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

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.

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.

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.

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.

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.

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.

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.

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