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本文运用了含时Ginzburg-Landau理论研究了双能带结构的介观超导体在外磁场作用下涡旋随时间的演化. 给出了实际温度在s波和d波的临界温度之间s波、d波以及磁场的分布, 从 理论上模拟得到涡旋进入和退出样品的磁场"过热"与"过冷"现象, 以及介观超导样品边界对涡旋结构分布的影响.
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关键词:
- 涡旋结构 /
- 双能带 /
- 含时Ginzburg-Landau理论 /
- 超导
In this paper, the evolution of vortex configuration for mesoscopic two-gap superconductor is investigated by the time-dependent Ginzburg-Landau theory in the presence of an externally applied field. The vortex configurations of s-wave and d-wave, and the distribution of magnetic field are given when the temperature is between critical temperatures of s-wave and d-wave. In theory, the over-cold and the over-hot field, and the boundary effect on vortex are simulated when the magnetic flux penetrates the superconductor.-
Keywords:
- vortex configuration /
- two energy gaps /
- the time-dependent Ginzburg-Landau theory /
- superconductivity
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[2] Choi H J, Roundy D, Sun H, Cohen M L, Louie S G 2002 Nature 418 758
[3] Souma S, Machida Y, Sato T 2003 Nature 423 65
[4] Gurevich A, Vinokur V M 2003 Phys. Rev. Lett. 90 047004
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[6] Xu J H, Ren Y, Ting C S 1996 Phys. Rev. B 53 R2991
[7] Wang Q H, Wang Z D 1996 Phys. Rev. B 54 R15645
[8] Li Q Q, Wang Z D 2002 Phys. Rev. B 66 134518
[9] Victor Moshchalkov, Mariela Menghini, Nishio T 2009 Phys. Rev. Lett. 102 117001
[10] Yu R P, Paganin D M, Morgan M J 2008 Phys. Rev. B 77 134512
[11] Niu J H, Zhou S P, Xu K X 1998 Acta Phys. Sin. 47 0985 (in Chinese) [牛金海, 周世平, 徐克西 1998 物理学报 47 0985]
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[13] Zhou S P, Qu H, Liao H Y 2002 Acta Phys. Sin. 51 2355 (in Chinese) [周世平, 瞿海, 廖红印 2002 物理学报 51 2355]
[14] Sangbum Kim, Hu C R, Andrews M J 2004 Phys. Rev. B 69 094521
[15] Qiang Du 2005 J. Math. Phy. 46 095109
[16] Zhang Y H 2009 Superconductivity Physics (Vol. 3) (Hefei: Press of University of Science and Technology of China) p196 (in Chinese) [张裕恒 2009 超导物理 (合肥: 中国科学技术大学出版社) 第196页]
[17] Seokwon Yoon, Dai H J, Liu J, Lieber C M 1994 Science 8 215
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[1] Nagamatsu J, Nakagawa N, Muranaka T, Zenitani Y, Akimitsu J 2001 Nature 410 63
[2] Choi H J, Roundy D, Sun H, Cohen M L, Louie S G 2002 Nature 418 758
[3] Souma S, Machida Y, Sato T 2003 Nature 423 65
[4] Gurevich A, Vinokur V M 2003 Phys. Rev. Lett. 90 047004
[5] Ren Y, Xu J H, Ting C S 1995 Phys. Rev. Lett. 74 3680
[6] Xu J H, Ren Y, Ting C S 1996 Phys. Rev. B 53 R2991
[7] Wang Q H, Wang Z D 1996 Phys. Rev. B 54 R15645
[8] Li Q Q, Wang Z D 2002 Phys. Rev. B 66 134518
[9] Victor Moshchalkov, Mariela Menghini, Nishio T 2009 Phys. Rev. Lett. 102 117001
[10] Yu R P, Paganin D M, Morgan M J 2008 Phys. Rev. B 77 134512
[11] Niu J H, Zhou S P, Xu K X 1998 Acta Phys. Sin. 47 0985 (in Chinese) [牛金海, 周世平, 徐克西 1998 物理学报 47 0985]
[12] Qu H, Zhou S P 1999 Acta Phys. Sin. 48 0352 (in Chinese) [瞿海, 周世平 1999 物理学报 48 0352]
[13] Zhou S P, Qu H, Liao H Y 2002 Acta Phys. Sin. 51 2355 (in Chinese) [周世平, 瞿海, 廖红印 2002 物理学报 51 2355]
[14] Sangbum Kim, Hu C R, Andrews M J 2004 Phys. Rev. B 69 094521
[15] Qiang Du 2005 J. Math. Phy. 46 095109
[16] Zhang Y H 2009 Superconductivity Physics (Vol. 3) (Hefei: Press of University of Science and Technology of China) p196 (in Chinese) [张裕恒 2009 超导物理 (合肥: 中国科学技术大学出版社) 第196页]
[17] Seokwon Yoon, Dai H J, Liu J, Lieber C M 1994 Science 8 215
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