Oleksandr Tkach

Additive Manufacturing for Smart Plastics (AM4SP)

ParticipanteIndustry National

BioMEMs Avançados para Engenharia de Tecidos: Aplicações em Tecidos Duros (BioMEMs)

ParticipanteFundação para a Ciência e a Tecnologia

Materiais flexíveis piezoelétricos de alto desempenho preparados utilizando grafite porosa organizada para sensores e geração de energia (PIEZOFLEX)

ParticipanteFundação para a Ciência e a Tecnologia

Multiferroicos e magnetoeléctricos para spintrónica: barreiras e interfaces (PTDC/CTM/099415/2008)

ParticipanteFundação para a Ciência e a Tecnologia

Multifunctional all-oxide heterostructures for electronic applications (IF/00602/2013/CP1162/CT0015)

CoordenadorFundação para a Ciência e a Tecnologia

Broad-band dielectric spectroscopy and ferroelectric soft-mode response in the Ba0.6Sr0.4TiO3 solid solution

Ostapchuk, T; Petzelt, J; Hlinka, J; Bovtun, V; Kuzel, P; Ponomareva, I; Lisenkov, S; Bellaiche, L; Tkach, A; Vilarinho, P
2009, JOURNAL OF PHYSICS-CONDENSED MATTER, 21, 47.

(Sr, Mn) TiO3-a magnetoelectrically coupled multiglass

Kleemann, W; Shvartsman, VV; Bedanta, S; Borisov, P; Tkach, A; Vilarinho, PM
2008, JOURNAL OF PHYSICS-CONDENSED MATTER, 20, 43.

Infrared and THz Soft-Mode Spectroscopy of (Ba,Sr)TiO3 Ceramics

Ostapchuk, T; Petzelt, J; Kuzel, P; Veljko, S; Tkach, A; Vilarinho, P; Ponomareva, I; Bellaiche, L; Smirnova, E; Lemanov, V; Sotnikov, A; Weihnacht, M
2008, FERROELECTRICS, 367, 139-148.

(Sr, Mn)TiO(3): A Magnetoelectric Multiglass

Shvartsman, VV; Bedanta, S; Borisov, P; Kleemann, W; Tkach, A; Vilarinho, PM
2008, PHYSICAL REVIEW LETTERS, 101, 16.

Scandium doped Strontium Titanate Ceramics: Structure, Microstructure, and Dielectric Properties

Tkach, A; Vilarinho, PM
2008, BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO, 47, 4, 238-241.

Structure and Microstructure of Y-doped Strontium Titanate Ceramics

Tkach, A; Vilarinho, PM; Reaney, IM
2008, MICROSCOPY AND MICROANALYSIS, 14, 11-12.

High dielectric constant and tunability of strontium titanate ceramics modified by chromium doping

Tkach, A; Okhay, O; Vilarinho, PM; Kholkin, AL
2008, JOURNAL OF PHYSICS-CONDENSED MATTER, 20, 41.

Field Effect on the Dielectric Properties of Sr1-1.5xYxTiO3 Ceramics

A. Tkach, P.M. Vilarinho, A. Almeida
2008, IMAPS/ACerS 4th International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies 2008 (CICMT 2008) Proceedings , 569-577.

Electron spin resonance investigation of Mn2+ ions and their dynamics in Mn-doped SrTiO3

Laguta, VV; Kondakova, IV; Bykov, IP; Glinchuk, MD; Tkach, A; Vilarinho, PM; Jastrabik, L
2007, PHYSICAL REVIEW B, 76, 5.

Nonlinear dc electric-field dependence of the dielectric permittivity and cluster polarization of Sr1-xMnxTiO3 ceramics

Tkach, A; Vilarinho, PM; Kholkin, AL
2007, JOURNAL OF APPLIED PHYSICS, 101, 8.

Strontium Titanate: Synthesis, Properties and Uses

Tkach, A; Vilarinho, PM
2019, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Metal Oxide Based Thermoelectric Materials

In Vijay Kumar, Irfan Ayoub, Vishal Sharma, Hendrik C. Swart (Eds.), Optical Properties of Metal Oxide Nanostructures
Olena Okhay and Alexander Tkach
2023, 399-430, Singapore , Springer Nature Singapore Pte Ltd..
ISBN: 978-981-99-5639-5

Metal Oxide Based Thermoelectric Materials

In Kumar, V., Ayoub, I., Sharma, V., Swart, H.C. (Eds.), Optical Properties of Metal Oxide Nanostructures
Okhay O.; Tkach A.
2023, Progress in Optical Science and Photonics, 26, 399-430, Springer.
ISBN: 978-981-99-5640-1

Antiferrodistortive phase transition in doped strontium titanate ceramics: the role of the perovskite lattice vacancies

In J. Clabel and V. Rivera (Eds.), Perovskite Ceramics
Alexander Tkach
2022, 77-98, Elsevier.
ISBN: 978-0-323-90586-2

Nonstoichiometry Role on the Properties of Quantum-Paraelectric Ceramics

In Tanasescu, S. (Eds.), Structure Processing Properties Relationships in Stoichiometric and Nonstoichiometric Oxides
Tkach, A; Vilarinho, PM
2020, London, IntechOpen.
ISBN: 978-1-78985-452-7

Strain effect on the properties of polar dielectric thin films

In Alexander Pogrebnjak and Valentin Novosad (Eds.), Advances in Thin Films, Nanostructured Materials, and Coatings
Tkach, A; Okhay, O; Santos, A; Zlotnik, S; Serrazina, R; Vilarinho, PM; Costa, ME
2019, 331-342, Springer Nature Singapore Pte Ltd.
ISBN: 978-981-13-6132-6

Sr/Ti ratio in strontium titanate ceramics: designing the microstructure, envisaging the properties

In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
Amaral, L; Tkach, A; Vilarinho, PM; Senos, AMR
2019, 71-100, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Effect of bismuth doping on the properties of strontium titanate thin films

In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
Okhay, O; Tkach, A; Vilarinho, PM
2019, 209-258, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Enhancement of thermoelectric performance in SrTiO3-based ceramics by processing conditions

In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
Tkach, A; Resende, J; Diaz-Chao, P; Guilmeau, E; Costa, ME; Vilarinho, PM
2019, 297-322, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Functional Tantalum-based Oxides: From the Structure to the Applications

In Ashutosh Tiwari, Rosario A. Gerhardt andMagdalena Szutkowska (Eds.), Advanced Ceramic Materials
S. Zlotnik, A. Tkach, P. M. Vilarinho
2016, 337-283, John Wiley & Sons, Inc.
ISBN: 978-1-119-24244-4

Strontium Titanate: Synthesis, Properties and Uses

Tkach, A; Vilarinho, PM
2019, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Hydrothermal Synthesis of Barium Titanate Nanoparticles: The Effect of the Heating System

F. Sá, M. Silva, M. Ivanov, A. Tkach, P.M. Vilarinho, P. Ferreira
2022, Materials Proceedings, 14, 1-4.
ISBN: 978-1-6654-6831-2