Dynamic Approach to the Ground State of Vortex System with
Random Pinning

Chin. Phys. Lett.

2001, Vol. 18

Issue (4): 584-586 DOI:

Original Articles

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

Cite this article:

LUO Meng-Bo, CHEN Qing-Hu, XU Zhu-An et al 2001 Chin. Phys. Lett. 18 584-586

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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 B_Ф, indicating that the vortex lattice becomes better and better ordered with increasing B. When B > B_Ф, 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 = B_Ф. The crossover line between the strong Bose glass and the weak Bose glass is nearly independent of B_Ф for small B_Ф.

Keywords: 74.60.Ge 74.60.Jg

Published: 01 April 2001

PACS:	74.60.Ge
	74.60.Jg

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I4/0584

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	CHEN Qing-Hu
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