A ug 2 00 1 Anomalous beating phase of the oscillating interlayer magnetoresistance in layered metals
نویسنده
چکیده
We analyze the beating behavior of the magnetic quantum oscillations in a layered metal under the conditions when the cyclotron energy h̄ωc is comparable to the interlayer transfer energy t. We find that the positions of the beats in the interlayer resistance are considerably shifted from those in the magnetization oscillations, and predict that the shift is determined by the ratio h̄ωc/t. A comparative study of the Shubnikov-de Haas and de Haas-van Alphen effects in the quasi-two-dimensional organic metal β-(BEDT-TTF)2IBr2 appears to be consistent with the theoretical prediction.
منابع مشابه
Slow oscillations of magnetoresistance in quasi-two-dimensional metals.
Slow oscillations of the interlayer magnetoresistance observed in the layered organic metal beta-(BEDT-TTF)(2)IBr(2) are shown to originate from the slight warping of its Fermi surface rather than from independent small cyclotron orbits. Unlike the usual Shubnikov-de Haas effect, these oscillations are not affected by the temperature smearing of the Fermi distribution and can therefore become d...
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