29 citations · 50 across the 4 of their papers we have counts for
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Quantum Criticality in Dimerized Spin Ladders
Gennady Y. Chitov, Brandon W. Ramakko, Mohamed Azzouz
We analyze a possibility of quantum criticality (gaplessness) in dimerized antiferromagnetic two- and three-leg spin-1/2 ladders. Contrary to earlier studies of these models, we ex…
Interplay between field-induced and frustration-induced quantum criticalities in the frustrated two-leg Heisenberg ladder
Brandon W. Ramakko, Mohamed Azzouz
The antiferromagnetic Heisenberg two-leg ladder in the presence of frustration and an external magnetic field is a system that is characterized by two sorts of quantum criticalitie…
Quantum and classical criticalities in the frustrated two-leg Heisenberg ladder
Mohamed Azzouz, Brandon W. Ramakko
This talk was about the frustration-induced criticality in the antiferromagnetic Heisenberg model on the two-leg ladder with exchange interactions along the chains, rungs, and diag…
Effect of temperature on quantum criticality in the frustrated two-leg Heisenberg ladder
Brandon W. Ramakko, Mohamed Azzouz
The antiferromagnetic Heisenberg model on the two-leg ladder with exchange interactions along the chains, rungs, and diagonals is studied using the Jordan-Wigner transformation and…