scholarly journals Observation of a two-dimensional electron gas at the surface of annealed SrTiO3single crystals by scanning tunneling spectroscopy

2012 ◽  
Vol 86 (15) ◽  
Author(s):  
R. Di Capua ◽  
M. Radovic ◽  
G. M. De Luca ◽  
I. Maggio-Aprile ◽  
F. Miletto Granozio ◽  
...  
Keyword(s):  
Electron Gas ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas

scholarly journals Spin-Resolved Quantum Scars in Confined Spin-Coupled Two-Dimensional Electron Gas

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1258
Author(s):  
Michael Berger ◽  
Dominik Schulz ◽  
Jamal Berakdar
Keyword(s):  
Level Density ◽  
Electron Gas ◽  
High Energy ◽  
Scanning Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Spin Polarized ◽  
Dimensional Electron Gas

Quantum scars refer to an enhanced localization of the probability density of states in the spectral region with a high energy level density. Scars are discussed for a number of confined pure and impurity-doped electronic systems. Here, we studied the role of spin on quantum scarring for a generic system, namely a semiconductor-heterostructure-based two-dimensional electron gas subjected to a confining potential, an external magnetic field, and a Rashba-type spin-orbit coupling. Calculating the high energy spectrum for each spin channel and corresponding states, as well as employing statistical methods known for the spinless case, we showed that spin-dependent scarring occurs in a spin-coupled electronic system. Scars can be spin mixed or spin polarized and may be detected via transport measurements or spin-polarized scanning tunneling spectroscopy.

Tunneling spectroscopy in barrier-separated two-dimensional electron-gas systems

1991 ◽  
Vol 44 (7) ◽  
pp. 3090-3104 ◽  
Author(s):  
W. Demmerle ◽  
J. Smoliner ◽  
G. Berthold ◽  
E. Gornik ◽  
G. Weimann ◽  
...  
Keyword(s):  
Electron Gas ◽  
Tunneling Spectroscopy ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas
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