The modified Green function technique for the exterior Dirichlet problem in linear thermoelasticity

2018 ◽  
Vol 41 (7) ◽  
pp. 2811-2826
Author(s):  
Elias Argyropoulos ◽  
Eftychia Argyropoulou ◽  
Kiriakie Kiriaki
Keyword(s):  
Dirichlet Problem ◽  
Green Function ◽  
Function Technique ◽  
Linear Thermoelasticity

Theoretical Study on the Transport through a Quantum Dots Array with a Side Quantum Dot

2011 ◽  
Vol 340 ◽  
pp. 331-336
Author(s):  
Hai Tao Yin ◽  
Xiao Jie Liu ◽  
Wei Long Wan ◽  
Cheng Bao Yao ◽  
Li Na Bai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Function ◽  
Energy Level ◽  
Quantum Dot ◽  
Quantum Interference ◽  
Theoretical Study ◽  
Equation Of Motion ◽  
Function Technique ◽  
Motion Method ◽  
Linear Conductance

We studied transport properties through a noninteracting quantum dots array with a side quantum dot employing the equation of motion method and Green function technique. The linear conductance has been calculated numerically. It is shown that an antiresonance always pinned at the energy level of side quantum dot. The conductance develops Fano line shape when the side quantum dot level is not aligned with that of the quantum dots in the array due to quantum interference through different channels.

THE COMPENSATION BEHAVIOR AND INITIAL SUSCEPTIBILITIES OF A MIXED-SPIN HEISENBERG FERRIMAGNETIC SYSTEM IN AN EXTERNAL MAGNETIC FIELD

2007 ◽  
Vol 21 (07) ◽  
pp. 1077-1087 ◽  
Author(s):  
JUN LI ◽  
AN DU ◽  
GUOZHU WEI
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Transition Temperature ◽  
External Magnetic Field ◽  
Green Function ◽  
Compensation Point ◽  
Function Technique ◽  
Honeycomb Lattice ◽  
Mixed Spin ◽  
Compensation Behavior

The magnetic properties of a mixed spin-2 and spin-5 / 2 Heisenberg ferrimagnetic system on a layered honeycomb lattice are investigated theoretically by a multisublattice Green-function technique which takes into account the quantum nature of Heisenberg spins. We calculate the magnetization and the compensation temperature and transition temperature of the system in an external magnetic field and in a zero external magnetic field, and find that the transition temperature of the system increases on the effect of an external magnetic field, the compensation point disappears when the single-ion anisotropy is not large and there are two compensation points when the anisotropy is large. We also calculate the initial susceptibilities of the system.

Electron correlations in narrow energy bands

1963 ◽  
Vol 276 (1365) ◽  
pp. 238-257 ◽  
Keyword(s):  
Approximate Solution ◽  
Green Function ◽  
Approximate Model ◽  
Function Technique ◽  
Electron Correlations ◽  
Energy Bands ◽  
Hartree Fock ◽  
Correlation Problem ◽  
Main Effects ◽  
London Model

It is pointed out that one of the main effects of correlation phenomena in d - and f -bands is to give rise to behaviour characteristic of the atomic or Heitler-London model. To investigate this situation a simple, approximate model for the interaction of electrons in narrow energy bands is introduced. The results of applying the Hartree-Fock approximation to this model are examined. Using a Green function technique an approximate solution of the correlation problem for this model is obtained. This solution has the property of reducing to the exact atomic solution in the appropriate limit and to the ordinary uncorrelated band picture in the opposite limit. The condition for ferromagnetism of this solution is discussed. To clarify the physical meaning of the solution a two-electron example is examined.

A NEW STUDY OF THE SURFACE ELECTRONIC STRUCTURE OF W(001)

1994 ◽  
Vol 01 (04) ◽  
pp. 685-688
Author(s):  
JEROEN VAN HOOF ◽  
JOHN E. INGLESFIELD ◽  
IAN COLLINS
Keyword(s):  
Electronic Structure ◽  
Green Function ◽  
Surface Reconstruction ◽  
Electronic Structure Calculations ◽  
The State ◽  
Function Technique ◽  
Surface Electronic Structure ◽  
Structure Calculations

We have performed surface electronic structure calculations for W(001) using the surfaceembedded Green function technique. These calculations enable us to interpret angle-resolved photoemission spectra, which play an important role in the controversy over the surface reconstruction of W(001). We show that the state which, according to most theories, plays a key role in driving the reconstruction is apparently invisible in the photoemission spectra, because of its in-plane character.

Recursive Green function technique applied to acoustic wave propagation

2001 ◽  
Vol 109 (5) ◽  
pp. 2353-2353
Author(s):  
Mauro S. Ferreira ◽  
Gerrit E. W. Bauer ◽  
Kees Wapenaar
Keyword(s):  
Wave Propagation ◽  
Green Function ◽  
Acoustic Wave ◽  
Function Technique ◽  
Acoustic Wave Propagation
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