Nickel: the time-reversal symmetry conserving partner of iron on a chalcogenide topological insulator

Vondráček, Martin; Cornils, L.; Minár, J.; Warmuth, J.; Michiardi, M.; Piamonteze, C.; Barreto, L.; Miwa, J.A.; Bianchi, M.; Hofmann, Ph.; Zhou, L.; Kamlapure, A.; Khajetoorians, A.A.; Wiesendanger, R.; Mi, J.L.; Iversen, B. B.; Mankovsky, S.; Borek, S.; Ebert, H.; Schüler, M.; Wehling, T.; Wiebe, J.; Honolka, Jan

doi:https://dx.doi.org/10.1103/PhysRevB.94.161114

Number of the records: 1

Nickel: the time-reversal symmetry conserving partner of iron on a chalcogenide topological insulator

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SYSNO ASEP	0467694
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Nickel: the time-reversal symmetry conserving partner of iron on a chalcogenide topological insulator
Author(s)	Vondráček, Martin (FZU-D)_{RID, ORCID} Cornils, L. (DE) Minár, J. (DE) Warmuth, J. (DE) Michiardi, M. (DK) Piamonteze, C. (CH) Barreto, L. (DK) Miwa, J.A. (DK) Bianchi, M. (DK) Hofmann, Ph. (DE) Zhou, L. (DE) Kamlapure, A. (DE) Khajetoorians, A.A. (DE) Wiesendanger, R. (DE) Mi, J.L. (DK) Iversen, B. B. (DK) Mankovsky, S. (DE) Borek, S. (DE) Ebert, H. (DE) Schüler, M. (DE) Wehling, T. (DE) Wiebe, J. (DE) Honolka, Jan (FZU-D)_{RID, ORCID}
Article number	161114
Source Title	Physical Review B. - : American Physical Society - ISSN 2469-9950 Roč. 94, č. 16 (2016), s. 1-5
Number of pages	5 s.
Language	eng - English
Country	US - United States
Keywords	surface ; dichroism ; beamline
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA14-30062S GA ČR - Czech Science Foundation (CSF)
	Fellowship J. E. Purkyně GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	LO1409 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2011029 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271
UT WOS	000385627200002
EID SCOPUS	84992093332
DOI	https://doi.org/10.1103/PhysRevB.94.161114
Annotation	We report on the quenching of single Ni adatom moments on Te-terminated Bi2Te2Se and Bi2Te3 topological insulator surfaces. The effect is noted as a missing x-ray magnetic circular dichroism for resonant L3,2 transitions into partially filled Ni 3d states of theory-derived occupancy nd = 9.2. On the basis of a comparative study of Ni and Fe using scanning tunneling microscopy and ab initio calculations, we are able to relate the element specific moment formation to a local Stoner criterion. Our theory shows that while Fe adatoms form large spin moments of ms = 2.54μ B with out-of-plane anisotropy due to a sufficiently large density of states at the Fermi energy, Ni remains well below an effective Stoner threshold for local moment formation.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2017

Number of the records: 1