Naslov
New SDW and FISDW phases in quasi-one- dimensional metals with dimerization in low- conducting direction

Autori
Zanchi, Dražen ; Bjeliš, Aleksa ; Radić, Danko

Izvornik
Synthetic Metals (0379-6779) 137 (2003), 1-3; 1285-1286

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
many-body quasiparticle theories ; Hall effect ; magnetic phase transitions ; organic conductors ; Bechgaard salts

Sažetak
We study the spin-density-wave (SDW) instabilities in the quasi-one-dimensional metal (TMTSF)2ClO4 within the framework of matrix RPA for intra- and inter-band order parameters. Depending on the dimerizing potential V, two SDW orders are possible. Generally, at low V the system prefers inter- band order SDW0. At high V instability toward the intra-band SDW± dominates. For intermeiate V, of order of electron inter-chain hopping t, and zero magnetic field metallic state persists down to T=0. Putting the system in magnetic field both SDW0 and SDW± are restored and compete. In particular, for V/t<0.9 a field induced first order transition from SDW0 to SDW± takes place. For V/t>0.9 only SDW± is accessible from metallic phase.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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