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Showing 2000 · cond-mat.mes-hallShow all
3 papers · 2 filters
cond-mat.mes-hall2000★ 7 cited
Effect of Substitutional Impurities on the Electronic States and Conductivity of Crystals with Half-filled Band
E. P. Nakhmedov, H. Feldmann, R. Oppermann +1
Low temperature quantum corrections to the density of states (DOS) and the conductivity are examined for a two-dimensional(2D) square crystal with substitutional impurities. By sum…
cond-mat.mes-hall2000★ 2 cited
Quantum Tunneling and Quantum-Classical Transitions in Large Spin Systems
Bambi Hu, De-gang Zhang, Bo-zang Li
We have studied quantum tunneling of large spins in a biaxial spin system and in a single-axial spin system with a transverse magnetic field. The asymptotically exact eigenvalues a…
cond-mat.mes-hall2000★ 14 cited
Density of States of Disordered Two-Dimensional Crystals with Half-Filled Band
E. P. Nakhmedov, M. Kumru, R. Oppermann
A diagrammatic method is applied to study the effects of commensurability in two-dimensional disordered crystalline metals by using the particle-hole symmetry with respect to the n…