Quantum spin ice with frustrated transverse exchange: from pi-flux phase to nematic quantum spin liquid

Autor: Benton, Owen, Jaubert, L. D. C., Singh, Rajiv, Oitmaa, Jaan, Shannon, Nic
Rok vydání: 2018
Předmět:
Zdroj: Phys. Rev. Lett. 121, 067201 (2018)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.121.067201
Popis: Quantum spin ice materials, pyrochlore magnets with competing Ising and transverse exchange interactions, have been widely discussed as candidates for a quantum spin-liquid ground state. Here, motivated by quantum chemical calculations for Pr pyrochlores, we present the results of a study for frustrated transverse exchange. Using a combination of variational calculations, exact diagonalisation, numerical linked-cluster and series expansions, we find that the previously-studied U(1) quantum spin liquid, in its pi-flux phase, transforms into a nematic quantum spin liquid at a high-symmetry, SU(2) point.
Comment: 5 pages in main text, 10 pages supplemental material
Databáze: arXiv