Dynamic Approach to the Ground State of Vortex System with
Random Pinning
LUO Meng-Bo, CHEN Qing-Hu, XU Zhu-An, JIAO Zheng-Kuan
Department of Physics, Zhejiang University, Hangzhou 310027
Dynamic Approach to the Ground State of Vortex System with
Random Pinning
LUO Meng-Bo;CHEN Qing-Hu;XU Zhu-An;JIAO Zheng-Kuan
Department of Physics, Zhejiang University, Hangzhou 310027
关键词 ：
74.60.Ge ,
74.60.Jg
Abstract ： We study the ground state of a two-dimensional vortex system with random pinnings by cooling the vortex system to zero temperature. The peak of structure factor S(k) of vortices increases with vortex density B but decreases with pin density BФ , indicating that the vortex lattice becomes better and better ordered with increasing B. When B > BФ , the triangular vortex lattice is observed away from the pins. Repulsive vortex interactions destroy the Mott insulator phase which is predicted to occur at B = BФ . The crossover line between the strong Bose glass and the weak Bose glass is nearly independent of BФ for small BФ .
Key words ：
74.60.Ge
74.60.Jg
出版日期: 2001-04-01
引用本文:
LUO Meng-Bo;CHEN Qing-Hu;XU Zhu-An;JIAO Zheng-Kuan. Dynamic Approach to the Ground State of Vortex System with
Random Pinning[J]. 中国物理快报, 2001, 18(4): 584-586.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I4/584
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2001, Vol. 18 
