scholarly journals Symmetry-dependent electron-electron interaction in coherent tunnel junctions resolved by measurements of zero-bias anomaly

2014 ◽  
Vol 90 (19) ◽  
Author(s):  
Liang Liu ◽  
Jiasen Niu ◽  
Li Xiang ◽  
Jian Wei ◽  
D.-L. Li ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Electron Interaction ◽  
Zero Bias ◽  
Zero Bias Anomaly

Zero-Bias Anomaly in Irradiated Pb-GaAs Tunnel Junctions, and the Mott Transition

1971 ◽  
Vol 27 (10) ◽  
pp. 664-667 ◽  
Author(s):  
Nabih A. Mora ◽  
Stuart Bermon ◽  
J. J. Loferski
Keyword(s):  
Tunnel Junctions ◽  
Mott Transition ◽  
Zero Bias ◽  
Zero Bias Anomaly

Zero‐bias anomaly in GaAs/Mo tunnel junctions

1974 ◽  
Vol 45 (6) ◽  
pp. 2579-2581 ◽  
Author(s):  
B. R. Sood ◽  
Y. L. Pak
Keyword(s):  
Tunnel Junctions ◽  
Zero Bias ◽  
Zero Bias Anomaly

TUNNELING ZERO-BIAS ANOMALY IN THE ULTRA-QUANTUM LIMIT

2002 ◽  
Vol 16 (20n22) ◽  
pp. 2968-2971
Author(s):  
D. L. MASLOV ◽  
S.-W TSAI ◽  
L. I. GLAZMAN
Keyword(s):  
Intermediate Energy ◽  
Quantum Limit ◽  
Electron Interaction ◽  
Coupling Constant ◽  
Unusual Behavior ◽  
Range Interaction ◽  
Zero Bias ◽  
Long Range Interaction ◽  
Friedel Oscillation ◽  
Zero Bias Anomaly

Effects of the electron-electron interaction on tunneling into a metal in a very strong magnetic field (ultra-quantum limit) are considered. It is shown that for short-range repulsive interactions, tunneling is dominated by the renormalization of the coupling constant leading eventually to the CDW instability. Near the gap, the conductance gT assumes a universal form. For the long-range interaction, there exists an intermediate energy EPL such that for Δ ≪ E ≤ EPL the conductance obeys a power-law scaling form, similar to that of a 1D Luttinger liquid. For smaller energies, scaling breaks down and gT is again dominated by the CDW-instability. It is also shown that the energy dependence of gT may be non-monotonic: whereas gT is always suppressed by the interaction at lower energies, at higher energies it may also be enhanced above its non-interacting value. Such an unusual behavior gets a natural explanation in terms of multiple scattering from the Friedel oscillation near the surface.

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