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Page 1
Prediction and observation of an antiferromagnetic topological insulator.
Otrokov MM, Klimovskikh II, Bentmann H, Estyunin D, Zeugner A, Aliev ZS, Gaß S, Wolter AUB, Koroleva AV, Shikin AM, Blanco-Rey M, Hoffmann M, Rusinov IP, Vyazovskaya AY, Eremeev SV, Koroteev YM, Kuznetsov VM, Freyse F, Sánchez-Barriga J, Amiraslanov IR, Babanly MB, Mamedov NT, Abdullayev NA, Zverev VN, Alfonsov A, Kataev V, Büchner B, Schwier EF, Kumar S, Kimura A, Petaccia L, Di Santo G, Vidal RC, Schatz S, Kißner K, Ünzelmann M, Min CH, Moser S, Peixoto TRF, Reinert F, Ernst A, Echenique PM, Isaeva A, Chulkov EV. Otrokov MM, et al. Among authors: kumar s. Nature. 2019 Dec;576(7787):416-422. doi: 10.1038/s41586-019-1840-9. Epub 2019 Dec 18. Nature. 2019. PMID: 31853084
Dirac gap opening and Dirac-fermion-mediated magnetic coupling in antiferromagnetic Gd-doped topological insulators and their manipulation by synchrotron radiation.
Shikin AM, Estyunin DA, Surnin YI, Koroleva AV, Shevchenko EV, Kokh KA, Tereshchenko OE, Kumar S, Schwier EF, Shimada K, Yoshikawa T, Saitoh Y, Takeda Y, Kimura A. Shikin AM, et al. Among authors: kumar s. Sci Rep. 2019 Mar 18;9(1):4813. doi: 10.1038/s41598-019-41137-w. Sci Rep. 2019. PMID: 30886190 Free PMC article.
Anomalous Hall effect in Cu doped Bi2Te3 topological insulator.
Singh A, Kumar S, Singh M, Singh P, Singh R, Gangwar VK, Lakhani A, Patil S, Schwier EF, Matsumura T, Shimada K, Ghosh AK, Chatterjee S. Singh A, et al. Among authors: kumar s. J Phys Condens Matter. 2020 Apr 1;32(30):305602. doi: 10.1088/1361-648X/ab8521. Online ahead of print. J Phys Condens Matter. 2020. PMID: 32235039
Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator [Formula: see text].
Shikin AM, Estyunin DA, Klimovskikh II, Filnov SO, Schwier EF, Kumar S, Miyamoto K, Okuda T, Kimura A, Kuroda K, Yaji K, Shin S, Takeda Y, Saitoh Y, Aliev ZS, Mamedov NT, Amiraslanov IR, Babanly MB, Otrokov MM, Eremeev SV, Chulkov EV. Shikin AM, et al. Among authors: kumar s. Sci Rep. 2020 Aug 6;10(1):13226. doi: 10.1038/s41598-020-70089-9. Sci Rep. 2020. PMID: 32764583 Free PMC article.
Observation of Spin-Momentum-Layer Locking in a Centrosymmetric Crystal.
Zhang K, Zhao S, Hao Z, Kumar S, Schwier EF, Zhang Y, Sun H, Wang Y, Hao Y, Ma X, Liu C, Wang L, Wang X, Miyamoto K, Okuda T, Liu C, Mei J, Shimada K, Chen C, Liu Q. Zhang K, et al. Among authors: kumar s. Phys Rev Lett. 2021 Sep 17;127(12):126402. doi: 10.1103/PhysRevLett.127.126402. Phys Rev Lett. 2021. PMID: 34597091
Non-monotonic variation of the Kramers point band gap with increasing magnetic doping in BiTeI.
Shikin AM, Rybkina AA, Estyunin DA, Klimovskikh II, Rybkin AG, Filnov SO, Koroleva AV, Shevchenko EV, Likholetova MV, Voroshnin VY, Petukhov AE, Kokh KA, Tereshchenko OE, Petaccia L, Di Santo G, Kumar S, Kimura A, Skirdkov PN, Zvezdin KA, Zvezdin AK. Shikin AM, et al. Among authors: kumar s. Sci Rep. 2021 Dec 2;11(1):23332. doi: 10.1038/s41598-021-02493-8. Sci Rep. 2021. PMID: 34857800 Free PMC article.
Evolution of Mn1-xGexBi2Te4 Electronic Structure under Variation of Ge Content.
Estyunina TP, Shikin AM, Estyunin DA, Eryzhenkov AV, Klimovskikh II, Bokai KA, Golyashov VA, Kokh KA, Tereshchenko OE, Kumar S, Shimada K, Tarasov AV. Estyunina TP, et al. Among authors: kumar s. Nanomaterials (Basel). 2023 Jul 24;13(14):2151. doi: 10.3390/nano13142151. Nanomaterials (Basel). 2023. PMID: 37513162 Free PMC article.
Investigation of multi-mode spin-phonon coupling and local B-site disorder in Pr2CoFeO6 by Raman spectroscopy and correlation with its electronic structure by XPS and XAS studies.
Pal A, Ghosh S, Joshi AG, Kumar S, Patil S, Gupta PK, Singh P, Gangwar VK, Prakash P, Singh RK, Schwier EF, Sawada M, Shimada K, Ghosh AK, Das A, Chatterjee S. Pal A, et al. Among authors: kumar s. J Phys Condens Matter. 2019 Jul 10;31(27):275802. doi: 10.1088/1361-648X/ab144f. Epub 2019 Mar 28. J Phys Condens Matter. 2019. PMID: 30921773
Fermi Velocity Reduction of Dirac Fermions around the Brillouin Zone Center in In2 Se3 -Bilayer Graphene Heterostructures.
Wang Z, Hao Z, Yu Y, Wang Y, Kumar S, Xie X, Tong M, Deng K, Hao YJ, Ma XM, Zhang K, Liu C, Ma M, Mei J, Wang G, Schwier EF, Shimada K, Xu F, Liu C, Huang W, Wang J, Jiang T, Chen C. Wang Z, et al. Among authors: kumar s. Adv Mater. 2021 Apr;33(17):e2007503. doi: 10.1002/adma.202007503. Epub 2021 Mar 19. Adv Mater. 2021. PMID: 33739570
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