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Author | Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. | ||||
Title | Electromechanical noise in a diffusive conductor | Type | Journal Article | ||
Year | 2002 | Publication | Phys. Rev. Lett. | Abbreviated Journal | Phys. Rev. Lett. |
Volume | 88 | Issue | 22 | Pages | |
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Abstract | Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order l/L for shear fluctuations and (xi/L)^2 for pressure fluctuations. The excitation of an elastic bending mode by the shear fluctuations is estimated to fall within current experimental sensitivity for a nanomechanical oscillator. | ||||
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ISSN | 0031-9007 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | RPLAB @ s @ | Serial | 433 | ||
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