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

Feiguin, A E.; Tsvelik, Alexei M.; Yin, Weiguo; Bozin, E. S.

doi:10.1103/PhysRevLett.123.237204

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

Journal Article · 14 November 2019 · Physical Review Letters

DOI: https://doi.org/10.1103/PhysRevLett.123.237204 · OSTI ID:1574428

Feiguin, A E. ^[1];

^[2]; Yin, Weiguo ^[2]; Bozin, E. S. ^[2]

Northeastern Univ., Boston, MA (United States). Dept. of Physics
Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Div.

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

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: SC0012704

OSTI ID:: 1574428

Report Number(s):: BNL--212346-2019-JAAM

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 123; ISSN 0031-9007; ISSN PRLTAO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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