TY  - JOUR
AU  - Xu, J.
AU  - Benton, Owen
AU  - Anand, V. K.
AU  - Islam, A. T. M. N.
AU  - Guidi, T.
AU  - Ehlers, G.
AU  - Feng, E.
AU  - Su, Y.
AU  - Sakai, A.
AU  - Gegenwart, P.
AU  - Lake, B.
TI  - Anisotropic exchange Hamiltonian, magnetic phase diagram, and domain inversion of Nd2Zr2O7
JO  - Physical review / B
VL  - 99
IS  - 14
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2019-02815
SP  - 144420
PY  - 2019
AB  - We present thermodynamic and neutron-scattering measurements on the quantum spin ice candidate Nd2Zr2O7. The parametrization of the anisotropic exchange Hamiltonian is refined based on high-energy-resolution inelastic neutron-scattering data together with thermodynamic data using linear spin-wave theory and numerical linked-cluster expansion. Magnetic phase diagrams are calculated using classical Monte Carlo simulations with fields along [100], [110], and [111] crystallographic directions which agree qualitatively with the experiment. Large hysteresis and irreversibility for [111] is reproduced and the microscopic mechanism is revealed by mean-field calculations to be the existence of metastable states and domain inversion. Our results shed light on the explanations of the recently observed dynamical kagome ice in Nd2Zr2O7 in [111] fields.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000466385900003
DO  - DOI:10.1103/PhysRevB.99.144420
UR  - https://juser.fz-juelich.de/record/862511
ER  -