JMP  Vol.2 No.6 , June 2011
Superconductivity Modulated by Binary Doping in Nd1-xBaxFeAsO1-2xF2x
ABSTRACT
Binary doping effect is studied for the Fe-based superconductors of Nd1-xBaxFeAsO1-2xF2x(x = 0.02, 0.05, 0.1, 0.15, 0.2). The X-ray diffractions show that the c-axis lattice constant decreases monotonously with the doping content, in contrast to the little change in the a-axis. Temperature dependences of electric resistivity and magnetic susceptibility reveal that the superconductivity for the studied system emerges at x = 0.1, and enhances together with Hc2(0) as the doping content x increases further. In case of x = 0.2, the superconducting critical temperature reaches as high as 50 K, which is the first demonstration of superconductivity with a high fluorine-doping induced by both electron and hole doping in this family. Negative Hall coefficient (RH) indicates that electron-type carriers are dominated in the present samples. The complicated temperature dependence of RH, is believed to arise from a multiband effect together with a complicated scattering, especially at the tem-perature near the TC.

Cite this paper
nullC. Qu, Z. Liu, Y. Lu, C. Chen, C. Cai, A. Fang, F. Huang, M. Wang and X. Xie, "Superconductivity Modulated by Binary Doping in Nd1-xBaxFeAsO1-2xF2x," Journal of Modern Physics, Vol. 2 No. 6, 2011, pp. 463-471. doi: 10.4236/jmp.2011.26056.
References
[1]   Y. Kamihara, T. Watanabe, M. Hirano, and H. Hosono, “Iron-Based Layered Superconductor La[O1-xFx]FeAs (x = 0.05 - 0.12) with Tc 26 K” Journal of the American Chemical Society, Vol. 130, 2008, pp. 3296-3297

[2]   Ren Zhi-An, Lu Wei, Yang Jie, Yi Wei, Shen Xiao Li,Li Zheng Cai,Che Guang Can,Dong Xiao li, Sun Li Ling, Zhou Fang, Zhao Zhong Xian, “Superconductivity at 55 K in iron-based F-doped layered quaternary compound Sm[O1-xFx]FeAs” Chinese Physics Letters, Vol. 25, 2008. 2215

[3]   Hai hu Wen, Gan Mu, Lei Fang, Huan Yang, and Xiyu Zhu, “Superconductivity at 25K in hole-doped (La1-xSrx) OFeAs” Europhys. Letters, Vol. 82, 2008. 17009

[4]   Yoshikazu Mizuguchi, Yoshihiko Takano, “A review of Fe-chalcogenide superconductors: the simplest Fe-based superconductor” arXiv: 1003.2696, 2010

[5]   Fong-Chi Hsu, Jiu-Yong Luo, Kuo-Wei Ye, Ta-Kun Chen, Tzu-Wen Huang, Phillip M. Wu, Yong-Chi Lee, Yi-Lin Huang, Yan-Yi Chu, Der-Chung Yan, and Maw-Kuen Wu, “Superconductivity in the PbO-type structure-FeSe” Proceedings of the National Academy of Sciences, Vol. 105, 2008, pp. 14262-14264

[6]   X. C. Wang, Q. Q. Liu, Y. X. Lv, W. B. Gao, L. X. Yang, R. C. Yu, F. Y. Li, and C. Q. Jin, “The superconductivity at 18 K in LiFeAs system” Solid Sate Communications Vol. 148, 2008. 538

[7]   Joshua H. Tapp, Zhongjia Tang, Bing Lv, Kalyan Sasmal, Bernd Lorenz, Paul C. W. Chu, and Arnold M. Guloy, “LiFeAs: An intrinsic FeAs-based superconductor with T = 18 K” Physical Review B, Vol. 78, 2008. 060505(R)

[8]   J. Dong, H. J. Zhang, G. Xu, Z. Li, W. Z. Hu, D. Wu, G. F. Chen, X. Dai, J. L. Luo, Z. Feng, N. Fang, N. L. Wang, “Competing Orders and Spin-Density-Wave Instability in La(O1-xFx)FeAs” arXiv: 0803.3426, 2008

