Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Ross, Kate A."'
Autor:
Zhao, Kan, Deng, Hao, Chen, Hua, Ross, Kate A., Petříček, Vaclav, Günther, Gerrit, Russina, Margarita, Hutanu, Vladimir, Gegenwart, Philipp
Publikováno v:
Science 367, 1218 (2020)
Spin ices are exotic phases of matter characterized by frustrated spins obeying local ice rules, in analogy with the electric dipoles in water ice. In two dimensions, one can similarly define ice rules for in-plane Ising-like spins arranged on a kago
Externí odkaz:
http://arxiv.org/abs/2003.06483
Autor:
Yahne, Danielle R., Sanjeewa, Liurukara D., Sefat, Athena S., Stadelman, Bradley S., Kolis, Joseph W., Calder, Stuart, Ross, Kate A.
Publikováno v:
Phys. Rev. B 102, 104423 (2020)
Spin-1/2 antiferromagnetic triangular lattice models are paradigms of geometrical frustration, revealing very different ground states and quantum effects depending on the nature of anisotropies in the model. Due to strong spin orbit coupling and crys
Externí odkaz:
http://arxiv.org/abs/1907.03016
Autor:
Prior, Katrina, Ross, Kate, Conroy, Chloe, Barrett, Emma, Bock, Sophia Garlick, Boyle, Julia, Snijder, Mieke, Teesson, Maree, Chapman, Cath
Publikováno v:
In Mental Health & Prevention December 2022 28
Autor:
Frandsen, Benjamin A., Ross, Kate A., Krizan, Jason W., Nilsen, Gøran J., Wildes, Andrew R., Cava, Robert J., Birgeneau, Robert J., Billinge, Simon J. L.
Publikováno v:
Phys. Rev. Materials 1, 074412 (2017)
We present time-of-flight neutron total scattering and polarized neutron scattering measurements of the magnetically frustrated compounds NaCaCo$_2$F$_7$ and NaSrCo$_2$F$_7$, which belong to a class of recently discovered pyrochlore compounds based o
Externí odkaz:
http://arxiv.org/abs/1708.05527
Prevention of mental and substance use disorders: Shaping priorities for research and implementation
Autor:
Baker, Simon T.E., Deady, Mark, Birrell, Louise, Ross, Kate, Fitzpatrick, Sally, Newton, Nicola, Cockayne, Nicole, Loughland, Carmel, Christensen, Helen, Teesson, Maree, Chapman, Cath
Publikováno v:
In Mental Health & Prevention December 2021 24
Publikováno v:
Phys. Rev. B 92, 134419 (2015)
Fe3PO4O3 forms a non-centrosymmetric lattice structure (space group R3m) comprising triangular motifs of Fe^{3+} coupled by strong antiferromagnetic interactions (|\Theta_{CW}| > 900 K). Neutron diffraction from polycrystalline samples shows that str
Externí odkaz:
http://arxiv.org/abs/1509.07846
Autor:
Ross, Kate A., Krizan, Jason W., Rodriguez-Rivera, Jose A., Cava, Robert J., Broholm, Collin L.
Publikováno v:
Phys. Rev. B 93, 014433 (2016)
A single crystal of the Co2+ based pyrochlore NaCaCo2F7 was studied by inelastic neutron scattering. This frustrated magnet with quenched exchange disorder remains in a strongly correlated paramagnetic state down to one 60th of the Curie-Weiss temper
Externí odkaz:
http://arxiv.org/abs/1503.04494
Autor:
Pan, LiDong, Laurita, N. J., Ross, Kate A., Kermarrec, Edwin, Gaulin, Bruce D., Armitage, N. P.
An important and continuing theme of modern solid state physics is the realization of exotic excitations in materials (e.g. quasiparticles) that have no analogy (or have not yet been observed) in the actual physical vacuum of free space. Although the
Externí odkaz:
http://arxiv.org/abs/1501.05638
Autor:
Pan, LiDong, Kim, Se Kwon, Ghosh, A., Morris, Christopher M., Ross, Kate A., Kermarrec, Edwin, Gaulin, Bruce D., Koohpayeh, S. M., Tchernyshyov, Oleg, Armitage, N. P.
In condensed matter systems, the formation of long range order (LRO) with broken symmetry is often accompanied by new types of excitations. However, in many magnetic pyrochlore oxides, geometrical frustration suppresses conventional LRO while at the
Externí odkaz:
http://arxiv.org/abs/1406.3576
Publikováno v:
Phys. Rev. Lett. 109, 167201 (2012)
Here we establish the systematic existence of a U(1) degeneracy of all symmetry-allowed Hamiltonians quadratic in the spins on the pyrochlore lattice, at the mean-field level. By extracting the Hamiltonian of Er2Ti2O7 from inelastic neutron scatterin
Externí odkaz:
http://arxiv.org/abs/1204.1320