Vortex-antivortex dynamics in mesoscopic symmetric and asymmetric superconducting loops with an applied ac current
Vortex-antivortex dynamics in mesoscopic symmetric and asymmetric superconducting loops with an applied ac current
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施加交流电流的介观对称和非对称超导环路中的涡反涡动力学
DOI:
10.1209/0295-5075/108/57001
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发表时间:
2014-12
期刊:
影响因子:
1.8
通讯作者:
Shi-Ping Zhou
中科院分区:
文献类型:
--
作者:
Guo-Qiao Zha;F. M. Peeters;Shi-Ping Zhou
In the framework of the time-dependent Ginzburg-Landau formalism, we study the dynamics of vortex-antivortex (V-Av) pairs in mesoscopic symmetric and asymmetric superconducting loops under an applied ac current. In contrast to the case of a constant biasing dc current, the process of the V-Av collision and annihilation is strongly affected by the time-periodic ac signal. As the direction of the applied ac current is reversed, the existed V-Av pair moves backward and then collides with a new created Av-V pair in a symmetric loop. In the presence of an appropriate external magnetic field, a novel sinusoidal-like oscillatory mode of the magnetization curve is observed, and the periodic dynamical process of the V-Av annihilation occurs in both branches of the sample. Moreover, for the asymmetric sample with an off-centered hole the creation point of the V-Av pair shifts away from the center of the sample, and the creation and annihilation dynamics of V-Av pairs turns out to be very different from the symmetric case.
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影响因子:
2
作者:
M. Milošević;F. Peeters
通讯作者:
M. Milošević;F. Peeters
DOI:
10.1201/9780429497032
发表时间:
2016
期刊:
--
影响因子:
--
作者:
Lukas Furst
通讯作者:
Lukas Furst
影响因子:
3.7
作者:
Guo-Qiao Zha;Shiping Zhou;B. Zhu;Yao-ming Shi
通讯作者:
Guo-Qiao Zha;Shiping Zhou;B. Zhu;Yao-ming Shi
影响因子:
64.8
作者:
A. Geim;A. Geim;S. Dubonos;I. Grigorieva;I. Grigorieva;K. Novoselov;F. M. Peeters;V. Schweigert-V.-Schwei
通讯作者:
A. Geim;A. Geim;S. Dubonos;I. Grigorieva;I. Grigorieva;K. Novoselov;F. M. Peeters;V. Schweigert-V.-Schwei
影响因子:
3.7
作者:
Sangbum Kim;Chia-Ren Hu;M. Andrews
通讯作者:
Sangbum Kim;Chia-Ren Hu;M. Andrews