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pro vyhledávání: '"Minette M. Mohan"'
Autor:
Minette M. Mohan
Publikováno v:
Solid State Communications. 94:1-4
The ground state energy E of a single hole in the Neel state in two and three dimensions has been calculated in a simple manner using an expression for the many-body potential v(r), which is best for short strings created by the hole in the backgroun
Autor:
Minette M. Mohan
Publikováno v:
Physical Review B. 48:12478-12482
A closed expression is obtained for the pair-correlation function of a polymer system consisting of a charged core surrounded by solute ions in solution. Two propagating modes are predicted from microscopic theory. The first can be detected by microw
Autor:
Minette M. Mohan
Publikováno v:
Physical Review B. 46:3405-3409
I show damping in the two-dimensional strongly correlated Hubbard model within the retraceable-path approximation, using an expansion around dominant poles for the self-energy. The damping half-width α J 2/3 z occurs only at positive frequencies ω>
Autor:
Minette M. Mohan
Publikováno v:
Physical Review B. 36:7693-7696
Autor:
Y. Lépine, Minette M. Mohan
Publikováno v:
Physical Review B. 38:11602-11606
Within the framework of the perturbation expansion of the linear-chain Hubbard model to fourth order in t/U, we consider the effect of second-neighbor interactions \ensuremath{\propto}(t/U${)}^{4}$ on the spin-Peierls transition temperature ${T}_{c}$
Autor:
Minette M. Mohan
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 5:145-150
A pair trapping mechanism for holes in a triangular potential well arising from a “string” of shifted spins is discussed in the context of experiments and related theories of the new high-Tc superconductors. The mechanism involves anisotropic sin
Autor:
Minette M. Mohan
Publikováno v:
Physical Review B. 34:8915-8921
We derive an exact expression for the structure factor S(Q), at all wave numbers Q, for a single linear chain of N atoms fixed at both ends. The effect of finite size for given N on the peaks in S(Q) is most pronounced for the lowest values of the qu
Autor:
Allan Griffin, Minette M. Mohan
Publikováno v:
Physical Review B. 32:2030-2035
Following Williams and Bloch, we consider the random-phase-approximation electronic response function of an array of parallel chains, treating the chains as cylindrical potentials of radius r/sub 0/. A careful discussion is given of the form-factored
Autor:
Allan Griffin, Minette M. Mohan
Publikováno v:
Physical Review B. 32:4201-4203
At room temperature, the mercury chains in Hg/sub 3-delta/AsF/sub 6/ exhibit phonons characteristic of a one-dimensional lattice. We calculate the screening of the Hg ion-ion interaction in a single chain by electrons moving in a cylindrical potentia
Autor:
Minette M. Mohan
Publikováno v:
Physical review. B, Condensed matter. 39(16)
The ac conductivity of the strongly correlated single-band Hubbard model, in the limit of small carrier concentration is calculated over the /ital entire/ frequency spectrum for temperatures much less than the bandwidth ..delta.., using the retraceab