Browsing by Author "Koc, H."
Now showing items 1-15 of 15
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Ab initio modeling of elastic and optical properties of Sb and Bi sesquioxides
(Institute of Physics Publishing, 2018)First-principle calculations performed the structural, mechanical, electronic, and optical properties of Sb2O3 and Bi2O3 compounds in monoclinic (claudetite and α-Bi2O3) and orthorhombic (valentinite) structures. Local ... -
Band gap and optical transmission in the Fibonacci type one-dimensional A5B6C7 based photonic crystals
(Wiley-VCH Verlag, 2015)In this work, we present an investigation of the optical properties and band structure calculations for the photonic crystal structures (PCs) based on one-dimensional (1D) photonic crystal. Here we use 1D A5B6C7(A:Sb; ... -
Dynamic nonlinear optical processes in some oxygen-octahedra ferroelectrics: first principle calculations
(Taylor & Francis Inc., 2015)The nonlinear optical properties and electro-optic effects of some oxygen-octahedra ferroelectrics are studied by the density functional theory (DFT) in the local density approximation (LDA) expressions based on first ... -
Electron spectroscopy and the electronic structure of KNbO3: First principle calculations
(Taylor & Francis Online, 2014)The electronic structures of KNbO3were calculated within the density functional theory, and their evolution was analyzed as the crystal-field symmetry changes from cubic to rhombohedral via tetragonal phase. We carried out ... -
Extramedullary relapse following allogeneic stem cell transplantation in acute promyelocytic leukemia: the role of ATRA
(Fondazione Ferrata Storti, 2001) -
Frequent demonstration of human herpesvirus 8 (HHV-8) in bone marrow biopsy samples from Turkish patients with multiple myeloma (MM)
(Nature Publishing, 2001)In order to investigate the frequency of HHV-8 in MM patients from another geographic location, we obtained fresh bone marrow (BM) biopsies from Turkish patients with MM (n = 21), monoclonal gammopathy of undetermined ... -
The mechanical, electronic and optical properties of Sn2P2S6 compound in different phases
(Taylor & Francis, 2021-12-01)In present paper, the structural, mechanical, and electronic properties of the Sn2P2S6 compound under different pressures by the density functional methods in the generalized gradient approximation have been examined in ... -
Mechanical, electronic, and optical properties of Bi2S3 and Bi2Se3 compounds: first principle investigations
(Springer Berlin Heidelberg, 2014)The structural, mechanical, electronic, and optical properties of orthorhombic Bi2S3 and Bi2Se3 compounds have been investigated by means of first principles calculations. The calculated lattice parameters and internal ... -
Mechanical, electronic, and optical properties of the A4B6 layered ferroelectrics: ab initio calculation
(Wiley, 2015)We have performed a first principles study of the structural, elastic and electronic properties of orthorhombic SnS and GeS compounds using the density functional theory within the local density approximation. The second-order ... -
Optical and magnetic properties of some XMnSb and Co2YZ compounds: ab initio calculations
(Wiley-VCH Verlag, 2017)In present work, our research is mainly focused on the electronic structures, optical, and magnetic properties of XMnSb (X = Ni, Cu, Pd), Co2YZ (Y = Ti; Z=Si, Ge, Sn), and Co2YZ (Y =Mn; Z=Al, Ga, Si) Heusler compounds by ... -
Optical properties and electronic band structure of topological insulators (on A5 2B6 3 compound based)
(Taylor & Francis, 2013-09-20)We have performed a first principles study of structural, electronic, and optical properties of rhombohedral Sb2Te3 and Bi 2Te3 compounds using the density functional theory within the local density approximation. The ... -
Optical properties of the narrow-band ferroelectrics: first principle calculations
(Taylor & Francis Inc., 2015)Based on density functional theory, we have studied the electronic, and optical properties of narrow-band ferroelectric compounds - (Ge,Sn) Te. Generalized gradient approximation has been used for modeling exchange-correlation ... -
Optical, electronic, and elastic properties of some A5B6C7 ferroelectrics (A=Sb, Bi; B=S, Se; C=I, Br, Cl): first principle calculation
(Taylor and Francis Inc., 2017)In present paper, we focus on the structural, mechanical, electronic, and optical properties for the A5B6C7(A = Sb, Bi; B = Te, Se; S; C = I, Br, Cl) compounds using the density functional methods in generalized gradient ... -
Slater insulator phase of X2 (X = Na, Li)IrO3: first principles calculation
(Taylor & Francis, 2021-12-01)In the present work, the structural, electronic and mechanical properties of Na2IrO3 and Li2IrO3 have been investigated by means of first principles calculations. The spin polarized generalized gradient approximation has ... -
Topological Insulators: Electronic Band Structure and Spectroscopy
(Institute of Physics Publishing, 2017)In this study, we present the results of our ab initio calculation of the elastic constants, density of states, charge density, and Born effective charge tensors for ferroelectric (rhombohedral) and paraelectric phases ...
