Tkach, A; Vilarinho, PM (2008) Scandium doped Strontium Titanate Ceramics: Structure, Microstructure, and Dielectric Properties. BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO, 47, 4, 238-241.

Tkach, A; Vilarinho, PM; Reaney, IM (2008) Structure and Microstructure of Y-doped Strontium Titanate Ceramics. MICROSCOPY AND MICROANALYSIS, 14, 11-12.
DOI: 10.1017/S143192760808923X

Tkach, A; Okhay, O; Vilarinho, PM; Kholkin, AL (2008) High dielectric constant and tunability of strontium titanate ceramics modified by chromium doping. JOURNAL OF PHYSICS-CONDENSED MATTER, 20, 41,
DOI: 10.1088/0953-8984/20/41/415224

Laguta, VV; Kondakova, IV; Bykov, IP; Glinchuk, MD; Tkach, A; Vilarinho, PM; Jastrabik, L (2007) Electron spin resonance investigation of Mn2+ ions and their dynamics in Mn-doped SrTiO3. PHYSICAL REVIEW B, 76, 5,
DOI: 10.1103/PhysRevB.76.054104

Tkach, A; Vilarinho, PM; Kholkin, AL (2007) Nonlinear dc electric-field dependence of the dielectric permittivity and cluster polarization of Sr1-xMnxTiO3 ceramics. JOURNAL OF APPLIED PHYSICS, 101, 8,
DOI: 10.1063/1.2717874

Tkach, A; Vilarinho, PM; Kholkin, AL; Reaney, IM; Pokorny, J; Petzelt, J (2007) Mechanisms of the effect of dopants and P(O-2) on the improper ferroelastic phase transition in SrTiO3. CHEMISTRY OF MATERIALS, 19, 26, 6471-6477.
DOI: 10.1021/cm071795c

Trepakov, VA; Savinov, ME; Okhay, O; Tkach, A; Vilarinho, PM; Kholkin, AL; Gregora, I; Jastrabik, L (2007) Dielectric permittivity and Cr3+ impurity ion probe luminescence in SrTiO3 sol-gel ceramics. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 27, 13-15, 3705-3707.
DOI: 10.1016/j.jeurceramsoc.2007.02.022

Tkach, A; Araujo, B; Vilarinho, PM (2006) In Vilarinho, PM (Eds.), The influence of dc bias on the dielectric response of Sr1-xCaxTiO3 ceramics. ADVANCED MATERIALS FORUM III, PTS 1 AND 2, 514-516, 240-244.

Tkach, A; Vilarinho, PM; Kholkin, AL (2006) Dependence of dielectric properties of manganese-doped strontium titanate ceramics on sintering atmosphere. ACTA MATERIALIA, 54, 20, 5385-5391.
DOI: 10.1016/j.actamat.2006.07.007

Tkach, A; Vilarinho, PM; Kholkin, AL; Pashkin, A; Veljko, S; Petzelt, J (2006) Broad-band dielectric spectroscopy analysis of relaxational dynamics in Mn-doped SrTiO3 ceramics. PHYSICAL REVIEW B, 73, 10,
DOI: 10.1103/PhysRevB.73.104113

Tkach, A; Vilarinho, PM; Kholkin, AL (2005) Polar behavior in Mn-doped SrTiO3 ceramics. APPLIED PHYSICS LETTERS, 86, 17,
DOI: 10.1063/1.1920414

Tkach, A; Vilarinho, PM; Kholkin, AL (2005) Structure-microstructure-dielectric tunability relationship in Mn-doped strontium titanate ceramics. ACTA MATERIALIA, 53, 19, 5061-5069.
DOI: 10.1016/j.actamat.2005.07.029

Tkach, A; Vilarinho, PM; Kholkin, AL; Pashkin, A; Samoukhina, P; Pokorny, J; Veljko, S; Petzelt, J (2005) Lattice dynamics and dielectric response of Mg-doped SrTiO3 ceramics in a wide frequency range. JOURNAL OF APPLIED PHYSICS, 97, 4,
DOI: 10.1063/1.1849822

Tkach, A; Vilarinho, PM; Senos, AMR; Kholkin, AL (2005) Effect of nonstoichiometry on the microstructure and dielectric properties of strontium titanate ceramics. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 25, 12, 2769-2772.
DOI: 10.1016/j.jeurceramsoc.2005.03.137

Tkach, A; Vilarinho, PM; Kholkin, A (2004) Structural and dielectric properties of Mn-doped strontium titanate ceramics. FERROELECTRICS, 304, 87-90.
DOI: 10.1080/00150190490454620

Tkach, A; Vilarinho, PM; Kholkin, A (2004) Effect of Mg doping on the structural and dielectric properties of strontium titanate ceramics. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 79, 8, 2013-2020.
DOI: 10.1007/s00339-003-2341-z

Tkach, A; Vilarinho, PM; Kholkin, A; Reaney, IM; Petzelt, J (2004) In Martins, R; Fortunato, E; Ferreira, I; Dias, C (Eds.), Structural and dielectric properties of Mg-doped strontium titanate ceramics: Dependence on the materials, processing. ADVANCED MATERIALS FORUM II, 455-456, 40-44.
ISBN: 0-87849-941-5

Trepakov, VA; Savinov, ME; Kudyk, IB; Pashkin, A; Kapphan, SE; Vilarinho, PM; Tkach, A; Kholkin, AL; Jastrabik, L (2003) Dielectric permittivity and Cr3+ impurity luminescence of Sr0.99M0.01TiO3 and SrTi0.99Mg0.01O3. FERROELECTRICS, 294, 229-238.
DOI: 10.1080/00150190390238946

Trepakov, VA; Kudyk, IB; Kapphan, SE; Savinov, ME; Pashkin, A; Jastrabik, L; Tkach, A; Vilarinho, PM; Kholkin, AL (2003) Critical phonons and R- zero-phonon emission line of Cr3+ in Mg-doped SrTiO3. JOURNAL OF LUMINESCENCE, 102, 536-542.
DOI: 10.1016/S0022-2313(02)00598-7

Tkach, A; Vilarinho, PM; Avdeev, M; Kholkin, AL; Baptista, JL (2002) In Vieira, T (Eds.), Synthesis by sol-gel and characterization of strontium titanate powder. ADVANCED MATERIALS FORUM I, 230-2, 40-43.
ISBN: 0-87849-905-9

S. Zlotnik, A. Tkach, P. M. Vilarinho (2016) 9. Functional Tantalum-based Oxides: From the Structure to the Applications. In Ashutosh Tiwari, Rosario A. Gerhardt andMagdalena Szutkowska (Eds.), Advanced Ceramic Materials. 337-283. John Wiley & Sons, Inc.
ISBN: 978-1-119-24244-4