Research output: Contribution to journal › Article › peer-review
Magneto-Spin-Orbit Graphene : Interplay between Exchange and Spin-Orbit Couplings. / Rybkin, Artem G.; Rybkina, Anna A.; Otrokov, Mikhail M.; Vilkov, Oleg Yu; Klimovskikh, Ilya I.; Petukhov, Anatoly E.; Filianina, Maria V.; Voroshnin, Vladimir Yu; Rusinov, Igor P.; Ernst, Arthur; Arnau, Andrés; Chulkov, Evgueni V.; Shikin, Alexander M.
In: Nano Letters, Vol. 18, No. 3, 14.03.2018, p. 1564-1574.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Magneto-Spin-Orbit Graphene
T2 - Interplay between Exchange and Spin-Orbit Couplings
AU - Rybkin, Artem G.
AU - Rybkina, Anna A.
AU - Otrokov, Mikhail M.
AU - Vilkov, Oleg Yu
AU - Klimovskikh, Ilya I.
AU - Petukhov, Anatoly E.
AU - Filianina, Maria V.
AU - Voroshnin, Vladimir Yu
AU - Rusinov, Igor P.
AU - Ernst, Arthur
AU - Arnau, Andrés
AU - Chulkov, Evgueni V.
AU - Shikin, Alexander M.
PY - 2018/3/14
Y1 - 2018/3/14
N2 - A rich class of spintronics-relevant phenomena require implementation of robust magnetism and/or strong spin-orbit coupling (SOC) to graphene, but both properties are completely alien to it. Here, we for the first time experimentally demonstrate that a quasi-freestanding character, strong exchange splitting and giant SOC are perfectly achievable in graphene at once. Using angle- and spin-resolved photoemission spectroscopy, we show that the Dirac state in the Au-intercalated graphene on Co(0001) experiences giant splitting (up to 0.2 eV) while being by no means distorted due to interaction with the substrate. Our calculations, based on the density functional theory, reveal the splitting to stem from the combined action of the Co thin film in-plane exchange field and Au-induced Rashba SOC. Scanning tunneling microscopy data suggest that the peculiar reconstruction of the Au/Co(0001) interface is responsible for the exchange field transfer to graphene. The realization of this "magneto-spin-orbit" version of graphene opens new frontiers for both applied and fundamental studies using its unusual electronic bandstructure.
AB - A rich class of spintronics-relevant phenomena require implementation of robust magnetism and/or strong spin-orbit coupling (SOC) to graphene, but both properties are completely alien to it. Here, we for the first time experimentally demonstrate that a quasi-freestanding character, strong exchange splitting and giant SOC are perfectly achievable in graphene at once. Using angle- and spin-resolved photoemission spectroscopy, we show that the Dirac state in the Au-intercalated graphene on Co(0001) experiences giant splitting (up to 0.2 eV) while being by no means distorted due to interaction with the substrate. Our calculations, based on the density functional theory, reveal the splitting to stem from the combined action of the Co thin film in-plane exchange field and Au-induced Rashba SOC. Scanning tunneling microscopy data suggest that the peculiar reconstruction of the Au/Co(0001) interface is responsible for the exchange field transfer to graphene. The realization of this "magneto-spin-orbit" version of graphene opens new frontiers for both applied and fundamental studies using its unusual electronic bandstructure.
KW - ab initio calculations
KW - angle- and spin-resolved photoemission spectroscopy
KW - electronic structure
KW - Graphene
KW - scanning tunneling microscopy
KW - spin-orbit and exchange coupling
UR - http://www.scopus.com/inward/record.url?scp=85043778761&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/magnetospinorbit-graphene-interplay-between-exchange-spinorbit-couplings
U2 - 10.1021/acs.nanolett.7b01548
DO - 10.1021/acs.nanolett.7b01548
M3 - Article
C2 - 29365269
AN - SCOPUS:85043778761
VL - 18
SP - 1564
EP - 1574
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 3
ER -
ID: 36197322