Frictional drag between spatially separated two-dimensional electron gases mediated by virtual phonon exchange
Samvel M. Badalyan, Ulrich Roessler
Abstract
We have calculated the frictional drag between spatially separated quantum wells with parallel two-dimensional electron gases due to interlayer electron-electron interaction mediated by virtual exchange of acoustic phonons due to piezoelectric and deformation potential interaction. It is shown that the frictional drag is dominated by the piezoelectric coupling. According to our calculations temperature dependence of the drag scattering rate divided by squared temperature T exhibits a pronounced peak which for the experimental situation and in agreement with the finding of T. J. Gramila, et al., Phys. Rev. B 47, (1993) 12957 is obtained at about T=2.1 K. We ascribe the appearance of this peak to a change from small to large angle scattering in the virtual phonon exchange.
Create a lesson
Related papers
Real-space obstruction control of the shift current in two-dimensional Quantum Spin Hall insulators
Michele Bagaglini, Mattia Iannetti, Jonas Erhardt et al.
Interlayer Registry Controls Polar Topology in Twisted Bilayer h-BN
Di Fan, Changming Ke, Shi Liu
Theoretical Investigation of Oxygen-Vacancy Diffusion in SrTiO3 using Neural Network Potentials
Kazutaka Nishiguchi, Ryota Yamamoto, Seiichiro Ten-no
Modelling the dynamics of the martensitic transformation in Ni2MnGa with machine-learning force-fields
Markus E. Gruner, Yulia Klunnikova, Mike J. Bruckhoff et al.
Decoupling Trap States in Amorphous Oxide Semiconductor Transistor Using a Conductive-Semiconducting-Conductive MOS Structure
Kai Chen, Wei Zhang, Xuanyao Fong et al.
Angle-Resolved Photoemission as a Sensitive Probe of Surface Quality: Sputtered versus Annealed Cu(001)
Hyeonhee Na, Jeonghwan Oh, Jinju Lee et al.