3 papers
quant-ph2023
Conventional and inverse magnetocaloric and electrocaloric effects of a mixed spin-(1/2, 1) Heisenberg dimer
Hana Vargová, Jozef Strečka
The mixed spin-(1/2, 1) Heisenberg dimer accounting for two different Landé -factors is exactly examined in presence of external magnetic and electric field by considering excha…
quant-ph2023
Distribution of a bipartite entanglement in a mixed spin-(1/2,1) Heisenberg tetramer
Hana Vargová, Jozef Strečka
The distribution of bipartite entanglement in a mixed spin-(1/2,1) Heisenberg tetramer composed from two spin-1/2 and two spin-1 entities is investigated in detail in presence of a…
cond-mat.stat-mech2021
Unconventional thermal and magnetic-field-driven changes of a bipartite entanglement of a mixed spin-(1/2,) Heisenberg dimer with an uniaxial single-ion anisotropy
Hana Vargová, Jozef Strečka
The concept of negativity is adapted in order to explore the quantum and thermal entanglement of the mixed spin-(1/2,) Heisenberg dimers in presence of an external magnetic fiel…