Quantum oscillations in quasi-one-dimensional metals with spin-density-wave ground states

TitleQuantum oscillations in quasi-one-dimensional metals with spin-density-wave ground states
Publication TypeJournal Article
Year of Publication1999
AuthorsBrooks, J. S., O'Brien J., Starrett R. P., Clark R. G., McKenzie Ross H., Han S. Y., Qualls J. S., Takasaki S., Yamada J., Anzai H., Mielke C. H., and Montgomery L. K.
JournalPhysical Review B-Condensed Matter
Volume59
Issue4
Pagination2604–2608
AbstractWe consider the magnetoresistance oscillation phenomena in the Bechgaard salts (TMTSF)(2)X, where X = ClO4, PF6, and AsF6 in pulsed magnetic fields to 51 T. Of particular importance is the observation of a new magnetoresistance oscillation for X = ClO4 in its quenched state. In the absence of any Fermi-surface reconstruction due to anion order at low temperatures, all three materials exhibit nonmonotonic temperature dependence of the oscillation amplitude in the spin-density-wave (SDW) state. We discuss a model where, below a characteristic temperature T* within the SDW state, a magnetic breakdown gap opens. [S0163-1829(99)00904-2].