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From antidot to dot superlattices: Magnetoresistance anomalies

Rotter, Peter, Hennig, Ralf, Suhrke, Michael and Rössler, Ulrich (1998) From antidot to dot superlattices: Magnetoresistance anomalies. Physica E 1 (1-4), pp. 245-247.

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Other URL: http://dx.doi.org/10.1016/S1386-9477(97)00052-0


For low Fermi energies and large antidot diameters an antidot superlattice changes into a dot superlattice. A negative magnetoresistance (NMR) for low magnetic fields coexisting with a commensurability peak is observed in this transition regime. We reproduce these features for both classical and quantum-mechanical calculations in a model, which traces the NMR back to saddle points with varying heights between the antidots.

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Item type:Article
Date:January 1998
Institutions:Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Ulrich Rössler
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Keywords:Antidots; Negative magnetoresistance; Commensurability peaks
Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:1386
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