{"date_created":"2022-01-28T10:28:35Z","oa":1,"abstract":[{"lang":"eng","text":"We report the observation of a quantized anomalous Hall effect in a moiré heterostructure consisting of twisted bilayer graphene aligned to an encapsulating hBN substrate. The effect occurs at a density of 3 electrons per superlattice unit cell, where we observe magnetic hysteresis and a Hall resistance quantized to within 0.1% of the resistance quantum at temperatures as high as 3K. In this first of 3 talks, I will describe the fabrication procedure for our device as well as basic transport characterization measurements. I will introduce the phenomenology of twisted bilayer graphene and present evidence for hBN alignment as manifested in the hierarchy of symmetry-breaking gaps and anomalous magnetoresistance."}],"publisher":"American Physical Society","intvolume":"        65","author":[{"last_name":"Zhang","full_name":"Zhang, Yuxuan","first_name":"Yuxuan"},{"last_name":"Serlin","full_name":"Serlin, Marec","first_name":"Marec"},{"first_name":"Charles","full_name":"Tschirhart, Charles","last_name":"Tschirhart"},{"last_name":"Polshyn","full_name":"Polshyn, Hryhoriy","orcid":"0000-0001-8223-8896","id":"edfc7cb1-526e-11ec-b05a-e6ecc27e4e48","first_name":"Hryhoriy"},{"first_name":"Jiacheng","full_name":"Zhu, Jiacheng","last_name":"Zhu"},{"last_name":"Balents","full_name":"Balents, Leon","first_name":"Leon"},{"last_name":"Huber","full_name":"Huber, Martin E.","first_name":"Martin E."},{"first_name":"Takashi","full_name":"Taniguchi, Takashi","last_name":"Taniguchi"},{"full_name":"Watanabe, Kenji","last_name":"Watanabe","first_name":"Kenji"},{"first_name":"Andrea","full_name":"Young, Andrea","last_name":"Young"}],"article_processing_charge":"No","external_id":{"arxiv":["1907.00261"]},"conference":{"location":"Denver, CO, United States","end_date":"2020-03-06","name":"APS: American Physical Society","start_date":"2020-03-02"},"title":"Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport","oa_version":"Published Version","related_material":{"record":[{"status":"public","id":"10619","relation":"other"}]},"issue":"1","status":"public","acknowledgement":"I would like to thank the MURI program, Sloan foundation, AFOSR, and ARO for their generous support of this work.","year":"2020","publication":"APS March Meeting 2020","type":"conference","citation":{"apa":"Zhang, Y., Serlin, M., Tschirhart, C., Polshyn, H., Zhu, J., Balents, L., … Young, A. (2020). Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport. In <i>APS March Meeting 2020</i> (Vol. 65). Denver, CO, United States: American Physical Society.","ista":"Zhang Y, Serlin M, Tschirhart C, Polshyn H, Zhu J, Balents L, Huber ME, Taniguchi T, Watanabe K, Young A. 2020. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport. APS March Meeting 2020. APS: American Physical Society, Bulletin of the American Physical Society, vol. 65, B59.00012.","ama":"Zhang Y, Serlin M, Tschirhart C, et al. Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport. In: <i>APS March Meeting 2020</i>. Vol 65. American Physical Society; 2020.","ieee":"Y. Zhang <i>et al.</i>, “Intrinsic quantized anomalous Hall effect in a moiré heterostructure, part I: Device fabrication and transport,” in <i>APS March Meeting 2020</i>, Denver, CO, United States, 2020, vol. 65, no. 1.","chicago":"Zhang, Yuxuan, Marec Serlin, Charles Tschirhart, Hryhoriy Polshyn, Jiacheng Zhu, Leon Balents, Martin E. Huber, Takashi Taniguchi, Kenji Watanabe, and Andrea Young. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part I: Device Fabrication and Transport.” In <i>APS March Meeting 2020</i>, Vol. 65. American Physical Society, 2020.","short":"Y. Zhang, M. Serlin, C. Tschirhart, H. Polshyn, J. Zhu, L. Balents, M.E. Huber, T. Taniguchi, K. Watanabe, A. Young, in:, APS March Meeting 2020, American Physical Society, 2020.","mla":"Zhang, Yuxuan, et al. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure, Part I: Device Fabrication and Transport.” <i>APS March Meeting 2020</i>, vol. 65, no. 1, B59.00012, American Physical Society, 2020."},"date_published":"2020-03-01T00:00:00Z","volume":65,"_id":"10697","alternative_title":["Bulletin of the American Physical Society"],"month":"03","day":"01","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","quality_controlled":"1","article_number":"B59.00012","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2023-02-21T15:57:52Z","extern":"1","main_file_link":[{"url":"https://meetings.aps.org/Meeting/MAR20/Session/B59.12","open_access":"1"}]}