. IOP Publishing, 2022.'
  ista: 'Nauman M, Hussain T, Choi J, Lee N, Choi YJ, Kang W, Jo Y. 2022. Low-field
    magnetic anisotropy of Sr2IrO4. Journal of physics: Condensed matter. 34(13),
    135802.'
  mla: 'Nauman, Muhammad, et al. “Low-Field Magnetic Anisotropy of Sr2IrO4.” <i>Journal
    of Physics: Condensed Matter</i>, vol. 34, no. 13, 135802, IOP Publishing, 2022,
    doi:<a href="https://doi.org/10.1088/1361-648X/ac484d">10.1088/1361-648X/ac484d</a>.'
  short: 'M. Nauman, T. Hussain, J. Choi, N. Lee, Y.J. Choi, W. Kang, Y. Jo, Journal
    of Physics: Condensed Matter 34 (2022).'
date_created: 2022-02-06T23:01:31Z
date_published: 2022-01-20T00:00:00Z
date_updated: 2023-08-02T14:12:01Z
day: '20'
ddc:
- '530'
department:
- _id: KiMo
doi: 10.1088/1361-648X/ac484d
external_id:
  isi:
  - '000775191800001'
  pmid:
  - '34986467'
file:
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  date_created: 2022-02-07T10:35:28Z
  date_updated: 2022-02-07T10:35:28Z
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file_date_updated: 2022-02-07T10:35:28Z
has_accepted_license: '1'
intvolume: '        34'
isi: 1
issue: '13'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
publication: 'Journal of physics: Condensed matter'
publication_identifier:
  eissn:
  - 1361-648X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Low-field magnetic anisotropy of Sr2IrO4
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 34
year: '2022'
...