Fermi Surface Manipulation by External Magnetic Field Demonstrated for a Prototypical Ferromagnet
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F16%3A43930942" target="_blank" >RIV/49777513:23640/16:43930942 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevX.6.041048" target="_blank" >http://dx.doi.org/10.1103/PhysRevX.6.041048</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevX.6.041048" target="_blank" >10.1103/PhysRevX.6.041048</a>
Alternative languages
Result language
angličtina
Original language name
Fermi Surface Manipulation by External Magnetic Field Demonstrated for a Prototypical Ferromagnet
Original language description
We consider the details of the near-surface electronic band structure of a prototypical ferromagnet, Fe(001). Using highresolution angle-resolved photoemission spectroscopy, we demonstrate openings of the spin-orbit-induced electronic band gaps near the Fermi level. The band gaps, and thus the Fermi surface, can be manipulated by changing the remanent magnetization direction. The effect is of the order of ?E 1/4 100 meV and ?k 1/4 0.1 ?MINUS SIGN 1 . We show that the observed dispersions are dominated by the bulk band structure. First-principles calculations and one-step photoemission calculations suggest that the effect is related to changes in the electronic ground state and not caused by the photoemission process itself. The symmetry of the effect indicates that the observed electronic bulk states are influenced by the presence of the surface, which might be understood as related to a Rashba-type effect. By pinpointing the regions in the electronic band structure where the switchable band gaps occur, we demonstrate the significance of spin- orbit interaction even for elements as light as 3d ferromagnets. These results set a new paradigm for the investigations of spin-orbit effects in the spintronic materials. The same methodology could be used in the bottom-up design of the devices based on the switching of spin-orbit gaps such as electric-field control of magnetic anisotropy or tunneling anisotropic magnetoresistance.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW X
ISSN
2160-3308
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
1-13
UT code for WoS article
000389576800002
EID of the result in the Scopus database
2-s2.0-85008219609