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Dresden 2017 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 72: Correlated Electrons: Frustrated Magnets - General 2

TT 72.12: Talk

Thursday, March 23, 2017, 18:00–18:15, HSZ 204

Spin liquid and quantum phase transition without symmetry breaking in a frustrated three-dimensional Ising model — •Kai Phillip Schmidt1, Julia Roechner2, and Leon Balents31FAU Erlangen-Nürnberg, Erlangen, Germany — 2TU Dortmund, Dortmund, Germany — 3Kavli Institute for Theoretical Physics, University of California, Santa Barbara, USA

We show that the highly frustrated transverse-field Ising model on the three-dimensional pyrochlore lattice realizes a first-order phase transition without symmetry breaking between the low-field Coulomb quantum spin liquid and the high-field polarized phase. The quantum phase transition is located quantitively by comparing low- and high-field series expansions. Furthermore, the intriguing properties of the elementary excitations in the polarized phase are investigated. We argue that this model can be achieved experimentally by applying mechanical strain to a classical spin ice material comprised of non-Kramers spins such as Ho2Ti2O7. Taken together with our results, this provides a new experimental platform to study quantum spin liquid physics.

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