Observing the Berry phase in diffusive conductors : necessary conditions for adiabaticity

Loss, D. and Schoeller, H. and Goldbart, P. M.. (1999) Observing the Berry phase in diffusive conductors : necessary conditions for adiabaticity. Physical Review B, Vol. 59, H. 20. pp. 13328-13337.

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Official URL: http://edoc.unibas.ch/dok/A5254757

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We investigate Berry phase effects in the magnetoconductance of diffusive systems, and determine the precise criterion for adiabaticity within the weak-localization formalism. We show that the exact solution of the Cooperon propagator for the special case of a cylindrically symmetric texture agrees with the adiabatic approximation in the adiabatic limit characterized by tau much greater than(1/d)(l(2)/L-2). We point out that orientational inhomogeneities in the magnetic field induce dephasing effects that can mask the Berry phase (and any other phase-coherent phenomena) for certain parameter values of system and field.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:48

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