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Two-band Ginzburg-Landau (GL) theory is adopted to analyze the surface critical field Hc3 of Lu2Fe3Si5 . When the surface of a superconductor coincides with any of crystallographic planes and is parallel to the external magnetic field H, the ratio Hc3/Hc2 (where Hc2 is the upper critical field of Lu2Fe3Si5) is strongly dependent on temperature. When the surface of a superconductor coincides with the bc plane and is parallel to H, the ratio depends not only on temperature, but also on the angle between the c axis and H. However, the ratio is constant for single-band superconductors.
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Keywords:
- two-band superconductors /
- GL theory /
- Lu2Fe3Si5 /
- surface critical field
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[2] Canfield P C, Crabtree G W 2003 Physics Today March 34
[3] Bud’ko S L, Kogan V G, Canfield P C 2001 Phys. Rev. B 64 180506
[4] Welp U, Rydh A, Karapetrov G, Kwok W K, Crabtree G W 2003 Phys. Rev. B 67 012505
[5] Fletcher J D, Carrington A, Taylor O J, Kazakov S M, Karpinski J 2005 Phys. Rev. Lett. 95 097005
[6] Shi L B, Ren J Y, Zhang F Y, Zhang G H, Yu Z Q 2007 Acta Phys. Sin. 56 5353 (in Chinese)[史力斌、 任骏原、 张凤云、 张国华、 余增强 2007 56 5353]
[7] Wang Sh F, Liu Zh, Zhu Y B, Zhou Y L, Chen Zh H, Lü H B, Yang G Zh 2004 Chin. Phys. 13 1120
[8] Zhang X P, Ma Y W, Gao Zh Sh, Yu Zh G, Watanabe K, Wen H H 2006 Acta Phys. Sin. 55 4873 (in Chinese) [张现平、 马衍伟、 高召顺、 禹争光、 Watanabe K、 闻海虎 2006 55 4873]
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[10] Yang D S, Wu B M, Li B, Zheng W H, Li S Y, Fan R, Chen X H, Cao L Z 2003, Acta Phys. Sin. 52 683 (in Chinese)[杨东升、 吴柏枚、 李 波、 郑卫华、 李世燕、 樊 荣、 陈仙辉、 曹烈兆 2003 52 683] 〖11] Zhang J, Luo J L, Bai H Y, Chen Z J, Lin D H, Che G C, Ren Z A, Zhao Z X, Jin D 2002 Acta Phys. Sin. 51 342(in Chinese) [张 杰、 雒建林、 白海洋、 陈兆甲、 林德华、 车广灿、 任治安、 赵忠贤、 金 铎 2002 51 342]
[11] Dao V H, Zhitomirsky M E, Cond-mat/0504053
[12] Zhitomirsky M E, Dao V H, 2004 Phys. Rev. B 69 054508
[13] Askerzade I N, Gencer A, Guclu N 2002 Supercond. Sci. Technol. 15 L13
[14] Askerzade I N 2005 JETP Lett. 81 583
[15] Liu M X 2007 Supercond. Sci. Technol. 20 157
[16] Gorokhov D A 2005 Phys. Rev. Lett. 94 077004
[17] Stewart G R, Meisner G P, Segre C U 1985 J. of Low Temp. Phys. 59 237
[18] Umarji A M, Malik S K, Shenoy G K 1985 J. Appl. Phys. 57 3124
[19] Vining C B, Shelton R N, Braun H F, Peliz-zone M 1983 Phys. Rev. B 27 2800
[20] Tamegai T, Nakagawa T, Tokunaga M 2007 Physica C 460-462 708
[21] Gordon R, Vannette M D, Martin C, Nakajima Y, Tamegai T, Prozorov R, arXiv:0801.0269
[22] Huang H, Liu M X submitted
