首页|Growth and characterization of Bi(110)/CrTe2 heterostructures:Exploring interplay between magnetism and topology

Growth and characterization of Bi(110)/CrTe2 heterostructures:Exploring interplay between magnetism and topology

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The interplay between topology and magnetism is vital for realizing exotic quantum phenomena,significant examples including quantum anomalous Hall effect,axion insulators,and high-order topological states.These states host great poten-tial for future applications in high-speed and low-consumption electronic devices.Despite being extensively investigated,practical platforms are still scarce.In this work,with molecular beam epitaxy(MBE),we provide the first experimental report on high-quality Bi(l10)/CrTe2 magnetic heterostructure.By employing in-situ high-resolution scanning tunneling microscopy,we are able to examine the interaction between magnetism and topology.There is a potential edge state at an energy level above the Fermi level,but no edge states observed near the Fermi level The absence of high-order topolog-ical corner states near EF highlights the importance of lattice matching and interface engineering in designing high-order topological states.Our study provides key insights into the interplay between two-dimensional magnetic and topological materials and offers an important dimension for engineering magnetic topological states.

bismuth(110)chromium ditelluride(CrTe2)topological statesscanning tunneling microscopy(STM)

袁震宇、杨发枝、吕佰晴、黄耀波、钱天、徐金朋、丁洪

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Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences(CAS),Beijing 100190,China

School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China

Tsung-Dao Lee Institute and School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China

Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204,China

Songshan Lake Materials Laboratory,Dongguan 523808,China

CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100190,China

School of Physics,Shandong University,Ji'nan 250100 China

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2024

10.1088/1674-1056/ad082a

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(2)
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