Sur ce site

Sur le Web du CNRS

Accueil du site > Divers > Revaz Ramazashvili > Electron magnetism of antiferromagnetic conductors

Electron magnetism of antiferromagnetic conductors

par Revaz Ramazashvili - 9 mars

This is the subject of my very first papers, written in Russia as a masters student
of Serguei Brazovskii soon after the discovery of high-Tc superconductivity :

S. Brazovskii, I. Luk’yanchuk, and RR, JETP Letters 49, 644 (1989)

The parent compounds of the cuprates are antiferromagnetic Mott insulators, and thus a doped antiferromagnetic insulator has been at the center of much theoretical work on the subject ever
since the discovery of high-Tc.

Among other things, I had stumbled upon the possibility to excite electron spin resonance
transitions in a low carrier-density antiferromagnet by an electric rather than magnetic field :

RR, Sov. Phys. JETP 73, 505 (1991)

Curiously enough, I returned to this topic some twenty years later :

RR, Phys. Rev. Lett. 101, 137202 (2008)

RR, Phys. Rev. B 79, 184432 (2009)

RR, Phys. Rev. B 80, 054405 (2009)

RR, Phys. Rev. Lett. 105, 216404 (2010)