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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
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.
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
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
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.
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
Adlayer influence on Dirac-type surface state at W(110).
Grenz PJ, Thonig D, Holtmann M, Miyamoto K, Kumar S, Schwier E, Okuda T, Henk J, Donath M. Grenz PJ, et al. Among authors: kumar s. J Phys Condens Matter. 2021 Jun 3;33(28). doi: 10.1088/1361-648X/abfdf3. J Phys Condens Matter. 2021. PMID: 33946058
Electronic band structure of iridates.
Dhingra A , Komesu T , Kumar S , Shimada K , Zhang L , Hong X , Dowben PA . Dhingra A , et al. Among authors: kumar s. Mater Horiz. 2021 Aug 1;8(8):2151-2168. doi: 10.1039/d1mh00063b. Epub 2021 May 25. Mater Horiz. 2021. PMID: 34846422
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