74 citations · 348 across the 9 of their papers we have counts for
9 papers
On the possibility of excitonic magnetism in Ir double perovskites
K. Pajskr, P. Novak, V. Pokorny +3
We combine several numerical and semi-analytical methods to study the double perovskites Sr2YIRO6 and Ba2YIRO6 which were recently proposed to exhibit excitonic magnetism. Sta…
Crystal field and magnetism with Wannier functions: Rare-earth doped aluminum garnets
Eva Mihokova, Pavel Novak, Valentin V. Laguta
Using the recently developed method we calculate the crystal field parameters in yttrium and lutetium aluminum garnets doped with seven trivalent Kramers rare-earth ions. We then i…
Crystal field of rare earth impurities in LaF
P. Novák, J. Kuneš, K. Knížek
The crystal field parameters of 13 trivalent lanthanide ions substituted for La in LaF were calculated using the combination of the band structure and Wannier function calculat…
Crystal field and magnetism of Pr and Nd ions in orthorhombic perovskites
P. Novak, K. Knizek, M. Marysko +2
Fifteen parameters characterizing the crystal field of rare-earth ions in the RMO perovskites (R = Pr, Nd, M = Ga, Co) are calculated by expanding the local Hamiltonian express…
Crystal field with Wannier functions: Application to rare-earth aluminates
P. Novak, K. Knizek, J. Kunes
A method to calculate the crystal field parameters {\it ab initio} is proposed and applied to trivalent rare earth impurities in yttrium aluminate and to Tb ion in TbAlO…
The ground state properties of the mixed-valence cobaltites NdSrCoO, NdCaCoO and PrCaCoO
Z. Jirak, J. Hejtmanek, K. Knizek +5
The electric, magnetic, and thermal properties of three perovskite cobaltites with the same 30% hole doping and ferromagnetic ground state were investigated down to very low temper…
Magnetic circular dichroism in EELS: Towards 10 nm resolution
Peter Schattschneider, Cécile Hébert, Stefano Rubino +3
We describe a new experimental setup for the detection of magnetic circular dichroism with fast electrons (EMCD). As compared to earlier findings the signal is an order of magnitud…
Disproportionation Transition at Critical Interaction Strength: NaCoO
K. -W. Lee, J. Kunes, P. Novak +1
Charge disproportionation (CD) and spin differentiation in NaCoO are studied using the correlated band theory approach. The simultaneous CD and gap opening seen previou…
Ferromagnetic insulating state in manganites:55Mn study
M. M. Savosta, V. I. Kamenev, V. A. Borodin +6
55Mn NMR was used to study the ferromagnetic insulating state in four different manganites. In all cases the coexistence of two types of regions possessing different NMR spectra an…