Experimental evidence for a Coulomb gap in two dimensions
نویسندگان
چکیده
منابع مشابه
Delocalized Coulomb Phase in Two Dimensions
– Extending finite size scaling theory to the many body ground state, one finds that Coulomb repulsion can drive a system of spinless fermions in a random potential from the Anderson insulator (Fermi glass of localized states) towards a new extended phase in dimension d = 2. The transition occurs at a Coulomb energy to Fermi energy ratio rs ≈ 4, where a change in the nature of the persistent cu...
متن کاملThe Mixed Non-Abelian Coulomb Gas in Two Dimensions a
The statistical mechanics of a mixed gas of adjoint and fundamental representation charges interacting via 1+1-dimensional U (N) gauge fields is investigated. In the limit of large N we show that there is a first order deconfining phase transition for low densities of fundamental charges. As the density of fundamental charges becomes comparable to the adjoint charge density the phase transition...
متن کاملThe Coulomb gap and low energy statistics for Coulomb glasses
We study the statistics of local energy minima in the configuration space of two-dimensional lattice Coulomb glasses with site disorder and the behavior of the Coulomb gap depending on the strength of random site energies. At intermediate disorder, i.e., when the typical strength of the disorder is of the same order as the nearest-neighbor Coulomb energy, the high energy tail of the distributio...
متن کاملCompressibility crossover and quantum opening of a gap for two dimensional disordered clusters with Coulomb repulsion
Using Hartree-Fock orbitals with residual Coulomb repulsion, we study spinless fermions in a two dimensional random potential. When we increase the system size L at fixed particle density, the size dependence of the average inverse compressibility exhibits a smooth crossover from a 1/L towards a 1/L decay when the Coulomb energy to Fermi energy ratio rs increases from 0 to 3. In contrast, the d...
متن کاملpassivity in waiting for godot and endgame: a psychoanalytic reading
this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 1995
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.52.7857