Roman Golovchak
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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
1022008
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 76 (12), 125208, 2007
842007
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 78 (1), 014202, 2008
792008
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
642007
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
592012
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), 103704, 2009
532009
Physical ageing effects in vitreous arsenic selenides
RY Golovchak, C Gorecki, A Kozdras, OI Shpotyuk
Solid state communications 137 (1-2), 67-69, 2006
512006
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), 1-5, 2015
492015
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
462006
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
441999
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
422010
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
412013
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
392008
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
352015
Long-term ageing behaviour in Ge–Se glasses
R Golovchak, A Kozdras, O Shpotyuk, S Kozyukhin, JM Saiter
Journal of materials science 44 (15), 3962-3967, 2009
352009
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
352000
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
342012
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 77 (17), 172201, 2008
332008
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
322008
Radiation-induced bond switching in mixed Ge–As sulphide glasses
RY Golovchak, OI Shpotyuk*
Philosophical Magazine 85 (25), 2847-2860, 2005
312005
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