[{"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2101.08277","open_access":"1"}],"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","type":"journal_article","date_published":"2022-03-17T00:00:00Z","publication_identifier":{"issn":["2469-9969"]},"oa":1,"language":[{"iso":"eng"}],"publication":"Physical Review B","oa_version":"Preprint","article_number":"L121407","month":"03","acknowledgement":"We are grateful to Takahiro Morimoto and Zhanybek Alpichshev for fruitful discussions. MD was supported by Austrian Agency for International Cooperation in Education and Research (OeAD-GmbH) and by the John Seo Fellowship at MIT. HI was supported by JSPS KAKENHI Grant Numbers JP19K14649 and JP18H03676, and by UTokyo Global Activity Support Program for\r\nYoung Researchers.","volume":105,"year":"2022","citation":{"ista":"Davydova M, Serbyn M, Ishizuka H. 2022. Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials. Physical Review B. 105, L121407.","short":"M. Davydova, M. Serbyn, H. Ishizuka, Physical Review B 105 (2022).","mla":"Davydova, Margarita, et al. “Symmetry-Allowed Nonlinear Orbital Response across the Topological Phase Transition in Centrosymmetric Materials.” <i>Physical Review B</i>, vol. 105, L121407, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">10.1103/PhysRevB.105.L121407</a>.","ieee":"M. Davydova, M. Serbyn, and H. Ishizuka, “Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials,” <i>Physical Review B</i>, vol. 105. American Physical Society, 2022.","chicago":"Davydova, Margarita, Maksym Serbyn, and Hiroaki Ishizuka. “Symmetry-Allowed Nonlinear Orbital Response across the Topological Phase Transition in Centrosymmetric Materials.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">https://doi.org/10.1103/PhysRevB.105.L121407</a>.","ama":"Davydova M, Serbyn M, Ishizuka H. Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials. <i>Physical Review B</i>. 2022;105. doi:<a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">10.1103/PhysRevB.105.L121407</a>","apa":"Davydova, M., Serbyn, M., &#38; Ishizuka, H. (2022). Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">https://doi.org/10.1103/PhysRevB.105.L121407</a>"},"date_updated":"2023-08-03T06:09:56Z","external_id":{"arxiv":["2101.08277"],"isi":["000800752500001"]},"isi":1,"day":"17","arxiv":1,"doi":"10.1103/PhysRevB.105.L121407","abstract":[{"text":"Nonlinear optical responses are commonly used as a probe for studying the electronic properties of materials. For topological materials, studies thus far focused on photogalvanic electric currents, which are forbidden in centrosymmetric materials because they require broken inversion symmetry. In this Letter, we propose a class of symmetry-allowed responses for inversion-symmetric topological insulators with two doubly degenerate bands. We consider a specific example of such a response, the orbital current, and show that the sign of the response reflects the Z2 topological index, i.e., the orbital current changes sign at the transition between trivial and topological insulator phases. This is illustrated in two models of topological insulators: the Bernevig-Hughes-Zhang model and the 1T′ phase of transition metal dichalcogenides.","lang":"eng"}],"quality_controlled":"1","publisher":"American Physical Society","article_type":"letter_note","scopus_import":"1","_id":"10863","author":[{"full_name":"Davydova, Margarita","first_name":"Margarita","last_name":"Davydova"},{"orcid":"0000-0002-2399-5827","full_name":"Serbyn, Maksym","first_name":"Maksym","last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Ishizuka, Hiroaki","first_name":"Hiroaki","last_name":"Ishizuka"}],"date_created":"2022-03-18T10:20:46Z","article_processing_charge":"No","department":[{"_id":"MaSe"}],"publication_status":"published","intvolume":"       105","title":"Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials"},{"publication":"Physical Review B","month":"06","article_number":"220301","oa_version":"Preprint","language":[{"iso":"eng"}],"date_published":"2018-06-04T00:00:00Z","type":"journal_article","oa":1,"publication_identifier":{"issn":["2469-9950","2469-9969"]},"status":"public","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"url":"https://arxiv.org/abs/1802.02243","open_access":"1"}],"author":[{"full_name":"Rosenthal, Eric I.","last_name":"Rosenthal","first_name":"Eric I."},{"full_name":"Ehrlich, Nicole K.","first_name":"Nicole K.","last_name":"Ehrlich"},{"last_name":"Rudner","first_name":"Mark S.","full_name":"Rudner, Mark S."},{"first_name":"Andrew P","last_name":"Higginbotham","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Lehnert, K. W.","first_name":"K. W.","last_name":"Lehnert"}],"issue":"22","_id":"6369","title":"Topological phase transition measured in a dissipative metamaterial","intvolume":"        97","publication_status":"published","date_created":"2019-05-03T09:29:49Z","quality_controlled":"1","publisher":"American Physical Society (APS)","external_id":{"arxiv":["1802.02243"]},"date_updated":"2021-01-12T08:07:16Z","year":"2018","citation":{"apa":"Rosenthal, E. I., Ehrlich, N. K., Rudner, M. S., Higginbotham, A. P., &#38; Lehnert, K. W. (2018). Topological phase transition measured in a dissipative metamaterial. <i>Physical Review B</i>. American Physical Society (APS). <a href=\"https://doi.org/10.1103/physrevb.97.220301\">https://doi.org/10.1103/physrevb.97.220301</a>","ama":"Rosenthal EI, Ehrlich NK, Rudner MS, Higginbotham AP, Lehnert KW. Topological phase transition measured in a dissipative metamaterial. <i>Physical Review B</i>. 