Alexander Tkach
Alexander Tkach
CICECO - Aveiro Institute of Materials, University of Aveiro
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(Sr, Mn) TiO 3: A Magnetoelectric Multiglass
VV Shvartsman, S Bedanta, P Borisov, W Kleemann, A Tkach, ...
Physical review letters 101 (16), 165704, 2008
Structure–microstructure–dielectric tunability relationship in Mn-doped strontium titanate ceramics
A Tkach, PM Vilarinho, AL Kholkin
Acta materialia 53 (19), 5061-5069, 2005
Polar behavior in Mn-doped ceramics
A Tkach, PM Vilarinho, AL Kholkin
Applied Physics Letters 86 (17), 172902, 2005
Accessing the fundamentals of magnetotransport in metals with terahertz probes
Z Jin, A Tkach, F Casper, V Spetter, H Grimm, A Thomas, T Kampfrath, ...
Nature Physics 11 (9), 761-766, 2015
Broad-band dielectric spectroscopy analysis of relaxational dynamics in Mn-doped SrTiO 3 ceramics
A Tkach, PM Vilarinho, AL Kholkin, A Pashkin, S Veljko, J Petzelt
Physical Review B 73 (10), 104113, 2006
Dependence of dielectric properties of manganese-doped strontium titanate ceramics on sintering atmosphere
A Tkach, PM Vilarinho, AL Kholkin
Acta materialia 54 (20), 5385-5391, 2006
Magnetic anisotropy engineering in thin film Ni nanostructures by magnetoelastic coupling
S Finizio, M Foerster, M Buzzi, B Krüger, M Jourdan, CAF Vaz, J Hockel, ...
Physical Review Applied 1 (2), 021001, 2014
Electron spin resonance investigation of Mn 2+ ions and their dynamics in Mn-doped Sr Ti O 3
VV Laguta, IV Kondakova, IP Bykov, MD Glinchuk, A Tkach, PM Vilarinho, ...
Physical Review B 76 (5), 054104, 2007
Defects and charge transport in Mn-doped K 0.5 Na 0.5 NbO 3 ceramics
MA Rafiq, A Tkach, ME Costa, PM Vilarinho
Physical Chemistry Chemical Physics 17 (37), 24403-24411, 2015
Effect of nonstoichiometry on the microstructure and dielectric properties of strontium titanate ceramics
A Tkach, PM Vilarinho, AMR Senos, AL Kholkin
Journal of the European Ceramic Society 25 (12), 2769-2772, 2005
X-ray absorption fine structure studies of Mn coordination in doped perovskite
I Levin, V Krayzman, JC Woicik, A Tkach, PM Vilarinho
Applied Physics Letters 96 (5), 052904, 2010
Multiglass order and magnetoelectricity in Mn2+ doped incipient ferroelectrics
W Kleemann, S Bedanta, P Borisov, VV Shvartsman, S Miga, J Dec, ...
The European Physical Journal B 71 (3), 407, 2009
Lattice dynamics and dielectric response of Mg-doped ceramics in a wide frequency range
A Tkach, PM Vilarinho, AL Kholkin, A Pashkin, P Samoukhina, J Pokorny, ...
Journal of applied physics 97 (4), 044104, 2005
Effect of Mg doping on the structural and dielectric properties of strontium titanate ceramics
A Tkach, PM Vilarinho, A Kholkin
Applied Physics A 79 (8), 2013-2020, 2004
Broad-band dielectric spectroscopy and ferroelectric soft-mode response in the Ba0. 6Sr0. 4TiO3 solid solution
T Ostapchuk, J Petzelt, J Hlinka, V Bovtun, P Kužel, I Ponomareva, ...
Journal of Physics: Condensed Matter 21 (47), 474215, 2009
Giant dielectric permittivity and high tunability in Y-doped SrTiO3 ceramics tailored by sintering atmosphere
A Tkach, O Okhay, A Almeida, PM Vilarinho
Acta Materialia 130, 249-260, 2017
Impedance analysis and conduction mechanisms of lead free potassium sodium niobate (KNN) single crystals and polycrystals: a comparison study
MA Rafiq, ME Costa, A Tkach, PM Vilarinho
Crystal Growth & Design 15 (3), 1289-1294, 2015
(Sr, Mn) TiO3—a magnetoelectrically coupled multiglass
W Kleemann, VV Shvartsman, S Bedanta, P Borisov, A Tkach, ...
Journal of Physics: Condensed Matter 20 (43), 434216, 2008
Electric field modification of magnetotransport in Ni thin films on (011) PMN-PT piezosubstrates
A Tkach, A Kehlberger, F Büttner, G Jakob, S Eisebitt, M Kläui
Applied Physics Letters 106 (6), 062404, 2015
Role of trivalent Sr substituents and Sr vacancies in tetragonal and polar states of SrTiO3
A Tkach, TM Correia, A Almeida, JA Moreira, MR Chaves, O Okhay, ...
Acta materialia 59 (14), 5388-5397, 2011
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