Spin-Waves in Stoner Ferromagnetic Phase of a Two-Dimensional Electron System

2012 ◽  
Vol 190 ◽  
pp. 15-18
Author(s):  
A.H. Esmailian ◽  
F. Kanjouri ◽  
N. Mohammadi ◽  
M.R. Mahloojian ◽  
N. Abbasi
Keyword(s):  
Spin Waves ◽  
Random Phase ◽  
Three Dimensional ◽  
Electron System ◽  
Ferromagnetic Phase ◽  
Two Dimensional ◽  
Hartree Fock ◽  
Dimensional Electron System ◽  
Splitting Energy ◽  
Do So

We have studied the collective excitations (spin-wave energies) in the ground state of a two-dimensional (2D) electron system using the random phase approximation (RPA). To do so, we have calculated the magnetic transverse susceptibility in 2D electron system by Hartree-Fock (HF) approximation of Hubbard model at T=0 which is generally referred to as the Stoner model. The spin-waves dispersion of three-dimensional (3D) electron system due to its quadratic behavior starts from zero at q0 while our numerical results show that the spin-waves dispersion of 2D electron system starts from the value Δ, known as exchange splitting energy, even at q=0.

THE POLARON EFFECTS AND RELAXATION OF NON-EQUILIBRIUM ELECTRONS IN THE QUASI-TWO-DIMENSIONAL SYSTEMS

1991 ◽  
Vol 05 (02) ◽  
pp. 139-149 ◽  
Author(s):  
N.M. GUSEINOV ◽  
K.A. RUSTAMOV ◽  
S.M. SEYID-RZAYEVA
Keyword(s):  
Three Dimensional ◽  
Energy Shift ◽  
Electron System ◽  
Relaxation Processes ◽  
Electron Mass ◽  
Two Dimensional ◽  
Effective Electron ◽  
Dimensional Electron System ◽  
Analytical Expressions ◽  
Non Equilibrium

The problem on weak-coupling polaron in the quasi-two-dimensional electron system is solved. Analytical expressions for polaron energy shift of the subband and polaron contribution to the effective electron mass with arbitrary quantum well width are found. The expressions obtained give the well-known values for two- and three-dimensional limiting cases. A comparison of the polaron contribution to the mass with the available experimental data is carried out. Energy relaxation processes of non-equilibrium quasi-two-dimensional electrons with the optic phonon emission are also considered. General analytical expressions for the frequencies of intra-subband and inter-subband transitions for the threshold electron energy are obtained.

Resonant Photoluminescence of a Two-Dimensional Electron System upon the Formation of a Bulk 1/3 State of the Fractional Hall Effect

JETP Letters ◽  
2020 ◽  
Vol 112 (8) ◽  
pp. 485-490
Author(s):  
L. V. Kulik ◽  
A. S. Zhuravlev ◽  
E. I. Belozerov ◽  
V. A. Kuznetsov ◽  
I. V. Kukushkin
Keyword(s):  
Hall Effect ◽  
Electron System ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System

Resonant detection of microwave radiation in a circular two-dimensional electron system with quantum point contacts

2005 ◽  
Vol 87 (9) ◽  
pp. 092107 ◽  
Author(s):  
P. S. Dorozhkin ◽  
S. V. Tovstonog ◽  
S. A. Mikhailov ◽  
I. V. Kukushkin ◽  
J. H. Smet ◽  
...  
Keyword(s):  
Microwave Radiation ◽  
Electron System ◽  
Quantum Point Contacts ◽  
Two Dimensional ◽  
Point Contacts ◽  
Dimensional Electron ◽  
Dimensional Electron System ◽  
Quantum Point

scholarly journals Anticorrelation of compressibility and resistivity in a microwave-irradiated two-dimensional electron system

2020 ◽  
Vol 101 (19) ◽  
Author(s):  
Jian Mi ◽  
Long Zhang ◽  
Jianli Wang ◽  
Saeed Fallahi ◽  
Geoffrey C. Gardner ◽  
...  
Keyword(s):  
Electron System ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System

scholarly journals Two-dimensional electron system at the magnetically tunable EuO/SrTiO3 interface

2017 ◽  
Vol 1 (6) ◽  
Author(s):  
Patrick Lömker ◽  
Tobias C. Rödel ◽  
Timm Gerber ◽  
Franck Fortuna ◽  
Emmanouil Frantzeskakis ◽  
...  
Keyword(s):  
Electron System ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System

scholarly journals Hydrostatic pressure response of an oxide-based two-dimensional electron system

2016 ◽  
Vol 93 (23) ◽  
Author(s):  
J. Zabaleta ◽  
V. S. Borisov ◽  
R. Wanke ◽  
H. O. Jeschke ◽  
S. C. Parks ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Electron System ◽  
Pressure Response ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System

Charge transfer in an inhomogeneous two-dimensional electron system in the arrangement of Laughlin’s gedanken experiment

1993 ◽  
Vol 48 (11) ◽  
pp. 8480-8482 ◽  
Author(s):  
V. T. Dolgopolov ◽  
A. A. Shashkin ◽  
G. V. Kravchenko ◽  
S. I. Dorozhkin ◽  
K. von Klitzing
Keyword(s):  
Charge Transfer ◽  
Electron System ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Gedanken Experiment ◽  
Dimensional Electron System

Theory of Hall Effect in a Two-Dimensional Electron System

1975 ◽  
Vol 39 (2) ◽  
pp. 279-288 ◽  
Author(s):  
Tsuneya Ando ◽  
Yukio Matsumoto ◽  
Yasutada Uemura
Keyword(s):  
Hall Effect ◽  
Electron System ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Dimensional Electron System
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