Field induced spin density wave phases in (TMTSF)$ _{2}$ClO$_{4}$ at high magnetic field

摘要: We propose a model to study the spin density wave (SDW) phases under high magnetic field in relaxed (TMTSF) 2 ClO 4 salt where - anions undergoe an orientational ordering transition. This opens gap at original Fermi surface and leads two band energy spectrum. show that, regime, competition takes place between interband intraband SDW order parameters. find that component has always highest critical temperature but it is due coexisting coexistence tends destabilize corresponding phase as decreases. Eventually, first transition from new originating processes. The obtained results agree with experimental diagram.