236 citations · 1.1k across the 59 of their papers we have counts for
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Phase transition between quantum and classical regimes for the escape rate of dimeric molecular nanomagnets in a staggered magnetic field
Solomon Akaraka Owerre, M. B Paranjape
We study the phase transition of the escape rate of exchange-coupled dimer of single-molecule magnets which are coupled either ferromagnetic ally or antiferromagnetically in a stag…
Quantum-classical phase transition of the escape rate of two-sublattice antiferromagnetic large spins
Solomon Akaraka Owerre, M. B Paranjape
The Hamiltonian of a two-sublattice antiferromagnetic spins, with single (hard-axis) and double ion anisotropies described by $H=J \bold{\hat{S}}_{1}\cdot\bold{\hat{S}}_{2} - 2J_{z…
Coordinate (in)dependence and quantum inteference in quantum spin tunnelling
Solomon Akaraka Owerre, M. B. Paranjape
We show how to calculate the amplitude for quantum spin tunneling with a easy axis. In this case, using the usual spherical polar angles to parametrize spin coherent states, ty…
Spin stiffness calculation in anisotropic XY model with Ring exchange interaction
Solomon Akaraka Owerre
We present the spin wave theory of XY model with anisotropic nearest neighbour (NN) interactions along the directions, next nearest (NNN) neighbour interacti…