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cond-mat.str-el2011★ 3 cited
Zero energy Majorana modes in spin ladders and a possible realization of the Kitaev model
A. A. Nersesyan, A. M. Tsvelik
We show that in double-chain Mott insulators (ladders), disordered alternating ionic potentials may locally destroy coherence of magnetic excitations and lead to the appearance of…
cond-mat.str-el2011★ 5 cited
Quantum phase transitions in a strongly entangled spin-orbital chain: A field-theoretical approach
Alexander Nersesyan, Gia-Wei Chern, Natalia B. Perkins
Motivated by recent experiments on quasi-1D vanadium oxides, we study quantum phase transitions in a one-dimensional spin-orbital model describing a Haldane chain and a classical I…