We predict a new type of phase transition in a quasi-one-dimensional system of interacting electrons at high magnetic fields, the stabilization of a density wave which transforms a two-dimensional open Fermi surface into a periodic chain of large pockets with small distances between them. We show that quantum tunneling of electrons between the neighboring closed orbits enveloping these pockets transforms the electron spectrum into a set of extremely narrow energy bands and gaps that decreases the total electron energy, thus leading to a magnetic breakdown induced density wave ground state analogous to the well-known instability of the Peierls type
It is shown, for a small hole doping relative to half filling, that the large-U limit of the Hubbard...
We studied the structural instabilities of one-dimensional (1D) and quasi-one-dimensional (Q1D) elec...
International audienceTunneling amplitude through magnetic breakdown (MB) gap is considered for two-...
We predict a new type of phase transition in a quasi-two dimensional system of electrons a...
We predict a new type of phase transition in a quasi-one-dimensional system of interacting electrons...
We predict a mechanism of spontaneous stabilization of a uniaxial density wave in a two-dimensional ...
We show that Peierls instability leading to stripe patterns occurs in two-dimensional systems with n...
The adiabatic Holstein-Hubbard model describes electrons on a chain with step a interacting with the...
ABSTRACT Under certain conditions uniform magnetic chains are known to be unstable for a lattice dim...
International audienceThe effect of a magnetic field on the energy gap of the charge density wave (C...
A wide class of nanomagnets shows striking quantum behaviour, known as quantum spin tunnelling (QST)...
We show that there is pseudospin SU(2) symmetry in the one-dimensional tight-binding model with the ...
The density matrix renormalization group method is used to investigate the Peierls transition for th...
We study theoretically the lattice instability in the spin gap systems under magnetic field. With th...
Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically ...
It is shown, for a small hole doping relative to half filling, that the large-U limit of the Hubbard...
We studied the structural instabilities of one-dimensional (1D) and quasi-one-dimensional (Q1D) elec...
International audienceTunneling amplitude through magnetic breakdown (MB) gap is considered for two-...
We predict a new type of phase transition in a quasi-two dimensional system of electrons a...
We predict a new type of phase transition in a quasi-one-dimensional system of interacting electrons...
We predict a mechanism of spontaneous stabilization of a uniaxial density wave in a two-dimensional ...
We show that Peierls instability leading to stripe patterns occurs in two-dimensional systems with n...
The adiabatic Holstein-Hubbard model describes electrons on a chain with step a interacting with the...
ABSTRACT Under certain conditions uniform magnetic chains are known to be unstable for a lattice dim...
International audienceThe effect of a magnetic field on the energy gap of the charge density wave (C...
A wide class of nanomagnets shows striking quantum behaviour, known as quantum spin tunnelling (QST)...
We show that there is pseudospin SU(2) symmetry in the one-dimensional tight-binding model with the ...
The density matrix renormalization group method is used to investigate the Peierls transition for th...
We study theoretically the lattice instability in the spin gap systems under magnetic field. With th...
Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically ...
It is shown, for a small hole doping relative to half filling, that the large-U limit of the Hubbard...
We studied the structural instabilities of one-dimensional (1D) and quasi-one-dimensional (Q1D) elec...
International audienceTunneling amplitude through magnetic breakdown (MB) gap is considered for two-...