102 citations · 123 across the 7 of their papers we have counts for
7 papers
Reconfigurable plasmonic hot spots enabled by composite VO2-gold plasmonic antennas
Rostislav Řepa, Jiří Kabát, Tomáš Šikola +1
We theoretically investigate the formation of electric and magnetic hot spots with reconfigurable plasmonic antennas. We consider three material systems offering different levels o…
Efficient nanoscale imaging of solid-state phase transitions by transmission electron microscopy demonstrated on vanadium dioxide nanoparticles
Michal Horák, Peter Kepič, Jiří Kabát +5
We present annular dark field scanning transmission electron microscopy (ADF-STEM) as an efficient, fast, and non-destructive nanoscale tool for monitoring solid-state phase transi…
Plasmonic lightning-rod effect
Vlastimil Křápek, Rostislav Řepa, Michael Foltýn +2
The plasmonic lightning-rod effect refers to the formation of a strong electric near field of localized surface plasmons at the sharp features of plasmonic antennas. While this eff…
Surface quantum dots with pure, coherent, and blinking-free single photon emission
Xin Cao, Jingzhong Yang, Pengji Li +14
The surface of semiconductor nanostructures has a major impact on their electronic and optical properties. Disorder and defects in the surface layer typically cause degradation of…
Fabrication and micro-Raman spectroscopy of arrays of copper phthalocyanine molecular-magnet microdisks
Jiří Liška, Tomáš Krajňák, Peter Kepič +8
Phthalocyanines as organic semiconductors and molecular magnets provide plenty of industrial or high-tech applications from dyes and pigments up to gas sensors, molecular electroni…
Excitation intensity dependence of photoluminescence spectra of SiGe quantum dots grown on prepatterned Si substrates: Evidence for biexcitonic transition
P. Klenovský, M. Brehm, V. Křápek +7
The pumping intensity (I) dependence of the photoluminescence (PL) spectra of perfectly laterally two-dimensionally ordered SiGe quantum dots on Si(001) substrates was studied. The…
Spin state transition and covalent bonding in LaCoO3
V. Křápek, P. Novák, J. Kuneš +3
We use the dynamical mean-field theory to study a p-d Hubbard Hamiltonian for LaCoO3 derived from ab initio calculations in local density approximation (LDA+DMFT scheme). We addres…