Quantum liquid with strong orbital fluctuations: the case of a pyroxene family

Abstract

We discuss quasi one-dimensional magnetic Mott insulators of the pyroxene family where spin and orbital degrees of freedom remain tightly bound. We analyze their excitation spectrum and outline the conditions under which the orbital degrees of freedom become liberated so that the excitations become dispersive and the spectral weight shifts to energies much smaller than the exchange integral.

arXiv comment5 pages, 5 figures, Supplemental Material, revised version

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Cited by in corpus (5)

• Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System
• Dimerization and spin-decoupling in two-leg Heisenberg ladder with frustrated trimer rungs
• Concurrent probing of electron-lattice dephasing induced by photoexcitation in 1T-TaSeTe using ultrafast electron diffraction
• Orbital-slective behaviour in cubanite CuFe2S3
• Orbital disorder and ordering in NaTiSi2O6: 29Si and 23Na NMR Study