Abstract：
:We have studied in-situ cleaved (0001) surfaces of the magnetic Weyl semimetal Mn3Sn by low-temperature scanning tunneling microscopy and spectroscopy (STM/S). It was found that freshly cleaved Mn3Sn surfaces are covered with unknown clusters, and the application of voltage pulses in the tunneling condition was needed to achieve atomically flat surfaces. STM topographs taken on the flat terrace show a bulk-terminated 1 × 1 honeycomb lattice with the Sn site brightest. First-principles calculations reveal that the brightest contrast at the Sn site originates from the surrounding surface Mn d orbitals. Tunneling spectroscopy performed on the as-cleaved and voltage-pulsed surfaces show a prominent semimetal valley near the Fermi energy.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Yang HH,Lee CC,Yoshida Y,Ikhlas M,Tomita T,Nugroho A,Ozaki T,Nakatsuji S,Hasegawa Ydoi
10.1038/s41598-019-45958-7subject
Has Abstractpub_date
2019-07-04 00:00:00pages
9677issue
1issn
2045-2322pii
10.1038/s41598-019-45958-7journal_volume
9pub_type
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