Vortex quasi-crystals in mesoscopic superconducting samples  

作　　者：王璟琨 张威 Sde Melo C A R 

机构地区：[1]Department of Physics, Renmin University of China [2]Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China [3]School of Physics, Georgia Institute of Technology

出　　处：《Chinese Physics B》2016年第8期361-368,共8页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11274009,11434011,and 111522436);the National Key Basic Research Program of China(Grant No.2013CB922000);the Research Funds of Renmin University of China(Grant Nos.10XNL016 and 16XNLQ03);the Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices(Grant No.KF201404)

摘　　要：There seems to be a one to one correspondence between the phases of atomic and molecular matter（AMOM） and vortex matter（VM） in superfluids and superconductors. Crystals, liquids, and glasses have been experimentally observed in both AMOM and VM. Here, we propose a vortex quasi-crystal state which can be stabilized due to boundary and surface energy effects for samples of special shapes and sizes. For finite sized pentagonal samples, it is proposed that a phase transition between a vortex crystal and a vortex quasi-crystal occurs as a function of magnetic field and temperature as the sample size is reduced.There seems to be a one to one correspondence between the phases of atomic and molecular matter（AMOM） and vortex matter（VM） in superfluids and superconductors. Crystals, liquids, and glasses have been experimentally observed in both AMOM and VM. Here, we propose a vortex quasi-crystal state which can be stabilized due to boundary and surface energy effects for samples of special shapes and sizes. For finite sized pentagonal samples, it is proposed that a phase transition between a vortex crystal and a vortex quasi-crystal occurs as a function of magnetic field and temperature as the sample size is reduced.

关 键 词：vortex matter QUASI-CRYSTAL mesoscopic superconductor 

分 类 号：O511.3[一般工业技术—材料科学与工程]