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Behaviors of multi-node superconducting rings in external magnetic field

Liu Xin-Yuan Xie Fei-Xiang Wang Fu-Ren Ma Ping Dai Yuan-Dong

Behaviors of multi-node superconducting rings in external magnetic field

Liu Xin-Yuan, Xie Fei-Xiang, Wang Fu-Ren, Ma Ping, Dai Yuan-Dong
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  • Numerical simulations and analyses have been applied to find the relationships between magnetic flux,ring current,free energy of superconducting rings and external magnetic field.It is found that a double-junction superconducting ring has a different behavior from a single-junction ring.When the Ic values are identical,a double-junction ring has a non-hysteresis behavior when β<2.The hysteresis exists only when β≥2.And a double-junction ring has a double-branch solution with 2Φ0 period.
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  • Received Date:  25 April 2002
  • Accepted Date:  03 September 2002
  • Published Online:  05 January 2003

Behaviors of multi-node superconducting rings in external magnetic field

  • 1. (1)北京大学物理系,人工微结构和介观物理国家重点实验室,北京 100871; (2)北京大学物理系,人工微结构和介观物理国家重点实验室,北京 100871;北京大学电子学系,北京 100871

Abstract: Numerical simulations and analyses have been applied to find the relationships between magnetic flux,ring current,free energy of superconducting rings and external magnetic field.It is found that a double-junction superconducting ring has a different behavior from a single-junction ring.When the Ic values are identical,a double-junction ring has a non-hysteresis behavior when β<2.The hysteresis exists only when β≥2.And a double-junction ring has a double-branch solution with 2Φ0 period.

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