Negative hopping magnetoresistance of two-dimensional electron gas in a smooth random potential.

@article{Raikh1995NegativeHM,
  title={Negative hopping magnetoresistance of two-dimensional electron gas in a smooth random potential.},
  author={Raikh and Glazman},
  journal={Physical review letters},
  year={1995},
  volume={75 1},
  pages={
          128-131
        }
}
  • Raikh, Glazman
  • Published 4 May 1995
  • Physics, Medicine
  • Physical review letters
We show that the tunnel coupling between semiclassical states localized in different minima of a smooth random potential increases when magnetic field is applied. This increase originates from the difference in gauge factors which electron wave functions belonging to different electron “lakes” acquire in the presence of the field. In the common case of a narrow barrier between two lakes, the characteristic magnetic field is determined by the area of the lakes, and thus may be quite small. The… 
Negative magnetoresistance in the regime of hopping conduction through p states at quantum dots
The magnetoresistance in the system of quantum dots with hopping conduction and filling factor 2 < ν < 3 in the limit of small quantum dots has been considered. In this case, hopping conduction is
Magnetoresistance in the variable-range hopping conduction regime in diluted arrays of quantum dots with the filling factor 2 < η < 3
Magnetoresistance mechanisms in an array of quantum dots with hopping conduction, which is determined by electronic states with the orbital angular momentum l = 1, and filling factor 2 < ν < 3 have
Magnetic-field-induced Coulomb blockade in small disordered delta-doped heterostructures
At low densities, electrons confined to two dimensions in a delta-doped heterostructure can arrange themselves into self-consistent droplets due to disorder and screening effects. We use this
Role of electron “lakes” in the negative magnetoresistance effect in the region of Mott hopping conductivity
It is shown for doped and compensated germanium that the appearance of negative magnetoresistance under the conditions of Mott hopping conductivity may be due to the presence of a nonuniform spatial
Magnetic-field dependence of the hopping conduction of electrostatically disordered quasi-2D semiconductor systems under the conditions for the insulator-metal percolation transition
Lateral conductance G of the metal-nitride-oxide-silicon mesoscopic transistor structures with the inversion n channel and a relatively high (no less than 1013 cm−2) concentration of integrated
Two-dimensional semimetal in HgTe quantum well under hydrostatic pressure
We report results of systematic measurements of charge transport properties of the 20.5nm wide HgTe-based quantum well in perpendicular magnetic field, performed under hydrostatic pressures up to
Negative magnetoresistance and impurity band conduction in an In0.53Ga0.47As/InP heterostructure
The electrical conduction in an n-type In0.53Ga0.47As/InP sample grown by molecular beam epitaxy has been analyzed in the magnetic field up to 1.5 T, at temperatures from 15 to 295 K. The electrical
Negative magnetoresistance of heavily doped silicon p-n junction
At the liquid helium temperature and under application of magnetic fields up to 9.4 T, a voltage drop across a silicon diode with metallic conductivity of the emitter and base has been measured under
Weak-localization corrections to the conductivity of double quantum wells
The weak-localization contribution (B ) to the conductivity of a tunnel-coupled double-layer electron system is evaluated and its behaviour in weak magnetic fields B perpendicular or parallel to the
Theoretical study of magnetoresistance for granular metals in the hopping regime
We present a theoretical study of magnetoresistance for granular metals deep in the hopping regime, in the limit of large metal/insulator volume ratio, within the framework of coherent electron
...
1
2
3
...

References

SHOWING 1-10 OF 23 REFERENCES
Electronic Properties of Doped Semi-conductors
First-generation semiconductors could not be properly termed "doped- they were simply very impure. Uncontrolled impurities hindered the discovery of physical laws, baffling researchers and evoking
Chaos in classical and quantum mechanics
Contents: Introduction.- The Mechanics of Lagrange.- The Mechanics of Hamilton and Jacobi.- Integrable Systems.- The Three-Body Problem: Moon-Earth-Sun.- Three Methods of Section.- Periodic Orbits.-
Quantum mechanics
Quantum Mechanics for Organic Chemists.By Howard E. Zimmerman. Pp. x + 215. (Academic: New York and London, May 1975.) $16.50; £7.90.
Higher Transcendental Functions
Higher Transcendental FunctionsBased, in part, on notes left by the late Prof. Harry Bateman, and compiled by the Staff of the Bateman Project. Vol. 1. Pp. xxvi + 302. 52s. Vol. 2. Pp. xvii + 396.
Pis’ma Zh
  • Eksp. Teor. Fiz. 41, 35 (1985)[JETP Lett. 41, 42 (1985)]; Zh. Eksp. Teor. Phys. 89, 1170 (1985) [Sov. Phys. JETP 62, 1021
  • 1985
FIGURES FIG. 1. Two electronic lakes separated by a saddle point (a), and the schematic potential profile in the crossection y=0 (b)
  • Phys. Rev. Lett
  • 1994
Phys
  • Rev. Lett. 72, 1439
  • 1994
Phys
  • Rev. Lett. 73, 2111
  • 1994
Phys. Rev. Lett
  • Phys. Rev. Lett
  • 1994
Phys
  • Rev. B 46, 12830 (1992); H. W. Jiang, C. E. Johnson, K. L. Wang, and S. T. Hannahs, Phys. Rev. Lett. 71, 1439
  • 1993
...
1
2
3
...