Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Razinkovas, A."'
In recent years, the negatively charged group-IV--vacancy defects in diamond, labeled as G4V($-$) or G4V centers, have received a great attention in quantum information processing. In this study, we investigate the magneto-optical properties of the G
Externí odkaz:
http://arxiv.org/abs/2408.10407
Autor:
Silkinis, Rokas, Žalandauskas, Vytautas, Thiering, Gergő, Gali, Adam, Van de Walle, Chris G., Alkauskas, Audrius, Razinkovas, Lukas
We apply density functional theory to investigate interactions between electronic and vibrational states in crystal defects with multi-mode dynamical Jahn-Teller (JT) systems. Our focus is on transitions between orbital singlet and degenerate orbital
Externí odkaz:
http://arxiv.org/abs/2406.10647
Autor:
Maciaszek, Marek, Razinkovas, Lukas
Publikováno v:
ACS Appl. Nano Mater. 7, 18979 (2024)
Single photon emitters in hexagonal boron nitride offer a gateway to the future of quantum technologies, yet their identification remains challenging and subject to ongoing debate. We demonstrate through ab initio calculations that the optical proper
Externí odkaz:
http://arxiv.org/abs/2404.09345
The nitrogen-vacancy (NV) center in diamond is a heavily studied defect due to its potential applications to quantum metrology and computation, particularly in ambient conditions. The key mechanism to using the NV in any application lies in the abili
Externí odkaz:
http://arxiv.org/abs/2209.14012
Autor:
Vindolet, Baptiste, Adam, Marie-Pierre, Toraille, Loïc, Chipaux, Mayeul, Hilberer, Antoine, Dupuy, Géraud, Razinkovas, Lukas, Alkauskas, Audrius, Thiering, Gergő, Gali, Adam, De Feudis, Mary, Ngambou, Midrel Wilfried Ngandeu, Achard, Jocelyn, Tallaire, Alexandre, Schmidt, Martin, Becher, Christoph, Roch, Jean-François
We investigate the optical properties of silicon-vacancy (SiV) and germanium-vacancy (GeV) color centers in nanodiamonds under hydrostatic pressure up to 180 GPa. The nanodiamonds were synthetized by Si or Ge-doped plasma assisted chemical vapor depo
Externí odkaz:
http://arxiv.org/abs/2209.09792
Publikováno v:
Phys. Rev. Materials 6, 014005 (2022)
We present a first-principles computational study of the thermodynamics of carbon defects in hexagonal boron nitride (hBN). The defects considered are carbon monomers, dimers, trimers, and larger carbon clusters, as well as complexes of carbon with v
Externí odkaz:
http://arxiv.org/abs/2110.12167
Autor:
Magri, Monia, Bondavalli, Cristina, Bartoli, Marco, Benelli, Sara, Žilius, Mindaugas, Petkuviene, Jolita, Vybernaite-Lubiene, Irma, Vaičiūtė, Diana, Grinienė, Evelina, Zemlys, Petras, Morkūnė, Rasa, Daunys, Darius, Solovjova, Sabina, Bučas, Martynas, Gasiūnaitė, Zita Rasuole, Baziukas-Razinkovas, Artūras, Bodini, Antonio
Publikováno v:
In Science of the Total Environment 15 April 2024 921
Autor:
Razinkovas, Lukas, Maciaszek, Marek, Reinhard, Friedemann, Doherty, Marcus W., Alkauskas, Audrius
We present ab-initio calculations of photoionization thresholds and cross sections of the negatively charged nitrogen-vacancy (NV) center in diamond from the ground $^{3}\!A_2$ and the excited $^{3}\!E$ states. We show that after the ionization from
Externí odkaz:
http://arxiv.org/abs/2104.09144
Vibrational and vibronic structure of isolated point defects: the nitrogen-vacancy center in diamond
Autor:
Razinkovas, Lukas, Doherty, Marcus W., Manson, Neil B., Van de Walle, Chris G., Alkauskas, Audrius
Publikováno v:
Phys. Rev. B 104, 045303 (2021)
We present a theoretical study of vibrational and vibronic properties of a point defect in the dilute limit by means of first-principles density functional theory calculations. As an exemplar we choose the negatively charged nitrogen-vacancy center,
Externí odkaz:
http://arxiv.org/abs/2012.04320
Autor:
Zhang, Xie, Turiansky, Mark E., Razinkovas, Lukas, Maciaszek, Marek, Broqvist, Peter, Yan, Qimin, Lyons, John L., Dreyer, Cyrus E., Wickramaratne, Darshana, Gali, Ádám, Pasquarello, Alfredo, Van de Walle, Chris G.
Publikováno v:
Journal of Applied Physics; 4/21/2024, Vol. 135 Issue 15, p1-9, 9p