52 citations · 189 across the 8 of their papers we have counts for
8 papers
Frustrated spin chain physics near the Majumdar-Ghosh point in szenicsite Cu(MoO)(OH)
Stefan Lebernegg, Oleg Janson, Ioannis Rousochatzakis +3
In this joint experimental and theoretical work magnetic properties of the Cu mineral szenicsite Cu(MoO)(OH) are investigated. This compound features isolated tr…
Frustrated magnetic planes with intricate interaction pathways in the mineral langite Cu(OH)SOHO
Stefan Lebernegg, Alexander A. Tsirlin, Oleg Janson +2
Magnetic and crystallographic properties of the mineral langite Cu(OH)SOHO are reported. Its layered crystal structure features a peculiar spatial arrangemen…
Nearly compensated exchange in the dimer compound callaghanite CuMg(CO)(OH)2HO
Stefan Lebernegg, Alexander A. Tsirlin, Oleg Janson +1
A combined theoretical and experimental study of the natural Cu(2+)-mineral callaghanite is presented. Its crystal structure features well separated Cu(OH) structural dimer…
The spin gap in malachite Cu2(OH)2CO3 and its evolution under pressure
Stefan Lebernegg, Alexander A. Tsirlin, Oleg Janson +1
We report on the microscopic magnetic modeling of the spin-1/2 copper mineral malachite at ambient and elevated pressures. Despite the layered crystal structure of this mineral, th…
Two energy scales of spin dimers in clinoclase Cu3(AsO4)(OH)3
Stefan Lebernegg, Alexander A. Tsirlin, Oleg Janson +1
Magnetic susceptibility and microscopic magnetic model of the mineral clinoclase Cu3(AsO4)(OH)3 are reported. This material can be well described as a combination of two nonequival…
Square-lattice magnetism of diaboleite Pb2Cu(OH)4Cl2
Alexander A. Tsirlin, Oleg Janson, Stefan Lebernegg +1
We report on the quasi-two-dimensional magnetism of the natural mineral diaboleite Pb2Cu(OH)4Cl2 with a tetragonal crystal structure, which is closely related to that of the frustr…
Magnetic model for A2CuP2O7 (A = Na, Li) revisited: 1D versus 2D behavior
S. Lebernegg, A. A. Tsirlin, O. Janson +4
We report magnetization measurements, full-potential band structure calculations, and microscopic modeling for the spin-1/2 Heisenberg magnets A2CuP2O7 (A = Na, Li). Based on a qua…
Magneto-structural correlations in doubly hydroxo-bridged Cu(II)-dimers
Stefan Lebernegg
The magneto-structural correlations of superexchange-coupled doubly hydroxo-bridged Cu(II)-dimers have been investigated. To this end, an analytical approach has been applied to [C…