Electric Field Thermopower Modulation of 2D Electron Systems

2019 ◽  
pp. 97-120 ◽  
Author(s):  
Hiromichi Ohta
Keyword(s):  
Electric Field ◽  
Electron Systems

Properties of two-electron systems in an electric field

1997 ◽  
Vol 75 (1) ◽  
pp. 11-18 ◽  
Author(s):  
A K Bhatia ◽  
R J Drachman
Keyword(s):  
Electric Field ◽  
Electron Systems

NON-LINEAR TRANSPORT IN VERY HIGH LANDAU LEVELS OF TWO-DIMENSIONAL ELECTRON SYSTEMS

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2684-2688 ◽  
Author(s):  
M. A. ZUDOV ◽  
H.-S. CHIANG ◽  
A. T. HATKE ◽  
W. ZHANG ◽  
L. N. PFEIFFER ◽  
...  
Keyword(s):  
Electric Field ◽  
High Mobility ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Electron Transitions ◽  
Dc Electric Field ◽  
Phonon Absorption ◽  
Very High ◽  
Two Dimensional Electron Systems

We study magnetoresistivity oscillations induced by microwave radiation or acoustic phonons in high-mobility two-dimensional electron systems subject to dc electric field. In microwave-irradiated samples the response is governed by combined electron transitions, composed of microwave absorption and scattering off impurities. In non-irradiated samples, acoustic phonon resonances are tuned by dc electric field. Here, we show that in both experiments scattering off impurities without microwave or phonon absorption plays an important role and might even dominate the response.

scholarly journals Atomic manipulation of the gap in Bi2Sr2CaCu2O8+x

Science ◽  
2020 ◽  
Vol 367 (6473) ◽  
pp. 68-71 ◽  
Author(s):  
F. Massee ◽  
Y. K. Huang ◽  
M. Aprili
Keyword(s):  
Electric Field ◽  
Single Atom ◽  
Structural Defects ◽  
Scanning Tunneling ◽  
Electron Systems ◽  
Correlated Electron Systems ◽  
Correlated Electron ◽  
Atom Manipulation ◽  
Crystallographic Characteristics ◽  
Atomic Manipulation

Single-atom manipulation within doped correlated electron systems could help disentangle the influence of dopants, structural defects, and crystallographic characteristics on local electronic states. Unfortunately, the high diffusion barrier in these materials prevents conventional manipulation techniques. Here, we demonstrate the possibility to reversibly manipulate select sites in the optimally doped high-temperature superconductor Bi2Sr2CaCu2O8+x using the local electric field of the tip of a scanning tunneling microscope. We show that upon shifting individual Bi atoms at the surface, the spectral gap associated with superconductivity is seen to reversibly change by as much as 15 milli–electron volts (on average ~5% of the total gap size). Our toy model, which captures all observed characteristics, suggests that the electric field induces lateral movement of local pairing potentials in the CuO2 plane.

scholarly journals Nonlinear light absorption in many-electron systems excited by an instantaneous electric field: a non-perturbative approach

2021 ◽  
Vol 23 (16) ◽  
pp. 10059-10069
Author(s):  
Alberto Guandalini ◽  
Caterina Cocchi ◽  
Stefano Pittalis ◽  
Alice Ruini ◽  
Carlo Andrea Rozzi
Keyword(s):  
Optical Properties ◽  
Electric Field ◽  
Time Evolution ◽  
Cross Sections ◽  
Light Absorption ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Electron Systems ◽  
Perturbative Approach ◽  
The Cross

The time-evolution of many-electron systems induced by an electric field in the instantaneous limit is an effective tool for investigating computationally nonlinear optical properties. It works well also for those cases in which the convergence of the perturbative expansions of the cross sections is challenging.

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