[9]   X. H. Chen, T. Wu, G. Wu, R. H. Liu, H. Chen, and D. F. Fang, “Superconductivity at 43K in SmFeAsO1-xFx” Nature Vol. 453, 2008. 761

[10]   G. F. Chen, Z. Li, D. Wu, G. Li, W. Z. Hu, J. Dong, P. Zheng, J. L. Luo, and N. L. Wang, “Superconductivity at 41K and Its Competition with Spin-Density-Wave Instability in Layered CeO1-xFxFeAs” Physical Review Letters Vol. 100, 2008. 247002

[11]   Z. A. Ren, J. Yang, W. Lu, W. Yi, G.-C. Che, X.-L. Dong, L.-L. Sun, and Z.-X. Zhao, “Superconductivity at 52 K in iron based F doped layered quaternary compound PO1-xFxFeAs” Materials. Research. Innovations Vol. 12, 2008.105

[12]   Peng Cheng, Lei Fang, Huan Yang, Xiyu Zhu, Gang Mu, Huiqian Luo, Zhaosheng Wang, and Hai-Hu Wen,” Superconductivity at 36 K in gadolinium-arsenide oxides GdO1-xFxFeAs” Science China Series G Vol. 51, 2008. 719

[13]   Cao Wang, Linjun Li, Shun Chi, Zengwei Zhu, Zhi Ren, Yuke Li, Yuetao Wang, Xiao Lin, Yongkang Luo, Shuai Jiang, Xiangfan Xu, Guanghan Cao, and Zhu’an Xu,” Thorium-doping–induced superconductivity up to 56K in Gd1-xThxFeAsO” Europhys. Letters. Vol. 83, 2008.67006

[14]   Fei Han, Xiyu Zhu, Gang Mu, Peng Cheng, and Hai Hu Wen,” SrFeAsF as a parent compound for iron pnictide superconductors” Physical Review B Vol. 78, 2008. 180503(R)

[15]   Houria Kabbour, Laurent Cario and Florent Boucher, “Rational design of new inorganic compounds with the ZrSiCuAs structure type using 2D building blocks” Journal of Materials Chemistry Vol. 15, 2005. 3525

[16]   XiYu Zhu, Fei Han, Mu Gang, Peng Cheng, Bing Zeng, and Hai Hu Wen ” Transition of stoichiometric Sr VO FeAs to a superconducting state at 37.2 K” arXiv: 0904.1732v2, 2009

[17]   .P.S. Awana, Arpita Vajpayee, Anand Pal, Mnika Mudgel, R.S. Meena, and H. Kishan, “Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO” arXiv: 0902.3894, 2009

[18]   Clarina de la Cruz, W. Z. Hu, Shiliang Li, Q. Huang, J. W. Lynn, M. A. Green, G. F. Chen, N. L. Wang, H. A. Mook, Qimiao Si, and Pengcheng Dai, “Lattice distortion and magnetic quantum phase transition in CeFeAs1-xPxO” arXiv: 0907.2853, 2009

[19]   Y. Kamihara, T. Watanabe, M. Hirano, and H. Hosono, “Iron-Based Layered Superconductor La[O1-xFx]FeAs (x= 0.05-0.12) with Tc 26 K” Journal of the American Chemical Society Vol. 130, 2008, pp. 3296-3297 (2008).

[20]   G Wu, H Chen, T Wu, Y L Xie, Y J Yan, R H Liu, X F Wang, J J Ying, and X H Chen, “Differentresistivityresponse to spin-density wave and superconductivity at 20 Kin Ca1-xNaxFe2As2” Journal of Physics Condensed Matter Vol. 20, 2008. 422201

[21]   A. Kreyssig, M. G. Kim, S. Nandi, D. K. Pratt, W. Tian, J. L. Zarestky, N. Ni, A. Thaler, S. L. Bud’ko, P. C. Canfield, R. J. McQueeney, and A. I. Goldman, “Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)2As2”Physical Review B. Vol. 81, 2010.134512

