Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T00: Poster Session III (1pm-4pm PST)
1:00 PM,
Thursday, March 9, 2023
Room: Exhibit Hall (Forum Ballroom)
Sponsoring
Unit:
APS
Abstract: T00.00143 : Molecular beam epitaxy growth and Scanning Tunneling Microscope study of FeSn-type kagome metals*
Presenter:
Jiangchang Zheng
(The Hong Kong University of Science and Technology)
Authors:
Jiangchang Zheng
(The Hong Kong University of Science and Technology)
Berthold Jaeck
(The Hong Kong University of Science and Technology)
Caiyun Chen
(The Hong Kong University of Science and Technology)
Soumya Sankar
(The Hong Kong University of Science and Technology)
Yihsin Lin
(The Hong Kong University of Science and Technology)
We use molecular beam epitaxy to realize high-quality FeSn and CoSn thin film samples on the surface of STO(111). Optimizing the epitaxial growth procedure, we can adapt the growth mode from island growth to continuous film growth and fabricate different sample types for different characterization methods. Introducing a Pt(111) buffer layer on Al2O3(0001), we further implement a controlled layer-by-layer growth mode. We combine scanning tunneling microscopy and electron transport measurements to characterize the material properties and demonstrate the high film quality.
Our work opens avenues for the study of FeSn-type compounds using microscopic and macroscopic measurement techniques, and for the realization of new kagome heterostructures using layer-by-layer growth.
*We acknowledge support by the Research Grant Council, and the Croucher Foundation.
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