eprintid: 10175107 rev_number: 7 eprint_status: archive userid: 699 dir: disk0/10/17/51/07 datestamp: 2023-08-15 12:40:19 lastmod: 2023-08-15 12:40:19 status_changed: 2023-08-15 12:40:19 type: article metadata_visibility: show sword_depositor: 699 creators_name: Wu, L creators_name: Wang, W creators_name: Assefa, TA creators_name: Suzana, AF creators_name: Diao, J creators_name: Zhao, H creators_name: Cao, G creators_name: Harder, RJ creators_name: Cha, W creators_name: Kisslinger, K creators_name: Dean, MPM creators_name: Robinson, IK title: Anisotropy of antiferromagnetic domains in a spin-orbit Mott insulator ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F64 note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. abstract: The temperature-dependent behavior of magnetic domains plays an essential role in the magnetic properties of materials, leading to widespread applications. However, experimental methods to access the three-dimensional (3D) magnetic domain structures are very limited, especially for antiferromagnets. Over the past decades, the spin-orbit Mott insulator iridate Formula Presented has attracted particular attention because of its interesting magnetic structure and analogy to superconducting cuprates. Here, we apply resonant x-ray magnetic Bragg coherent diffraction imaging to track the real-space 3D evolution of antiferromagnetic ordering inside a Formula Presented single crystal as a function of temperature, finding that the antiferromagnetic domain shows anisotropic changes. The anisotropy of the domain shape reveals the underlying anisotropy of the antiferromagnetic coupling strength within Formula Presented. These results demonstrate the high potential significance of 3D domain imaging in magnetism research. date: 2023-07-01 date_type: published publisher: American Physical Society (APS) official_url: https://doi.org/10.1103/PhysRevB.108.L020403 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2043549 doi: 10.1103/PhysRevB.108.L020403 lyricists_name: Robinson, Ian lyricists_id: IKROB22 actors_name: Robinson, Ian actors_id: IKROB22 actors_role: owner full_text_status: public publication: Physical Review B volume: 108 number: 2 article_number: L020403 issn: 2469-9950 citation: Wu, L; Wang, W; Assefa, TA; Suzana, AF; Diao, J; Zhao, H; Cao, G; ... Robinson, IK; + view all <#> Wu, L; Wang, W; Assefa, TA; Suzana, AF; Diao, J; Zhao, H; Cao, G; Harder, RJ; Cha, W; Kisslinger, K; Dean, MPM; Robinson, IK; - view fewer <#> (2023) Anisotropy of antiferromagnetic domains in a spin-orbit Mott insulator. Physical Review B , 108 (2) , Article L020403. 10.1103/PhysRevB.108.L020403 <https://doi.org/10.1103/PhysRevB.108.L020403>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10175107/1/LL_Sr2IrO4_PhysRevB_2023.pdf