[23] Askerzade I N, Gencer A, Guclu N 2002 Supercond. Sci Technol. 15 L17
[24] De Gennes P G 1966 Supercond. Met. Alloys 199
[25] Tinkham M 1996 Introduction to Superconductivity (New York: McGraw-Hill)
[26] Kogan V G, Clem J R, Deang J M, Gunzburger M D 2002 Phys. Rev. B 65 094514
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[1] Nagamatsu J, Nakagava N, Muranaka T, Zenitani Y, Akimitsu J 2001 Nature (London) 410 63
[2] Canfield P C, Crabtree G W 2003 Physics Today March 34
[3] Bud’ko S L, Kogan V G, Canfield P C 2001 Phys. Rev. B 64 180506
[4] Welp U, Rydh A, Karapetrov G, Kwok W K, Crabtree G W 2003 Phys. Rev. B 67 012505
[5] Fletcher J D, Carrington A, Taylor O J, Kazakov S M, Karpinski J 2005 Phys. Rev. Lett. 95 097005
[6] Shi L B, Ren J Y, Zhang F Y, Zhang G H, Yu Z Q 2007 Acta Phys. Sin. 56 5353 (in Chinese)[史力斌、 任骏原、 张凤云、 张国华、 余增强 2007 56 5353]
[7] Wang Sh F, Liu Zh, Zhu Y B, Zhou Y L, Chen Zh H, Lü H B, Yang G Zh 2004 Chin. Phys. 13 1120
[8] Zhang X P, Ma Y W, Gao Zh Sh, Yu Zh G, Watanabe K, Wen H H 2006 Acta Phys. Sin. 55 4873 (in Chinese) [张现平、 马衍伟、 高召顺、 禹争光、 Watanabe K、 闻海虎 2006 55 4873]
[9] Yu Z Q, Wu K, Ma X B, Nie R J, Wang F R 2007 Acta Phys. Sin. 56 512 (in Chinese)[余增强、 吴 克、 马小柏、 聂瑞娟、 王福仁 2007 56 512]
[10] Yang D S, Wu B M, Li B, Zheng W H, Li S Y, Fan R, Chen X H, Cao L Z 2003, Acta Phys. Sin. 52 683 (in Chinese)[杨东升、 吴柏枚、 李 波、 郑卫华、 李世燕、 樊 荣、 陈仙辉、 曹烈兆 2003 52 683] 〖11] Zhang J, Luo J L, Bai H Y, Chen Z J, Lin D H, Che G C, Ren Z A, Zhao Z X, Jin D 2002 Acta Phys. Sin. 51 342(in Chinese) [张 杰、 雒建林、 白海洋、 陈兆甲、 林德华、 车广灿、 任治安、 赵忠贤、 金 铎 2002 51 342]
[11] Dao V H, Zhitomirsky M E, Cond-mat/0504053
[12] Zhitomirsky M E, Dao V H, 2004 Phys. Rev. B 69 054508
[13] Askerzade I N, Gencer A, Guclu N 2002 Supercond. Sci. Technol. 15 L13
[14] Askerzade I N 2005 JETP Lett. 81 583
[15] Liu M X 2007 Supercond. Sci. Technol. 20 157
[16] Gorokhov D A 2005 Phys. Rev. Lett. 94 077004
[17] Stewart G R, Meisner G P, Segre C U 1985 J. of Low Temp. Phys. 59 237
[18] Umarji A M, Malik S K, Shenoy G K 1985 J. Appl. Phys. 57 3124
[19] Vining C B, Shelton R N, Braun H F, Peliz-zone M 1983 Phys. Rev. B 27 2800
[20] Tamegai T, Nakagawa T, Tokunaga M 2007 Physica C 460-462 708
[21] Gordon R, Vannette M D, Martin C, Nakajima Y, Tamegai T, Prozorov R, arXiv:0801.0269
[22] Huang H, Liu M X submitted
[23] Askerzade I N, Gencer A, Guclu N 2002 Supercond. Sci Technol. 15 L17
[24] De Gennes P G 1966 Supercond. Met. Alloys 199
[25] Tinkham M 1996 Introduction to Superconductivity (New York: McGraw-Hill)
[26] Kogan V G, Clem J R, Deang J M, Gunzburger M D 2002 Phys. Rev. B 65 094514
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