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Magnetic Fabry-P\'erot interferometer for valley filtering in a honeycomb-dice model

Autor: Bouhadida, F., Mandhour, L., Charfi-Kaddour, S.

Publikováno v: Phys. Rev. B 102, 075443 (2020)

Here we theoretically investigate the valley-dependent transmission of particles through a combined electric and magnetic barrier in the $\alpha-T_3$ model which interpolates between the honeycomb and the dice lattices. We put forward that the combin

Externí odkaz: http://arxiv.org/abs/2003.08488

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Effect of the Fermi surface reconstruction on the self-energy of the copper-oxide superconductors

Autor: Bellafi, B., Azzouz, M., Charfi-Kaddour, S.

We calculated the self-energy corrections beyond the mean-field solution of the rotating antiferromagnetism theory using the functional integral approach. The frequency dependence of the scattering rate ${1}/{\tau}$ is evaluated for different tempera

Externí odkaz: http://arxiv.org/abs/1403.5106

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Role of the cooling rate in the stability of the superconducting phase of (TMTSF)_2ClO_4

Autor: Haddad, S., Sfar, I., Charfi-Kaddour, S., Bennaceur, R.

The noncentrosymmetric ClO$_4$ anions of the organic superconductor (TMTSF)$_2$ClO$_4$ order below 24K. The size of domains where the anions are ordered is substantially dependent on the cooling rate which is a key parameter for the stability of the

Externí odkaz: http://arxiv.org/abs/0709.1200

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Magnetic field induced singlet - triplet phase transition in quasi one-dimensional organic superconductors

Autor: Belmechri, N., Abramovici, G., Heritier, M., Haddad, S., Kaddour, S.

Publikováno v: EPL 80 37004 (6pp) 2007

We propose a theoretical model of quasi-one-dimensional superconductors, with attractive electron-electron interactions dominant in the singlet d-wave channel and sub-dominant in the p-wave channel. We discuss, in the mean field approximation, the ef

Externí odkaz: http://arxiv.org/abs/0709.0675

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Competing phases in the high field phase diagram of (TMTSF)$_2$ClO$_4$

Autor: Haddad, S., Charfi-Kaddour, S., Nickel, C., Héritier, M., Bennaceur, R.

A model is presented for the high field phase diagram of (TMTSF)$_2$ClO$_4$, taking into account the anion ordering, which splits the Fermi surface in two bands. For strong enough field, the largest metal-SDW critical temperature corresponds to the N

Externí odkaz: http://arxiv.org/abs/cond-mat/0207021

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