منابع مشابه
Tunneling in a magnetic field
Quantum tunneling between two potential wells in a magnetic field can be strongly increased when the potential barrier varies in the direction perpendicular to the line connecting the two wells and remains constant along this line. An oscillatory structure of the wave function is formed in the direction joining the wells. The resulting motion can be coherent like motion in a conventional narrow...
متن کاملTunneling decay in a magnetic field
We provide a semiclassical theory of tunneling decay in a magnetic field and a three-dimensional potential of a general form. Because of broken time-reversal symmetry, the standard WKB technique has to be modified. The decay rate is found from the analysis of the Hamilton trajectories of the particle in complex phase space and time. In a magnetic field, the tunneling particle comes from beneath...
متن کاملHigh magnetic field tunneling transport in a double quantum well-triple barrier resonant tunneling diode
We have measured the magnetotransport of double GaAs quantum well-triple AlAs barrier resonant tunneling heterostructures in pulsed magnetic fields up to 48 T, and temperatures down to 0.3 K. The tunneling structure is designed for a near-simultaneous (triple) resonance, under bias, of the quantum well energy levels and the lowest quasi-2D emitter state. The fan chart of the I(V) resonances is ...
متن کاملRipplon-induced tunneling transverse to the magnetic field
We analyze single-electron tunneling from the bound state above the surface of liquid helium. For strong enough magnetic fields parallel to the surface, the tunneling must be accompanied by ripplon scattering. The effective width of the tunneling barrier strongly and nonmonotonically depends on the momentum transferred to ripplons. The escape rate is affected by Landau quantization of the state...
متن کاملTransverse magnetic field effects on the resonant tunneling current
Resonant tunneling process in an (InGa)As-(InAl)As syInrnetric double-barrier
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2006
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.73.052106