Oleksandr Tkach
  Investigador Auxiliar  
   
  telefone: 234370235  
  extensão: 22911  
  e-mail: atkach@ua.pt  
  departamento: Engenharia de Materiais e Cerâmica  
  gabinete: 9.2.18  
   
  grupo: 2 - nanoestruturas e cerâmicos ferróicos multifuncionais
 
  linha: 1 - tecnologias da informação e comunicação
 		 
  url directo: https://www.ciceco.ua.pt/oleksandrtkach  
   
Últimas Notícias


Projectos
Group2 Icon Additive Manufacturing for Smart Plastics (AM4SP)
Group5 Icon Group2 Icon Group0 Icon BioMEMs Avançados para Engenharia de Tecidos: Aplicações em Tecidos Duros (BioMEMs)
Group2 Icon Materiais flexíveis piezoelétricos de alto desempenho preparados utilizando grafite porosa organizada para sensores e geração de energia (PIEZOFLEX)
Group3 Icon Group2 Icon Multiferroicos e magnetoeléctricos para spintrónica: barreiras e interfaces (PTDC/CTM/099415/2008)
Group2 Icon Multifunctional all-oxide heterostructures for electronic applications (IF/00602/2013/CP1162/CT0015)


publicações
Quantitative analysis of magnetization reversal in Ni thin films on unpoled and poled (011) [PbMg1/3Nb2/3O3](0.68)-[PbTiO3](0.32) piezoelectric substrates
Tkach, A; Kehlberger, A; Buttner, F; Jakob, G; Eisebitt, S; Klaui, M
2016, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 49, 33,
CICECO Authorship
Resolving the Fundamentals of Magnetotransport in Metals with Ultrafast Terahertz Spectroscopy
Z. Jin, A. Tkach, F. Casper, V. Spetter, H. Grimm, A. Thomas, T. Kampfrath, M. Bonn, M. Kläui, D. Turchinovich,
2016, International Conference on Ultrafast Phenomena (UP) 2016 Optical Society of America Technical Digest ,
CICECO Authorship
Electric field modification of magnetotransport in Ni thin films on (011) PMN-PT piezosubstrates
Tkach, A; Kehlberger, A; Buttner, F; Jakob, G; Eisebitt, S; Klaui, M
2015, APPLIED PHYSICS LETTERS, 106, 6,
CICECO Authorship
Accessing the fundamentals of magnetotransport in metals with terahertz probes
Jin, ZM; Tkach, A; Casper, F; Spetter, V; Grimm, H; Thomas, A; Kampfrath, T; Bonn, M; Klaui, M; Turchinovich, D
2015, NATURE PHYSICS, 11, 9, 761-766.
CICECO Authorship
Drastic modification of graphene oxide properties by incorporation of nickel: a simple inorganic chemistry approach
Okhay, O; Krishna, R; Tkach, A; Klaui, M; Guerra, LM; Ventura, J; Titus, E; Gracio, JJA
2015, JOURNAL OF MATERIALS SCIENCE, 50, 9, 3425-3433.
CICECO Authorship
Defects and charge transport in Mn-doped K0.5Na0.5NbO3 ceramics
Rafiq, MA; Tkach, A; Costa, ME; Vilarinho, PM
2015, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17, 37, 24403-24411.
CICECO Authorship
Magnetoelectric properties of epitaxial Fe3O4 thin films on (011) PMN-PT piezosubstrates
Tkach, A; Yazdi, MB; Foerster, M; Buttner, F; Vafaee, M; Fries, M; Klaui, M
2015, PHYSICAL REVIEW B, 91, 2,
CICECO Authorship
Low-temperature dielectric relaxations in Y-doped strontium titanate ceramics
Tkach, A; Vilarinho, PM; Almeida, A
2015, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 48, 8,
CICECO Authorship
Impedance Analysis and Conduction Mechanisms of Lead Free Potassium Sodium Niobate (KNN) Single Crystals and Polycrystals: A Comparison Study
Rafiq, MA; Costa, ME; Tkach, A; Vilarinho, PM
