Roman Golovchak

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Andriy KovalskiyProfessor of Physics, Austin Peay State UniversityVerified email at apsu.edu
Himanshu JainLehigh UniversityVerified email at lehigh.edu
Andrzej KozdrasOpole University of Technology, Faculty of PhysicsVerified email at po.opole.pl
Adam IngramOpole University of TechnologyVerified email at opole.pl
Yaroslav ShpotyukIvan Franko National University of LvivVerified email at lnu.edu.ua
Justin OelgoetzAustin Peay State UniversityVerified email at apsu.edu
Jozef CebulskiUniversity of RzeszowVerified email at ur.edu.pl
Allisson Saiter-FourcinProfesseur des Universités, Université de RouenVerified email at univ-rouen.fr
Yong Gyu ChoiProfessor, Department of Materials Science and Engineering, Korea Aerospace UniversityVerified email at kau.ac.kr
John S. McCloyWashington State UniversityVerified email at wsu.edu
Brian RileyPacific Northwest National LaboratoryVerified email at pnnl.gov
SK SundaramInamori Professor of Materials Science and EngineeringVerified email at alfred.edu
TETYANA IGNATOVAJoint School of Nanoscience and NanoengineeringVerified email at uncg.edu
Halyna Klym / Галина КлимLviv Polytechnic National University / Національний університет "Львівська політехніка"Verified email at lpnu.ua
Delbreilh LaurentUniversity of Rouen Normandie, GPM UMR6634Verified email at univ-rouen.fr
Jonathan BuntonPhD, University of California, Los AngelesVerified email at ucla.edu
Steven AraujoPostdoctoral Scientist, Ecole Nationale Supérieur d'Arts et Métiers, Laboratoire PIMM, Paris, FranceVerified email at ensam.eu
Eric Dargentuniversité de RouenVerified email at univ-rouen.fr
Pavlo Yu. Demchenko / Павло Юрійо...Leading researcher, Ivan Franko National University of Lviv, UkraineVerified email at lnu.edu.ua
Matthias FalkLehigh UniversityVerified email at lehigh.edu

Roman Golovchak

Professor of Physics, Engineering and Astronomy, Austin Peay State University

Verified email at apsu.edu

Materials Science chalcogenide glass structural relaxation positron annihilation X-ray photoelectron spectroscopy


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Computer program PARAV for calculating optical constants of thin films and bulk materials: Case study of amorphous semiconductors A Ganjoo, R Golovchak Journal of Optoelectronics and Advanced Materials 10 (6), 1328, 2008	138	2008
Structure of Se-rich As-Se glasses by high-resolution x-ray photoelectron spectroscopy R Golovchak, A Kovalskiy, AC Miller, H Jain, O Shpotyuk Physical Review B—Condensed Matter and Materials Physics 76 (12), 125208, 2007	98	2007
Experimental verification of the reversibility window concept in binary As-Se glasses subjected to a long-term physical aging R Golovchak, H Jain, O Shpotyuk, A Kozdras, A Saiter, JM Saiter Physical Review B—Condensed Matter and Materials Physics 78 (1), 014202, 2008	86	2008
Step-wise kinetics of natural physical ageing in arsenic selenide glasses R Golovchak, A Kozdras, V Balitska, O Shpotyuk Journal of Physics: Condensed Matter 24 (50), 505106, 2012	83	2012
Atomistic model of physical ageing in Se-rich As–Se glasses R Golovchak, O Shpotyuk, A Kozdras, B Bureau, M Vlček, A Ganjoo, ... Philosophical Magazine 87 (28), 4323-4334, 2007	70	2007
Oxygen incorporation into GST phase-change memory matrix R Golovchak, YG Choi, S Kozyukhin, Y Chigirinsky, A Kovalskiy, ... Applied Surface Science 332, 533-541, 2015	65	2015
Positronics of subnanometer atomistic imperfections in solids as a high-informative structure characterization tool O Shpotyuk, J Filipecki, A Ingram, R Golovchak, M Vakiv, H Klym, ... Nanoscale research letters 10, 1-5, 2015	64	2015
Structural model of homogeneous As–S glasses derived from Raman spectroscopy and high-resolution XPS R Golovchak, O Shpotyuk, JS McCloy, BJ Riley, CF Windisch, ... Philosophical Magazine 90 (34), 4489-4501, 2010	64	2010
Structural paradigm of Se-rich Ge–Se glasses by high-resolution X-ray photoelectron spectroscopy R Golovchak, O Shpotyuk, S Kozyukhin, A Kovalskiy, AC Miller, H Jain Journal of Applied Physics 105 (10), 2009	63	2009
Physical ageing effects in vitreous arsenic selenides RY Golovchak, C Gorecki, A Kozdras, OI Shpotyuk Solid state communications 137 (1-2), 67-69, 2006	56	2006
Gamma-irradiation-induced physical ageing in As–Se glasses RY Golovchak, A Kozdras, C Gorecki, OI Shpotyuk Journal of non-crystalline solids 352 (42-49), 4960-4963, 2006	51	2006
Incorporation of Ga into the structure of Ge–Se glasses R Golovchak, L Calvez, E Petracovschi, B Bureau, D Savytskii, H Jain Materials Chemistry and Physics 138 (2-3), 909-916, 2013	50	2013
Effect of gamma-irradiation on the optical properties of GexAs40− xS60 glasses OI Shpotyuk, AP Kovalskiy, E Skordeva, E Vateva, D Arsova, ... Physica B: Condensed Matter 271 (1-4), 242-247, 1999	48	1999
Compositional dependences of average positron lifetime in binary As–S/Se glasses A Ingram, R Golovchak, M Kostrzewa, S Wacke, M Shpotyuk, O Shpotyuk Physica B: Condensed Matter 407 (4), 652-655, 2012	44	2012
Influence of phase separation on the devitrification of 45S5 bioglass R Golovchak, P Thapar, A Ingram, D Savytskii, H Jain Acta Biomaterialia 10 (11), 4878-4886, 2014	42	2014
Long-term physical ageing in As–Se glasses with short chalcogen chains R Golovchak, O Shpotyuk, A Kozdras, M Vlček, B Bureau, A Kovalskiy, ... Journal of Physics: Condensed Matter 20 (24), 245101, 2008	40	2008
Radiation–optical effects in glassy Ge–As (Sb)–S systems OI Shpotyuk, RY Golovchak, TS Kavetsky, AP Kovalskiy, MM Vakiv Nuclear Instruments and Methods in Physics Research Section B: Beam …, 2000	39	2000
Long-term ageing behaviour in Ge–Se glasses R Golovchak, A Kozdras, O Shpotyuk, S Kozyukhin, JM Saiter Journal of materials science 44, 3962-3967, 2009	37	2009
Physical ageing in glassy As–Se induced by above-bandgap photoexposure RY Golovchak, A Kozdras, OI Shpotyuk Solid State Communications 145 (9-10), 423-426, 2008	37	2008
Coordination defects in bismuth-modified arsenic selenide glasses: High-resolution x-ray photoelectron spectroscopy measurements R Golovchak, O Shpotyuk, A Kovalskiy, AC Miller, J Čech, H Jain Physical Review B—Condensed Matter and Materials Physics 77 (17), 172201, 2008	35	2008

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