2018;97(22). doi:<a href=\"https://doi.org/10.1103/physrevb.97.220301\">10.1103/physrevb.97.220301</a>","chicago":"Rosenthal, Eric I., Nicole K. Ehrlich, Mark S. Rudner, Andrew P Higginbotham, and K. W. Lehnert. “Topological Phase Transition Measured in a Dissipative Metamaterial.” <i>Physical Review B</i>. American Physical Society (APS), 2018. <a href=\"https://doi.org/10.1103/physrevb.97.220301\">https://doi.org/10.1103/physrevb.97.220301</a>.","ieee":"E. I. Rosenthal, N. K. Ehrlich, M. S. Rudner, A. P. Higginbotham, and K. W. Lehnert, “Topological phase transition measured in a dissipative metamaterial,” <i>Physical Review B</i>, vol. 97, no. 22. American Physical Society (APS), 2018.","mla":"Rosenthal, Eric I., et al. “Topological Phase Transition Measured in a Dissipative Metamaterial.” <i>Physical Review B</i>, vol. 97, no. 22, 220301, American Physical Society (APS), 2018, doi:<a href=\"https://doi.org/10.1103/physrevb.97.220301\">10.1103/physrevb.97.220301</a>.","short":"E.I. Rosenthal, N.K. Ehrlich, M.S. Rudner, A.P. Higginbotham, K.W. Lehnert, Physical Review B 97 (2018).","ista":"Rosenthal EI, Ehrlich NK, Rudner MS, Higginbotham AP, Lehnert KW. 2018. Topological phase transition measured in a dissipative metamaterial. Physical Review B. 97(22), 220301."},"abstract":[{"lang":"eng","text":"We construct a metamaterial from radio-frequency harmonic oscillators, and find two topologically distinct phases resulting from dissipation engineered into the system. These phases are distinguished by a quantized value of bulk energy transport. The impulse response of our circuit is measured and used to reconstruct the band structure and winding number of circuit eigenfunctions around a dark mode. Our results demonstrate that dissipative topological transport can occur in a wider class of physical systems than considered before."}],"arxiv":1,"doi":"10.1103/physrevb.97.220301","day":"04","extern":"1","volume":97},{"citation":{"ieee":"M. Nauman <i>et al.</i>, “In-plane magnetic anisotropy in strontium iridate Sr2IrO4,” <i>Physical Review B</i>, vol. 96, no. 15. American Physical Society, 2017.","chicago":"Nauman, Muhammad, Yunjeong Hong, Tayyaba Hussain, M. S. Seo, S. Y. Park, N. Lee, Y. J. Choi, Woun Kang, and Younjung Jo. “In-Plane Magnetic Anisotropy in Strontium Iridate Sr2IrO4.” <i>Physical Review B</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/physrevb.96.155102\">https://doi.org/10.1103/physrevb.96.155102</a>.","apa":"Nauman, M., Hong, Y., Hussain, T., Seo, M. S., Park, S. Y., Lee, N., … Jo, Y. (2017). In-plane magnetic anisotropy in strontium iridate Sr2IrO4. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.96.155102\">https://doi.org/10.1103/physrevb.96.155102</a>","ama":"Nauman M, Hong Y, Hussain T, et al. In-plane magnetic anisotropy in strontium iridate Sr2IrO4. <i>Physical Review B</i>. 2017;96(15). doi:<a href=\"https://doi.org/10.1103/physrevb.96.155102\">10.1103/physrevb.96.155102</a>","ista":"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 Sr2IrO4. Physical Review B. 96(15), 155102.","mla":"Nauman, Muhammad, et al. “In-Plane Magnetic Anisotropy in Strontium Iridate Sr2IrO4.” <i>Physical Review B</i>, vol. 96, no. 15, 155102, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/physrevb.96.155102\">10.1103/physrevb.96.155102</a>.","short":"M. Nauman, Y. Hong, T. Hussain, M.S. Seo, S.Y. Park, N. Lee, Y.J. Choi, W. Kang, Y. Jo, Physical Review B 96 (2017)."},"year":"2017","date_updated":"2021-02-03T12:53:00Z","type":"journal_article","date_published":"2017-10-01T00:00:00Z","day":"01","publication_identifier":{"issn":["2469-9950","2469-9969"]},"doi":"10.1103/physrevb.96.155102","abstract":[{"text":"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 a b 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.","lang":"eng"}],"volume":96,"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","publication":"Physical Review B","_id":"9065","issue":"15","author":[{"orcid":"0000-0002-2111-4846","full_name":"Nauman, Muhammad","first_name":"Muhammad","last_name":"Nauman","id":"32c21954-2022-11eb-9d5f-af9f93c24e71"},{"full_name":"Hong, Yunjeong","last_name":"Hong","first_name":"Yunjeong"},{"first_name":"Tayyaba","last_name":"Hussain","full_name":"Hussain, Tayyaba"},{"last_name":"Seo","first_name":"M. S.","full_name":"Seo, M. S."},{"full_name":"Park, S. Y.","first_name":"S. Y.","last_name":"Park"},{"full_name":"Lee, N.","last_name":"Lee","first_name":"N."},{"full_name":"Choi, Y. J.","first_name":"Y. J.","last_name":"Choi"},{"last_name":"Kang","first_name":"Woun","full_name":"Kang, Woun"},{"last_name":"Jo","first_name":"Younjung","full_name":"Jo, Younjung"}],"article_processing_charge":"No","date_created":"2021-02-02T15:49:21Z","oa_version":"None","publication_status":"published","intvolume":"        96","article_number":"155102","month":"10","title":"In-plane magnetic anisotropy in strontium iridate Sr2IrO4","quality_controlled":"1","language":[{"iso":"eng"}],"publisher":"American Physical Society","article_type":"original"}]