Enhanced superconductivity in hole-doped Nb<sub>2</sub>PdS<sub>5</sub>

doi:10.1007/s11467-016-0637-7

Front. Phys.

2017, Vol. 12

Issue (5) : 127402 https://doi.org/10.1007/s11467-016-0637-7

RESEARCH ARTICLE

Enhanced superconductivity in hole-doped Nb₂PdS₅

Qian Chen^1,³,Xiaohui Yang^1,³,Xiaojun Yang^1,³,Jian Chen^1,³,Chenyi Shen^1,³,Pan Zhang^1,³,Yupeng Li^1,³,Qian Tao^1,²,Zhu-An Xu^1,^2,³(

)

¹. Department of Physics and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
². Zhejiang California International NanoSystems Institute, Zhejiang University, Hangzhou 310058, China
³. Collaborative Innovation Centre of Advanced Microstructures, Nanjing 210093, China

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Abstract

We synthesized a series of Nb₂Pd_1−xRu_xS₅ polycrystalline samples by a solid-state reaction method and systematically investigated the Ru-doping effect on superconductivity by transport and magnetic measurements. It is found that superconductivity is enhanced with Ru doping and is quite robust upon disorder. Hall coefficient measurements indicate that the charge transport is dominated by hole-type charge carriers similar to the case of Ir doping, suggesting multi-band superconductivity. Upon Ru or Ir doping, H_c₂/T_c exhibits a significant enhancement, exceeding the Pauli paramagnetic limit value by a factor of approximately 4. A comparison of T_c and the upper critical field (H_c₂) amongst the different doping elements on Pd site, reveals a significant role of spin–orbit coupling.

Keywords superconductivity hole-doping upper critical field spin–orbit coupling phase diagram

Corresponding Author(s): Zhu-An Xu

Issue Date: 03 January 2017

Cite this article:

Qian Chen,Xiaohui Yang,Xiaojun Yang, et al. Enhanced superconductivity in hole-doped Nb₂PdS₅[J]. Front. Phys. , 2017, 12(5): 127402.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-016-0637-7
https://academic.hep.com.cn/fop/EN/Y2017/V12/I5/127402

