Electronic Structure of Pb Adsorbed Surfaces of Intrinsic Magnetic Topological Insulators | Sciact - CRIS-system of Boreskov Institute of Catalysis

Electronic Structure of Pb Adsorbed Surfaces of Intrinsic Magnetic Topological Insulators Full article

Journal

Journal of Physical Chemistry Letters
ISSN: 1948-7185

Output data

Year: 2022, Volume: 13, Number: 29, Pages: 6628-6634 Pages count : 7 DOI: 10.1021/acs.jpclett.2c01245

Tags

Binding energy; Electric insulators; Magnetism; Quantum theory; Topological insulators; Ultrathin films; Wetting

Authors

Klimovskikh Ilya I. ^1,2 , Estyunin Dmitry A. ² , Makarova Tatyana P. ² , Tereshchenko Oleg E. ^2,3,4 , Kokh Konstantin A. ^2,4,5,6 , Shikin Alexander M. ²

Affiliations

1	National University of Science and Technology MISIS, Moscow 119049, Russia
2	Saint Petersburg State University, Saint Petersburg 198504, Russia
3	A.V. Rzhanov Institute of Semiconductor Physics, Novosibirsk 630090, Russia
4	Novosibirsk State University, Novosibirsk 630090, Russia
5	V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
6	Kemerovo State University, Kemerovo 650000, Russia

Recently discovered intrinsic magnetic topological insulators (IMTIs) constitute a unique class of quantum materials that combine magnetism and nontrivial topology. One of the most promising applications of these materials is Majorana fermion creation; Majorana fermions are expected to arise when a superconductor is in contact with the surface of an IMTI. Here we study the adsorption of Pb ultrathin films on top of IMTIs of various stoichiometries. By means of XPS we figure out the formation of the Pb wetting layer coupled to the surface atoms for low coverages and overlayer growth on top upon further deposition. Investigation of the adsorbed surfaces by means of ARPES shows the Dirac cone survival, its shift in a binding energy, and the Pb electronic states appearance. The obtained results allow the Pb/IMTI interfaces to be constructed for the understanding of the proximity effect and provide an important step toward quantum device engineering based on IMTIs

Klimovskikh I.I. , Estyunin D.A. , Makarova T.P. , Tereshchenko O.E. , Kokh K.A. , Shikin A.M.
Electronic Structure of Pb Adsorbed Surfaces of Intrinsic Magnetic Topological Insulators
Journal of Physical Chemistry Letters. 2022. V.13. N29. P.6628-6634. DOI: 10.1021/acs.jpclett.2c01245 WOS Scopus AN OpenAlex

Submitted:	Apr 26, 2022
Accepted:	Jun 23, 2022
Published online:	Jul 14, 2022
Published print:	Jul 28, 2022

Web of science:	WOS:000829854100001
Scopus:	2-s2.0-85135373284
Chemical Abstracts:	2022:1794773
OpenAlex:	W4285386888

DB	Citing
Scopus	4
OpenAlex	5
Web of science	4