2015, CRYSTAL GROWTH & DESIGN, 15, 3, 1289-1294.
CICECO Authorship
Electrical and Magnetic Properties of Graphene Films with Ni Nanoparticles
Okhay, O; Guerra, LM; Ventura, J; Tkach, A; Klaui, M; Krishna, R; Titus, E
2015, MATERIALS TODAY-PROCEEDINGS, 2, 1, 383-388.
CICECO Authorship
Magnetic Anisotropy Engineering in Thin Film Ni Nanostructures by Magnetoelastic Coupling
Finizio, S; Foerster, M; Buzzi, M; Kruger, B; Jourdan, M; Vaz, CAF; Hockel, J; Miyawaki, T; Tkach, A; Valencia, S; Kronast, F; Carman, GP; Nolting, F; Klaui, M
2014, PHYSICAL REVIEW APPLIED, 1, 2,
Probing Giant Magnetoresistance with THz Spectroscopy
Jin, ZM; Tkach, A; Casper, F; Spetter, V; Grimm, H; Klaui, M; Bonn, M; Turchinovich, D
2014, 2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO),
Tackling Polar Response in Oxygen Deficient KTaO3 Thin Films
Mota, DA; Romaguera-Barcelay, Y; Tkach, A; de la Cruz, JP; Vilarinho, PM; Tavares, PB; Moreira, JA; Almeida, A
2014, FERROELECTRICS, 465, 1, 44-53.
CICECO Authorship
ELECTRICAL-FIELD CONTROL OF MAGNETISM MEDIATED BY STRAIN IN Ni NANOSTRUCTURES FABRICATED ON PRE-POLED PMN-PT (011)
Finizio, S; Foerster, M; Vaz, CAF; Mix, C; Mawass, MA; Tkach, A; Klaui, M; Buzzi, M; Nolting, F; Miyawaki, T; Hockel, J; Carman, GP; Valencia, S; Kronast, F
2013, SPIN, 3, 3,
Comment on "The Origin of Magnetism in Mn-Doped SrTiO3"
Tkach, A; Vilarinho, PM; Kleemann, W; Shvartsman, VV; Borisov, P; Bedanta, S
2013, ADVANCED FUNCTIONAL MATERIALS, 23, 18, 2229-2230.
CICECO Authorship
Nonstoichiometry Role on the Properties of Quantum-Paraelectric Ceramics
Tkach, A; Vilarinho, PM
In Tanasescu, S. (Eds.), Structure Processing Properties Relationships in Stoichiometric and Nonstoichiometric Oxides
2020, London: IntechOpen.
CICECO Authorship
Strain effect on the properties of polar dielectric thin films
Tkach, A; Okhay, O; Santos, A; Zlotnik, S; Serrazina, R; Vilarinho, PM; Costa, ME
In Alexander Pogrebnjak and Valentin Novosad (Eds.), Advances in Thin Films, Nanostructured Materials, and Coatings
2019, 331-342. Springer Nature Singapore Pte Ltd.
CICECO Authorship
Sr/Ti ratio in strontium titanate ceramics: designing the microstructure, envisaging the properties
Amaral, L; Tkach, A; Vilarinho, PM; Senos, AMR
In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
2019, 71-100. New York: Nova Science Publishers, Inc.
CICECO Authorship
Effect of bismuth doping on the properties of strontium titanate thin films
Okhay, O; Tkach, A; Vilarinho, PM
In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
2019, 209-258. New York: Nova Science Publishers, Inc.
CICECO Authorship
Enhancement of thermoelectric performance in SrTiO3-based ceramics by processing conditions
Tkach, A; Resende, J; Diaz-Chao, P; Guilmeau, E; Costa, ME; Vilarinho, PM
In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
2019, 297-322. New York: Nova Science Publishers, Inc.
CICECO Authorship
Functional Tantalum-based Oxides: From the Structure to the Applications
S. Zlotnik, A. Tkach, P. M. Vilarinho
In Ashutosh Tiwari, Rosario A. Gerhardt andMagdalena Szutkowska (Eds.), Advanced Ceramic Materials
2016, 337-283. John Wiley & Sons, Inc.
CICECO Authorship

 
Apoio

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