1	Q. Zhang, G. Li, D. Rhodes, A. Kiswandhi, T. Besara, B. Zeng, J. Sun, T. Siegrist, M. D. Johannes, and L. Balicas, Superconductivity with extremely large upper critical fields in Nb2Pd0.81S5, Sci. Rep. 3, 1446 (2013)
2	S. Khim, B. Lee, K. Y. Choi, B. G. Jeon, D. H. Jang, D. Patil, S. Patil, R. Kim, E. S. Choi, S. Lee, J. Yu, and K. H. Kim, Enhanced upper critical fields in a new quasi-one-dimensional superconductor Nb2PdxSe5, New J. Phys. 15(12), 123031 (2013) https://doi.org/10.1088/1367-2630/15/12/123031
3	J. Zhang, J. K. Dong, Y. Xu, J. Pan, L. P. He, L. J. Zhang, and S. Y. Li, Superconductivity at 2.5 K in the new transition-metal chalcogenide Ta2PdxSe5, Supercond. Sci. Technol. 28(11), 115015 (2015) https://doi.org/10.1088/0953-2048/28/11/115015
4	Y. Lu, T. Takayama, A. F. Bangura, Y. Katsura, D. Hashizume, and H. Takagi, Superconductivity at 6 K and the violation of Pauli limit in Ta2PdxS5, J. Phys. Soc. Jpn. 83(2), 023702 (2014) https://doi.org/10.7566/JPSJ.83.023702
5	A. M. Clogston, Upper limit for the critical field in hard superconductors, Phys. Rev. Lett. 9(6), 266 (1962) https://doi.org/10.1103/PhysRevLett.9.266
6	Q. R. Zhang, D. Rhodes, B. Zeng, T. Besara, T. Siegrist, M. D. Johannes, and L. Balicas, Anomalous metallic state and anisotropic multiband superconductivity in Nb3Pd0.7Se7, Phys. Rev. B 88(2), 024508 (2013) https://doi.org/10.1103/PhysRevB.88.024508
7	D. J. Singh, Electronic structure and upper critical field of superconducting Ta2PdxS5, Phys. Rev. B 88(17), 174508 (2013) https://doi.org/10.1103/PhysRevB.88.174508
8	N. Zhou, X. Xu, J. R. Wang, J. H. Yang, Y. K. Li, Y. Guo, W. Z. Yang, C. Q. Niu, B. Chen, C. Cao, and J. Dai, Controllable spin-orbit coupling and its influence on the upper critical field in the chemically doped quasione- dimensional Nb2PdS5 superconductor, Phys. Rev. B 90(9), 094520 (2014) https://doi.org/10.1103/PhysRevB.90.094520
9	C. Y. Shen, B. Q. Si, H. Bai, X. J. Yang, Q. Tao, G. H. Cao, and Z. A. Xu, Pd site doping effect on superconductivity in Nb2Pd0.81S5, Europhys. Lett. 113(3), 37006 (2016) https://doi.org/10.1209/0295-5075/113/37006
10	C. Q. Niu, J. H. Yang, Y. K. Li, B. Chen, N. Zhou, J. Chen, L. L. Jiang, B. Chen, X. X. Yang, C. Cao, J. Dai, and X. Xu, Effect of selenium doping on the superconductivity of Nb2Pd(S1−xSex)5, Phys. Rev. B 88(10), 104507 (2013) https://doi.org/10.1103/PhysRevB.88.104507
11	A. Gurevich, Enhancement of the upper critical field by nonmagnetic impurities in dirty two-gap superconductors, Phys. Rev. B 67(18), 184515 (2003) https://doi.org/10.1103/PhysRevB.67.184515
12	J. P. Carbotte, Properties of boson-exchange superconductors, Rev. Mod. Phys. 62(4), 1027 (1990) https://doi.org/10.1103/RevModPhys.62.1027
13	I. J. Lee, P. M. Chaikin, and M. J. Naughton, Exceeding the Pauli paramagnetic limit in the critical field of (TMTSF)2PF6, Phys. Rev. B 62(22), R14669 (2000) https://doi.org/10.1103/PhysRevB.62.R14669
14	N. R. Werthamer, E. Helfand, and P. C. Hohenberg, Temperature and purity dependence of the superconducting critical field, Hc2 (III): Electron spin and spinorbit effects, Phys. Rev. 147(1), 295 (1966) https://doi.org/10.1103/PhysRev.147.295
15	A. Carrington and J. R. Cooper, Influence of grainboundary scattering on the transport properties of a high-Tcoxide superconductor, Physica C 219(1–2), 119 (1994)
16	D. LeBoeuf, N. Doiron-Leyraud, J. Levallois, R. Daou, J. B. Bonnemaison, N. E. Hussey, L. Balicas, B. J. Ramshaw, R. Liang, D. A. Bonn, W. N. Hardy, S. Adachi, C. Proust, and L. Taillefer, Electron pockets in the Fermi surface of hole-doped high-Tc superconductors, Nature 450(7169), 533 (2007) https://doi.org/10.1038/nature06332
17	H. N. S. Lee, M. Garcia, H. McKinzie, and A. Wold, The low-temperature electrical and magnetic properties of TaSe2 and NbSe2, J. Solid State Chem. 1(2), 190 (1970) https://doi.org/10.1016/0022-4596(70)90013-7
18	C. Wang, Y. K. Li, Z. W. Zhu, S. Jiang, X. Lin, Y. K. Luo, S. Chi, L. J. Li, Z. Ren, M. He, H. Chen, Y. T. Wang, Q. Tao, G. H. Cao, and Z. A. Xu, Effects of cobalt doping and phase diagrams of LFe1−xCoxAsO (L= La and Sm),Phys. Rev. B 79(5), 054521 (2009) https://doi.org/10.1103/PhysRevB.79.054521
19	L. J. Li, Y. K. Luo, Q. B. Wang, H. Chen, Z. Ren, Q. Tao, Y. K. Li, X. Lin, M. He, Z. W. Zhu, G. H. Cao, and Z. A. Xu, Superconductivity induced by Ni doping in BaFe2As2 single crystals, New J. Phys. 11(2), 025008 (2009) https://doi.org/10.1088/1367-2630/11/2/025008
20	H. Yu, M. Zuo, L. Zhang, S. Tan, C. Zhang, and Y. Zhang, Superconducting fiber with transition temperature up to 7.43 K in Nb2Pd1−xS5 (0.6<x<1), J. Am. Chem. Soc. 135(35), 12987 (2013) https://doi.org/10.1021/ja4062079

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