Abstract
A structural reason for superconductivity in a Cu-, Sr-, or Nb-atom-doped Bi2Se3 topological insulator is still unclear. To understand this reason, a codoping approach has been developed and BaySrxBi2Se3 single crystals with different x and y values have been grown. The composition and structural and transport properties of the grown crystals have been studied. With X-ray diffraction data, it has been shown that barium and strontium intercalate the system, although barium is present in the structure in a very small amount. The addition of barium surprisingly destroys superconductivity, slightly changing the lattice constants, the strontium doping level of the crystal matrix, and the electron density. Thus, a key role of a certain coordination arrangement of positions of strontium atoms between Bi2Se3 quintuples for achieving superconductivity in this material has been demonstrated.
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References
J. Bardeen, L. N. Cooper, and J. R. Schrieffer, Phys. Rev. 108, 1175 (1957).
Z. Liu, X. Yao, J. Shao, M. Zuo, L. Pi, S. Tan, C. Zhang, and Y. Zhang, J. Am. Chem. Soc. 137, 10512 (2015).
Y. S. Hor, A. J. Williams, J. G. Checkelsky, P. Roushan, J. Seo, Q. Xu, H. W. Zandbergen, A. Yazdani, N. P. Ong, and R. J. Cava, Phys. Rev. Lett. 104, 057001 (2010).
T. Asaba, B. J. Lawson, C. Tinsman, L. Chen, P. Corbae, G. Li, Y. Qiu, Y. S. Hor, L. Fu, and L. Li, Phys. Rev. X 7, 011009 (2017).
L. Fu and E. Berg, Phys. Rev. Lett. 105, 097001 (2010).
L. Fu, Phys. Rev. B 90, 100509(R) (2014).
X. Wan and S. Y. Savrasov, Nat. Commun. 5, 4144 (2014).
P. M. R. Brydon, S. Das Sarma, H.-Y. Hui, and J. D. Sau, Phys. Rev. B 90, 184512 (2014).
J. Wang, K. Ran, S. Li, Z. Ma, S. Bao, Z. Cai, Y. Zhang, K. Nakajima, S. Ohira-Kawamura, P. Čermàk, A. Schneidewind, S. Y. Savrasov, X. Wan, and J. Wen, Nat. Commun. 10, 2802 (2019).
Y. Pan, A. M. Nikitin, G. K. Araizi, Y. K. Huang, Y. Matsushita, T. Naka, and A. de Visser, Sci. Rep. 6, 28632 (2016).
S. Yonezawa, K. Tajiri, S. Nakata, Y. Nagai, Z. Wang, K. Segawa, Y. Ando, and Y. Maeno, Nat. Phys. 13, 123 (2017).
R. Tao, Y.-J. Yan, X. Liu, Z.-W. Wang, Y. Ando, Q.-H. Wang, T. Zhang, and D.-L. Feng, Phys. Rev. X 8, 041024 (2018).
K. Matano, M. Kriener, K. Segawa, Y. Ando, and G. Zheng, Nat. Phys. 12, 852 (2016).
S. Sasaki, M. Kriener, K. Segawa, K. Yada, Y. Tanaka, M. Sato, and Y. Ando, Phys. Rev. Lett. 107, 217001 (2010).
S. Yonezawa, Condens. Matter 4, 2 (2019).
M. Kriener, K. Segawa, Z. Ren, S. Sasaki, S. Wada, S. Kuwabata, and Y. Ando, Phys. Rev. B 84, 054513 (2011).
K. Kobayashi, T. Ueno, H. Fujiwara, T. Yokoya, and J. Akimitsu, Phys. Rev. B 95, 180503(R) (2017).
S.-H. Yu, T. L. Hung, M.-N. Ou, M. M. C. Chou, and Y.-Y. Chen, Phys. Rev. B 100, 174502 (2019).
H. Huang, J. Gu, M. Tan, Q. Wang, P. Ji, and X. Hu, Sci. Rep. 7, 45565 (2017).
A. Yu. Kuntsevich, V. P. Martovitskii, G. V. Rybalchenko, Yu. G. Selivanov, M. I. Bannikov, O. A. Sobolevskiy, and E. G. Chigevskii, Materials 12, 3899 (2019).
S. O. Volosheniuk, Yu. G. Selivanov, M. A. Bryzgalov, V. P. Martovitskii, and A. Yu. Kuntsevich, J. Appl. Phys. 125, 095103 (2019).
Z. Li, M. Wang, D. Zhang, N. Feng, W. Jiang, C. Han, W. Chen, M. Ye, C. Gao, J. Jia, J. Li, S. Qiao, D. Qian, B. Xu, H. Tian, and B. Gao, Phys. Rev. Mater. 2, 014201 (2018).
A. Yu. Kuntsevich, M. A. Bryzgalov, V. A. Prudkoglyad, V. P. Martovitskii, Yu. G. Selivanov, and E. G. Chizhevskii, New J. Phys. 20, 103022 (2018).
A. Yu. Kuntsevich, M. A. Bryzgalov, V. P. Martovitskii, R. S. Akzyanov, Yu. G. Selivanov, and A. L. Rakhmanov, Phys. Rev. B 100, 224509 (2019).
Y. S. Hor, A. Richardella, P. Roushan, Y. Xia, J. G. Checkelsky, A. Yazdani, M. Z. Hasan, N. P. Ong, and R. J. Cava, Phys. Rev. B 79, 195208 (2009).
J. Moon, N. Koirala, M. Salehi, W. Zhang, W. Wu, and S. Oh, Nano Lett. 18, 820 (2018).
E. T. Kulatov, V. N. Men’shov, V. V. Tugushev, and Yu. A. Uspenskii, JETP Lett. 109, 102 (2019).
L. N. Oveshnikov, V. A. Prudkoglyad, Yu. G. Selivanov, E. G. Chizhevskii, and B. A. Aronzon, JETP Lett. 106, 526 (2017).
Acknowledgments
The measurements were performed at the Shared Facility Center, Lebedev Physical Institute, Russian Academy of Sciences.
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This work was supported by the Russian Foundation for Basic Research, project no. 18-02-40137.This work was supported by the Russian Science Foundation, project no. 17-12-01544.
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Russian Text © The Author(s), 2020, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2020, Vol. 111, No. 3, pp. 166–172.
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Kuntsevich, A.Y., Rybal’chenko, G.V., Martovitskii, V.P. et al. Effect of Barium Codoping on Superconductivity in SrxBi2Se3. Jetp Lett. 111, 151–156 (2020). https://doi.org/10.1134/S002136402003008X
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DOI: https://doi.org/10.1134/S002136402003008X