Thermal and tunneling pair creation of quasiparticles in quantum Hall systems

Article

关键词: STRONG MAGNETIC-FIELDS;    FILLED LANDAU-LEVEL;    ACTIVATION-ENERGIES;    EXCITATION GAP;    ELECTRON-GAS;    FINITE-SIZE;    SKYRMIONS;    LAYER;    COHERENCE;    INTEGER;   

DOI  :  10.1103/PhysRevB.60.8811

来源: SCIE

【 摘 要 】

We make a semiclassical analysis of thermal pair creations of quasiparticles at various filling factors in quantum Hart systems. It is argued that the gap energy is reduced considerably by the Coulomb potential made by impurities. It is also shown that a tunneling process becomes important at low temperature and at strong magnetic field. We fit typical experimental data excellently based on our semiclassical results of the gap energy. [S0163-1829(99)10535-6].

【 授权许可】

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