Dr. Robertas Grigalaitis

Dr. Robertas Grigalaitis

Phone: +370 522 34 539

E-mail: 

LinkedIn: https://www.linkedin.com/in/robertas-grigalaitis-86971128/

Institute of Applied Electrodynamics and Telecommunications (IAET)

Physics, material science

Professor, Director of institute

Broadband dielectric spectroscopy of perovskites, disordered materials, composites.

https://orcid.org/0000-0001-7007-2024

https://www.researchgate.net/profile/Robertas-Grigalaitis

1) J.Banys, R.Grigalaitis, J.Macutkevic, W.Kleemann, “Dynamics of nanoscale polar regions and critical behavior of the uniaxial relaxor”, Phys. Rev. B, 72, p. 024106, (2005).

2) J. Macutkevic, J. Banys, R. Grigalaitis, Vysochanskii, Yu. “Asymmetric phase diagram of mixed CuInP2(SxSe1-x)6 crystals” Physical Review B 78(6), p.064101 (2008).

3) A. Senyshyn, B. Schwarz, T. Lorenz, V.T. Adamiv, Ya.V. Burak, J. Banys, R. Grigalaitis, L. Vasylechko, H. Ehrenberg, H. Fuess, „Low-temperature crystal structure, specific heat, and dielectric properties of lithium tetraborate Li2B4O7“ J. Appl. Phys., v. 108 (9), p. 093524 (2010).

4) R. Grigalaitis, M.M. Vijatović Petrović, J.D. Bobić, A. Dzunuzovic, R. Sobiestianskas, A. Brilingas, B.D. Stojanović, J. Banys, Dielectric and magnetic properties of BaTiO3 –NiFe2O4 multiferroic composites. Ceramics International, Vol. 40(4), p. 6165-6170 (2014).

5) D. Jablonskas, R. Grigalaitis, J. Banys, A. A. Bokov and Z.-G. Ye, Broadband dielectric spectra in PbMg1/3Nb2/3O3 crystals with chemical order modified by La doping. Appl. Phys. Lett. Vol. 107(14), 142905 (2015).

6) M.M. Vijatović Petrović, R. Grigalaitis, N. Ilic, J.D. Bobić, A. Dzunuzovic, J. Banys, B.D. Stojanović, Interdependence between structure and electrical characteristics in Sm-doped barium titanate, J. Alloys Compd. 724 (2017) 959-968. DOI:10.1016/j.jallcom.2017.07.099

7) S. Balčiu̅nas, M. Šimėnas, D. Pavlovaitė, M. Kinka, F.-K. Shieh, K.C.-W. Wu, J. Banys, R. Grigalaitis, Low-Frequency Dipolar Dynamics and Atmospheric Effects in ZIF-90 Metal–Organic Framework, J. Phys. Chem. C. 123 (2019) 631–636. DOI: 10.1021/acs.jpcc.8b10862.

8) J.D. Bobić, G.F. Teixeira, R. Grigalaitis, S. Gyergyek, M.M.V. Petrović, M.Ap. Zaghete, B.D. Stojanovic, PZT–NZF/CF ferrite flexible thick films: Structural, dielectric, ferroelectric, and magnetic characterization, J. Adv. Ceram. 8 (2019) 545–554. DOI: 10.1007/s40145-019-0337-1.

9) M. Simenas, S. Balciunas, J.N. Wilson, S. Svirskas, M. Kinka, A. Garbaras, V. Kalendra, A. Gagor, D. Szewczyk, A. Sieradzki, M. Maczka, V. Samulionis, A. Walsh, R. Grigalaitis, J. Banys, Suppression of phase transitions and glass phase signatures in mixed cation halide perovskites, Nature Communications. 11 (2020) 5103. DOI:10.1038/s41467-020-18938-z.

10) M. Šimėnas, S. Balčiu̅nas, Š. Svirskas, M. Kinka, M. Ptak, V. Kalendra, A. Ga̧gor, D. Szewczyk, A. Sieradzki, R. Grigalaitis, A. Walsh, M. Ma̧czka, J. Banys, Phase Diagram and Cation Dynamics of Mixed MA1–xFAxPbBr3 Hybrid Perovskites, Chem. Mater. 33 (2021) 5926–5934. DOI: 10.1021/acs.chemmater.1c00885.

S-MIP-19-4. “Structural phases and dynamic effects in novel hybrid perovskite materials for future solar cells” (2019-2022).

TAP LLT-17-018. “Nanoarchitectonics of Metal-Organic Frameworks (MOFs): Design, Dielectric Properties, and Organic Catalysis“ (2017-2019).

VP1-3.1-ŠMM-07-K-03-011 “Complex investigations of multifferroic properties in composites and nanoceramics” (2013-2015)

Bilateral Lithuanian-French agreement „Gilibert“ programme “The investigation of coexistence between ferroelectric and relaxor ferroelectric states in ceramics of TTB structure ” (2011-2012)

Supervision of PhD students:

1) Rūta Mackevičiūtė (2014-2017)

2) Džiugas Jablonskas (2015-2018)

Supervision of PostDoc:

Dr. Artyom Plyushch (2020-2022)

Introduction to programming

Digital electronics

15 defended bachelor thesis from 2011

7 defended master thesis from 2011

Participation in the national/international governing bodies, commissions, committees, boards etc.

Vilnius University Senate member (from 2022)

Supervisor of the master studies program committee of Electronics and Telecommunication Technologies (2017-2021)