Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Jeffrey G. Rau"'
Autor:
Sachith Dissanayake, Zhenzhong Shi, Jeffrey G. Rau, Rabindranath Bag, William Steinhardt, Nicholas P. Butch, Matthias Frontzek, Andrey Podlesnyak, David Graf, Casey Marjerrison, Jue Liu, Michel J. P. Gingras, Sara Haravifard
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-11 (2022)
Abstract Ba3Yb2Zn5O11 is exceptional among breathing pyrochlore compounds for being in the nearly-decoupled limit where inter-tetrahedron interactions are weak, hosting isolated clusters or molecular magnet-like tetrahedra of magnetic ytterbium (Yb3+
Externí odkaz:
https://doaj.org/article/cfa90903588d4f10b3c2299a7f995e96
Autor:
Jeffrey G. Rau, Michel J. P. Gingras
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
The ultimate understanding of glassy phenomena will impact fields ranging from materials science to biophysics. Here, the authors report a heterogeneous mixture of slow relaxing spins and fast fluctuating spins, in analogy to slush as a mixture of ic
Externí odkaz:
https://doaj.org/article/36f39fcfdbc44d8ba8c3e46d9e5386c0
Publikováno v:
Physical Review X, Vol 8, Iss 2, p 021053 (2018)
We explore the physics of highly frustrated magnets in confined geometries, focusing on the Coulomb phase of pyrochlore spin ices. As a specific example, we investigate thin films of nearest-neighbor spin ice, using a combination of analytic large-N
Externí odkaz:
https://doaj.org/article/9c26c175598e46bc9be7b55b94b0710c
Autor:
Ruairidh Sutcliffe, Jeffrey G. Rau
Publikováno v:
Physical Review B. 105
We investigate thermal transport in square ice, a two-dimensional analogue of spin ice, exploring the role played by emergent magnetic monopoles in transporting energy. Using kinetic Monte Carlo simulations based on energy preserving extensions of si
Publikováno v:
Physical Review B
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 effective Hamiltonian for the emergent Majorana fermions to second-order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4337477ab8919ca6c82bb3f6b2ee1c9c
https://hdl.handle.net/21.11116/0000-0008-DCB5-421.11116/0000-0008-DCB7-2
https://hdl.handle.net/21.11116/0000-0008-DCB5-421.11116/0000-0008-DCB7-2
Publikováno v:
Springer Series in Solid-State Sciences ISBN: 9783030708580
This chapter describes the microscopic physics of the rare-earth pyrochlore oxides, focussing on the lattice structure, the strong spin-orbit coupling, the crystal electric field and the large magnetic moment. We explain each of these in turn and how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3140b00fa747fa5dff30e0f2cf6d7a2e
https://doi.org/10.1007/978-3-030-70860-3_1
https://doi.org/10.1007/978-3-030-70860-3_1
Autor:
C. L. Sarkis, Michel J. P. Gingras, D. R. Yahne, S. Säubert, Matthew Powell, Kate Ross, Jonathan Marbey, Jeffrey G. Rau, Liurukara D. Sanjeewa, Jose A. Rodriguez-Rivera, J. W. Kolis, Stephen Hill, Harikrishnan S. Nair
Publikováno v:
Physical Review B. 102
We report inelastic neutron scattering measurements from our newly synthesized single crystals of the structurally metastable antiferromagnetic pyrochlore ${\mathrm{Yb}}_{2}{\mathrm{Ge}}_{2}{\mathrm{O}}_{7}$. We determine the four symmetry-allowed ne
Publikováno v:
Physical Review B. 100
The frustrated rare-earth pyrochlore ${\mathrm{Yb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ is remarkable among magnetic materials: despite a ferromagnetically ordered ground state it exhibits a broad, nearly gapless, continuum of excitations. This bro
Autor:
Paul A. McClarty, Jeffrey G. Rau
Publikováno v:
Physical Review B
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 effect of interactions on one-magnon states can, under many circumstance
Autor:
Ch. Rüegg, Jeffrey G. Rau, Helen Walker, V. Tsurkan, Antonio Cervellino, Tian Shang, Tom Fennell, Oksana Zaharko, Marisa Medarde, K. Guratinder, Jan Peter Embs, Clemens Ritter
Publikováno v:
Physical Review B. 100
We study magnetic behavior of the ${\mathrm{Yb}}^{3+}$ ions on a frustrated pyrochlore lattice in the spinel ${\mathrm{CdYb}}_{2}{\mathrm{Se}}_{4}$. The crystal-electric-field parameters deduced from high-energy inelastic neutron scattering reveal a