PIRSA:17060035

Lobed phase diagram of single crystalline Yb2Ti2O7 in [111] magnetic field

Broholm, C. (2017). Lobed phase diagram of single crystalline Yb2Ti2O7 in [111] magnetic field. Perimeter Institute. https://pirsa.org/17060035

Broholm, Collin. Lobed phase diagram of single crystalline Yb2Ti2O7 in [111] magnetic field. Perimeter Institute, Jun. 07, 2017, https://pirsa.org/17060035 

          @misc{ pirsa_PIRSA:17060035,
            doi = {10.48660/17060035},
            url = {https://pirsa.org/17060035},
            author = {Broholm, Collin},
            keywords = {Condensed Matter},
            language = {en},
            title = {Lobed phase diagram of single crystalline Yb2Ti2O7 in [111] magnetic field},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {jun},
            note = {PIRSA:17060035 see, \url{https://pirsa.org}}
          }

Collin Broholm National Institute of Standards & Technology

DOI 10.48660/17060035
Collection
Talk Type Conference
Subject

Abstract

High quality single crystals of Yb2Ti2O7 synthesized using a traveling solvent floating zone method enable experiments that explore the anisotropic temperature-field phase diagram of this quantum spin ice candidate. We have examined the H//(111) orientation, which is interesting because a phase transition that breaks three fold rotation symmetry is possible in the presence of a magnetic field. Using specific heat, magnetization, and neutron diffraction we find an apparent enhancement of the critical temperature with applied field that is not accounted for by a classical Monte Carlo simulation of the established spin hamiltonian. I shall discuss possible explanations for the discrepancy, which include quantum fluctuations and long range dipolar interactions.