[22]   Zhi Ren, Qian Tao, Shuai Jiang, Chunmu Feng, Cao Wang, Jianhui Dai, Guanghan Cao, and Zhu’an Xu, “Superconductivity induced by phosphorus doping and its coexistence with ferromagnetism in EuFe2(As0.7P0.3)2” arXiv: 0811.2390, 2008

[23]   Jie Yang, Xiao-Li Shen, Wei Lu, Wei Yi, Zheng-Cai Li, Zhi-An Ren, Guang-Can Che, Xiao-Li Dong, Li-Ling Sun, Fang Zhou, Zhong-Xian Zhao, “High-Tc Superconductivity in some Heavy Rare-earth Iron-arsenide REFeAsO1-y (RE = Ho, Y, Dy and Tb) Compounds” arXiv: 0809.3582, 2008

[24]   Kiichi MIYAZAWA, Kunihiro KIHOU, Parasharam M. SHIRAGE, Chul-Ho LEE,Hijiri KITO, Hiroshi EISAKI, and Akira IYO, “Superconductivity above 50K in LnFeAsO1y (Ln 1/4 Nd, Sm, Gd, Tb, and Dy) Synthesized by High-Pressure Technique” Journal of the Physical Society of Japan Vol. 78, 2009. 034712

[25]   Jie Yang, Xiao-Li Shen, Wei Lu, Wei Yi, Zheng-Cai Li, Zhi-An Ren, Guang-Can Che, Xiao-Li Dong, Li-Ling Sun, Fang Zhou, and Zhong-Xian Zhao, “High-Tc Superconductivity in some Heavy Rare-earth Iron-arsenide REFeAsO1-y (RE = Ho, Y, Dy and Tb) Compounds” New Journal of Physics. Vol. 11, 2009.025005

[26]   Terzieff P, Komarek KL, “The Paramagnetic Properties of Iron Selenides With NiAs-Type Structure” Monatshefte für Chemie Vol. 109, 1978, pp. 651-659

[27]   Schuster W, MiMer H, Komarek KL,” Transition Metal-Chalcogen Systems, VII.: The Iron~elenium Phase Diagram” Monatshefte für Chemie Vol. 110, 1979, pp.1153–1170

[28]   J L Yang, W J Ren, D Li, WJ Hu, B Li and Z D Zhang, “Superconductivity modulated by internal pressureinCe1-xGdxFeAsO0.84F0.16 compounds” Superconductor Science and Technology. Vol. 23, 2010.025003

[29]   M. Tropeano, M. R. Cimberle, C. Ferdeghini, G. Lamura, A. Martinelli, A. Palenzona, I. Pallecchi, A. Sala, I. Sheikin, F. Bernardini, M. Monni, S. Massidda, and M. Putti, “Isoelectronic Ru substitution at the iron site in SmFe1-xRuxAsO0.85F0.15 and its effects on structural, superconducting, and normal-state properties” Physical Review B. Vol. 81,2010.184054

[30]   Lei Wang, Yanpeng Qi, Zhaoshun Gao, DongliangWang, Xianping Zhang and Yanwei Ma, “The roleof silveraddition on the structural and superconducting properties of polycrystalline Sr0.6K0.4Fe2As2” Superconductor Science and Technology. Vol. 23, 2010.025027

[31]   C. Senatore and R. Flukiger, ” Upper critical fields well above 100 T for the superconductor SmFeAsO F with T = 46 K” Physical Review B. Vol. 78, 2008, 054514

[32]   Lina E. Klintberg, Swee K. Goh, Shigeru Kasahara, Yusuke Nakai, Kenji Ishida, Michael Sutherland, Takasada Shibauchi, Yuji Matsuda, and Takahito Terashima, “Chemical Pressure and Physical Pressure in BaFe2(As1-xPx)2” arXiv: 1009.2716v1, 2010

[33]   Gang Mu, Bin Zeng, Xiyu Zhu, Fei Han, Peng Cheng, Bing Shen, and Hai Hu Wen, “Synthesis, structural, and transport properties of the hole-doped superconductor Pr1?xSrxFeAsO” Physical Review B. Vol. 79, 2009. 104501

