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

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.

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.

Manipulation of dielectric permittivity of sol-gel SrTiO3 films by deposition conditions

Okhay, O; Tkach, A; Wu, A; Vilarinho, PM
2013, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 46, 50.

Induced polarized state in intentionally grown oxygen deficient KTaO3 thin films

Mota, DA; Romaguera-Barcelay, Y; Tkach, A; de la Cruz, JP; Vilarinho, PM; Tavares, PB; Moreira, JA; Almeida, A
2013, JOURNAL OF APPLIED PHYSICS, 114, 3.

Microscopy and the Solid Solubility Limit in K1-xMnxTaO3 Ceramics

Tkach, A; Vilarinho, PM; Almeida, A
2012, MICROSCOPY AND MICROANALYSIS, 18, 89-90.

Low-temperature dielectric response of NaTaO3 ceramics and films

Tkach, A; Almeida, A; Moreira, JA; de la Cruz, JP; Romaguera-Barcelay, Y; Vilarinho, PM
2012, APPLIED PHYSICS LETTERS, 100, 19.

Magnetic Anomaly and Dielectric Tunability of (Sr,Mn)TiO3 Thin Films

Tkach, A; Okhay, O; Wu, AY; Vilarinho, PM; Bedanta, S; Shvartsman, VV; Borisov, P
2012, FERROELECTRICS, 426, 274-281.

Polar behaviour induced by lithium in potassium tantalate ceramics

Tkach, A; Almeida, A; Moreira, JA; Chaves, MR; Espinha, A; Vilarinho, PM
2012, JOURNAL OF PHYSICS-CONDENSED MATTER, 24, 4.

Dielectric relaxation of Sr1-1.5xBixTiO3 sol-gel thin films

Okhay, O; Wu, AY; Vilarinho, PM; Tkach, A
2011, JOURNAL OF APPLIED PHYSICS, 109, 6.

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