Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
A variational approach for the two-dimensional magnetopolaron
Date
1989-12-18
Author
Erçelebi, Atila
Saqqa, Bassam H.
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
214
views
0
downloads
Cite This
The problem of a two-dimensional magnetopolaron is investigated on the basis of a variational theory consisting of an adiabatic polaronic wavefunction combined with a perturbative correction by which it is possible to interrelate the strong and weak coupling counterparts of the coupled electron-phonon system. It is seen that the theory conveniently reproduces the desirable asymptotic limits in the different regimes of the problem. Furthermore, it is suggested that a satisfying improvement should be achieved if one adopts a suitably modified coherent phonon state operator which takes into account the fractional admixture of whether the lattice deformation tends to cover the entire Landau orbit or the mean electron position.
Subject Keywords
General material science
,
Condensed matter physics
URI
https://hdl.handle.net/11511/51706
Journal
Journal of Physics: Condensed Matter
DOI
https://doi.org/10.1088/0953-8984/1/50/010
Collections
Department of Physics, Article
Suggestions
OpenMETU
Core
A gauge model of amorphous solids containing defects
Dereli, Tekin; Vercin, Abdullah (Informa UK Limited, 1987-11)
A gauge model of amorphous solids is formulated as a theory of connection in the orthonormal-frame bundle over the body manifold with the structure group SO(3). The construction of free-energy integrals and the properties of maximally symmetric configurations are discussed.
A new empirical many-body potential energy function application to microclusters: elements in B.C.C., F.C.C., and H.C.P. structures
Erkoç, Sevilay (Wiley, 1989-10-1)
A new empirical many‐body potential energy function (PEF) has been proposed recently, and it has been successfully applied to microclusters of various elements. Using the new PEF the microcluster calculations are extended to several elements in b.c.c., f.c.c., and h.c.p. structures.
A variational multiscale constitutive model for nanocrystalline materials
Gürses, Ercan (Elsevier BV, 2011-03-01)
This paper presents a variational multi-scale constitutive model in the finite deformation regime capable of capturing the mechanical behavior of nanocrystalline (nc) fcc metals. The nc-material is modeled as a two-phase material consisting of a grain interior phase and a grain boundary effected zone (GBAZ). A rate-independent isotropic porous plasticity model is employed to describe the GBAZ, whereas a crystal-plasticity model which accounts for the transition from partial dislocation to full dislocation m...
THE GROUND-STATE DESCRIPTION OF THE OPTICAL POLARON VERSUS THE EFFECTIVE DIMENSIONALITY IN QUANTUM-WELL-TYPE SYSTEMS
YILDIRIM, T; Erçelebi, Ayşe Çiğdem (IOP Publishing, 1991-03-11)
Within the framework of the strong-coupling polaron theory the ground-state binding energy and the effective mass of the electron-LO phonon system is retrieved as a function of the effective dimensionality in a quantum-well confinement. The geometry we use is a three-dimensional parabolic potential box, the barrier slopes of which can be tuned so as to yield a unified characterization interpolating between the bulk, the quasi-two- and one-dimensional limits as well as the quantum-well box case.
A density functional theory study on the structures and energetics of CdmTen clusters (m + n <= 6)
Pekoz, Rengin; Erkoç, Şakir (Elsevier BV, 2009-06-01)
Density functional method has been used to study the structural features and energetics of CdmTen clusters (m + n <= 6). The results presented include the geometric structures, binding energies, Mulliken charges on atoms, vibrational frequencies and the corresponding non-zero infrared intensities, HOMO-LUMO energies and the frontier molecular orbital energy gaps, the most possible dissociation channels and their corresponding energies of the clusters.
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Erçelebi and B. H. Saqqa, “A variational approach for the two-dimensional magnetopolaron,”
Journal of Physics: Condensed Matter
, pp. 10081–10087, 1989, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51706.