High-field studies of the slow thermal death of interlayer coherence in quasi-two-dimensional metals

High-field studies of the slow thermal death of interlayer coherence in quasi-two-dimensional metals

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The interlayer magnetoresistance sigma(zz) of the organic metal kappa-(BEDT-TTF)(2)Cu(NCS)(2) has been studied in fields B of up to 45 T and at temperatures T from 0.5 K to 50 K. The peak in rho(zz) seen in exactly in-plane fields, a definitive signature of interlayer coherence, remains to Ts exceed...

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Dettagli Bibliografici
Autori principali: Singleton, J, Goddard, P, Ardavan, A, Bangura, A, McDonald, R, Schlueter, J
Natura: Conference item
Pubblicazione: 2006
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Riassunto:The interlayer magnetoresistance sigma(zz) of the organic metal kappa-(BEDT-TTF)(2)Cu(NCS)(2) has been studied in fields B of up to 45 T and at temperatures T from 0.5 K to 50 K. The peak in rho(zz) seen in exactly in-plane fields, a definitive signature of interlayer coherence, remains to Ts exceeding the Anderson criterion for incoherent transport by a factor similar to 25. Angle-dependent magnetoresistance oscillations (AMROs) due to Fermi-surface orbits are suppressed by rising T, with a T-2 dependence suggesting electron-electron scattering.

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