[34]   Karolina Kasperkiewicz, Jan-Willem G. Bos, A. N. Firch, K. Prassides, and S. Margadonna, “Structural and electronic response upon hole doping of rare-earth iron oxyarsenides Nd1?xSrxFeAsO (0 < x ≤ 0.2)” Chemical Communications 2009, pp.707-709

[35]   Y. Mizuguhci, Y. Hara, K. Deguchi, S. Tsuda1, T. Yamaguchi, K. Takeda, H. Kotegawa, H. Tou and Y. Takano, “Anion height dependence of Tc for the Fe-based superconductor” arXiv: 1001.1801, 2010

[36]   David Berardan, Lidong Zhao, Loreynne Pinsard-Gaudart, Nita Dragoe, “Electronic phase diagram of Fe1-xRhxAsO” Physical Review B. Vol. 81, 2010.094506

[37]   A. Koitzsch, D. Inosov, J. Fink, M. Knupfer, H. Eschrig, S. V. Borisenko, G. Behr, A. K?hler, J. Werner, B. Büchner, R. Follath, and H. A. Dürr, “Valence-band and core-level photoemission spectroscopy of LaFeAsO1-xFx” Physical Review B. Vol. 78, 2008.180506

[38]   Gang Mu, Bin Zeng, Xiyu Zhu, Fei Han, Peng Cheng, Bing Shen, and Hai Hu Wen, “Synthesis, structural, and transport properties of the hole-doped superconductor Pr1?xSrxFeAsO” Physical Review B. Vol. 78, 2008. 104501

[39]   Xiyu zhu, Huan Yang, Lei Fang, Gang Mu, and Hai Hu Wen, “Upper criticalfield, Hall effectand magnetoresistance inthe iron-based layeredsuperconductor LaFeAsO0.9F0.1-δ” Superconductor Science and Technology. Vol. 21, 2008.105001

[40]   G. F. Chen, Z. Li, G. Li, J. zhou, D. Wu, J. Dong, W. Z. Hu, P. Zheng, Z. J. Chen, H. Q. Yuan, J. Singleton, J. L. Luo, and N. L. Wang, “SuperconductingProperties oftheFe-BasedLayeredSuperconductorLaFeAsO0.9F0.1-δ” Physical Review letters, Vol. 101, 2008.057007

[41]   Ai Hua Fang, Fu Qiang Wang, Xiao Ming Xie, “Low-Temperature Rapid Synthesis and Superconductivity of Fe-Based Oxypnictide Superconductors” Journal of the American Chemical Society, Vol. 132, 2010. pp. 3260-3261

[42]   S. Lebgue, “Electronic structure and properties of the Fermi surface of the superconductor LaOFeP” Physical Review B. Vol. 75, 2007.035110

[43]   Chen Gen Fu, Li Zheng, Li Gang, Hu Wan Zheng, Dong Jing, Zhou Jun, Zhang Xiao Dong, Zheng Ping, Wang Nan Lin, Luo Jina Lin, “Superconductivity in Hole-Doped (Sr1-x Kx )Fe2 As2 ” Chinese Physical Letters, Vol. 25, 2008.3403

[44]   J. Q. Yan, A. Kreyssig, S. Nandi, N. Ni, S. L. Bud’ko, A. Kracher, R. J. McQueeney, R. W. McCallum, T. A. Lograsso, A. I. Goldman, and P. C. Canfield, “Structural transition and anisotropic properties of single-crystalline SrFe2 As2 ” Physical Review B. Vol. 78, 2008. 024516

[45]   G. F. Chen, Z. Li, J. Dong, G. Li, W. Z. Hu, X. D. Zhang, X. H. Song, P. Zheng, N. L. Wang, and J. L. Luo, “Transport and anisotropy in single-crystalline SrFe2As2 and A0.6K0.4Fe2 As2 (A=Sr, Ba) superconductors” Physical Review B. Vol. 78, 2008. 224512

[46]   Gang Mu, Bin Zeng, Xiyu Zhu, Fei Han, Peng Cheng, Bing Shen, and Hai Hu Wen, “Synthesis, structural and transport properties of the hole-doped Superconductor Pr1-xSrxFeAsO” arXiv: 0810.0986, 2008

 
 
Top