Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Signatures of in-plane and out-of-plane magnetization generated by synchrotron radiation in magnetically doped and pristine topological insulators. / Shikin, A. M.; Rybkina, A. A.; Estiunin, D. A.; Sostina, D. M.; Voroshnin, V. Yu; Klimovskikh, I. I.; Rybkin, A. G.; Surnin, Yu A.; Kokh, K. A.; Tereshchenko, O. E.; Petaccia, L.; Di Santo, G.; Skirdkov, P. N.; Zvezdin, A. K.; Zvezdin, A. K.; Kimura, A.; Chulkov, E. V.; Krasovskii, E. E.
в: Physical Review B-Condensed Matter, Том 97, № 24, 245407, 11.06.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Signatures of in-plane and out-of-plane magnetization generated by synchrotron radiation in magnetically doped and pristine topological insulators
AU - Shikin, A. M.
AU - Rybkina, A. A.
AU - Estiunin, D. A.
AU - Sostina, D. M.
AU - Voroshnin, V. Yu
AU - Klimovskikh, I. I.
AU - Rybkin, A. G.
AU - Surnin, Yu A.
AU - Kokh, K. A.
AU - Tereshchenko, O. E.
AU - Petaccia, L.
AU - Di Santo, G.
AU - Skirdkov, P. N.
AU - Zvezdin, A. K.
AU - Zvezdin, A. K.
AU - Kimura, A.
AU - Chulkov, E. V.
AU - Krasovskii, E. E.
PY - 2018/6/11
Y1 - 2018/6/11
N2 - Possibility of in-plane and out-of-plane magnetization generated by synchrotron radiation (SR) in magnetically doped and pristine topological insulators (TIs) is demonstrated and studied by angle-resolved photoemission spectroscopy. We show experimentally and by ab initio calculations how nonequal depopulation of the Dirac cone (DC) states with opposite momenta in V-doped and pristine TIs generated by linearly polarized SR leads to the hole-generated uncompensated spin accumulation followed by the SR-induced magnetization via spin-torque effect. Moreover, the photoexcitation of the DC is asymmetric, and it varies with the photon energy. We find a relation between the photoexcitation asymmetry, the generated spin accumulation, and the induced in-plane and out-of-plane magnetic field. Experimentally the SR-generated in-plane and out-of-plane magnetization is confirmed by the k shift of the DC position and by the gap opening at the Dirac point even above the Curie temperature. Theoretical predictions and estimations of the measurable physical quantities substantiate the experimental results.
AB - Possibility of in-plane and out-of-plane magnetization generated by synchrotron radiation (SR) in magnetically doped and pristine topological insulators (TIs) is demonstrated and studied by angle-resolved photoemission spectroscopy. We show experimentally and by ab initio calculations how nonequal depopulation of the Dirac cone (DC) states with opposite momenta in V-doped and pristine TIs generated by linearly polarized SR leads to the hole-generated uncompensated spin accumulation followed by the SR-induced magnetization via spin-torque effect. Moreover, the photoexcitation of the DC is asymmetric, and it varies with the photon energy. We find a relation between the photoexcitation asymmetry, the generated spin accumulation, and the induced in-plane and out-of-plane magnetic field. Experimentally the SR-generated in-plane and out-of-plane magnetization is confirmed by the k shift of the DC position and by the gap opening at the Dirac point even above the Curie temperature. Theoretical predictions and estimations of the measurable physical quantities substantiate the experimental results.
KW - SINGLE DIRAC CONE
KW - SURFACE
KW - HETEROSTRUCTURE
KW - POLARIZATION
KW - CURRENTS
KW - TEXTURE
KW - TORQUE
KW - BI2TE3
KW - BI2SE3
UR - http://www.scopus.com/inward/record.url?scp=85048456503&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/signatures-inplane-outofplane-magnetization-generated-synchrotron-radiation-magnetically-doped-prist
U2 - 10.48550/arXiv.1707.08798
DO - 10.48550/arXiv.1707.08798
M3 - Article
AN - SCOPUS:85048456503
VL - 97
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 24
M1 - 245407
ER -
ID: 97219411