J. Rau

activity

20182020

collaborators

9 papers

cond-mat.str-el2020

Magnetoelectric generation of a Majorana-Fermi surface in Kitaev's honeycomb model

Rajas Chari, Roderich Moessner, Jeffrey G. Rau

We study the effects of static magnetic and electric fields on Kitaev's honeycomb model. Using the electric polarization operator appropriate for Kitaev materials, we derive the ef…

cond-mat.str-el2019

Unravelling competing microscopic interactions at a phase boundary: a single crystal study of the metastable antiferromagnetic pyrochlore Yb $_{2}$ Ge $_{2}$ O $_{7}$

C. L. Sarkis, J. G. Rau, L. D. Sanjeewa +10

We report inelastic neutron scattering measurements from our newly synthesized single crystals of the structurally metastable antiferromagnetic pyrochlore Yb $_{2}$ Ge $_{2}$ O $_{7}$ .…

cond-mat.str-el2019

Multi-phase competition in quantum $X Y$ pyrochlore antiferromagnet CdYb $_{2}$ Se $_{4}$ : zero and applied magnetic field study

K. Guratinder, Jeffrey G. Rau, V. Tsurkan +9

We study magnetic behaviour of the Yb $^{3 +}$ ions on a frustrated pyrochlore lattice in the spinel {\CYS}. The crystal-electric field parameters deduced from high-energy inelastic…

cond-mat.str-el2019

Non-Hermitian topology of spontaneous magnon decay

Paul A. McClarty, Jeffrey G. Rau

Spontaneous magnon decay is a generic feature of the magnetic excitations of anisotropic magnets and isotropic magnets with non-collinear order. In this paper, we argue that the ef…

cond-mat.str-el2019

Magnon interactions in the frustrated pyrochlore ferromagnet Yb $_{2}$ Ti $_{2}$ O $_{7}$

Jeffrey G. Rau, Roderich Moessner, Paul A. McClarty

The frustrated rare-earth pyrochlore Yb $_{2}$ Ti $_{2}$ O $_{7}$ is remarkable among magnetic materials: despite a ferromagnetically ordered ground state it exhibits a broad, nearly gapless,…

cond-mat.str-el2018

Behavior of the breathing pyrochlore lattice Ba $_{3}$ Yb $_{2}$ Zn $_{5}$ O $_{11}$ in applied magnetic field

J. G. Rau, L. S. Wu, A. F. May +9

The breathing pyrochlore lattice material Ba $_{3}$ Yb $_{2}$ Zn $_{5}$ O $_{11}$ exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As…

Magnetoelectric generation of a Majorana-Fermi surface in Kitaev's honeycomb model

Unravelling competing microscopic interactions at a phase boundary: a single crystal study of the metastable antiferromagnetic pyrochlore Yb2​Ge2​O7​

Multi-phase competition in quantum XY pyrochlore antiferromagnet CdYb2​Se4​: zero and applied magnetic field study

Non-Hermitian topology of spontaneous magnon decay

Magnon interactions in the frustrated pyrochlore ferromagnet Yb2​Ti2​O7​

Behavior of the breathing pyrochlore lattice Ba3​Yb2​Zn5​O11​ in applied magnetic field

Unravelling competing microscopic interactions at a phase boundary: a single crystal study of the metastable antiferromagnetic pyrochlore Yb $_{2}$ Ge $_{2}$ O $_{7}$

Multi-phase competition in quantum $X Y$ pyrochlore antiferromagnet CdYb $_{2}$ Se $_{4}$ : zero and applied magnetic field study

Magnon interactions in the frustrated pyrochlore ferromagnet Yb $_{2}$ Ti $_{2}$ O $_{7}$

Behavior of the breathing pyrochlore lattice Ba $_{3}$ Yb $_{2}$ Zn $_{5}$ O $_{11}$ in applied magnetic field