15 citations · 46 across the 6 of their papers we have counts for
6 papers
Effectof biquadratic exchange on the phase diagram of a spin-1 transverse XY modelwith single-ion anisotropy
I. Rabuffo, L. De Cesare, A. Caramico D'Auria +1
The two-time Green function method is employed to explore the effect of the biquadratic exchange interaction on the phase diagram of a -dimensional spin-1 transverse XY model wi…
Quantum tricriticality in transverse Ising-like systems
M. T. Mercaldo, I. Rabuffo, A. Naddeo +2
The quantum tricriticality of d-dimensional transverse Ising-like systems is studied by means of a perturbative renormalization group approach focusing on static susceptibility. Th…
Unified static renormalization-group treatment of finite-temperature crossovers close to a quantum critical point
M. T. Mercaldo, L. De Cesare, I. Rabuffo +1
A nonconventional renormalization-group (RG) treatment close to and below four dimensions is used to explore, in a unified and systematic way, the low-temperature properties of a w…
Field-Induced Quantum Criticality of Systems with Ferromagnetically Coupled Structural Spin Units
I. Rabuffo, M. T. Mercaldo, L. De Cesare +1
The field-induced quantum criticality of compounds with ferromagnetically coupled structural spin units (as dimers and ladders) is explored by applying Wilson's renormalization gro…
Low-Temperature Quantum Critical Behaviour of Systems with Transverse Ising-like Intrinsic Dynamics
A. Caramico D'Auria, L. De Cesare, I. Rabuffo
The low-temperature properties and crossover phenomena of -dimensional transverse Ising-like systems within the influence domain of the quantum critical point are investigated s…
Combinatorial aspects of nanoscale magnetism
W. Florek, G. Kamieniarz, A. Caramico D'Auria +2
A finite spin system invariant under a symmetry group G is a very illustrative example of the finite group action on a set of mappings f:X->Y. In the case of spin systems X is a se…