Zobrazeno 1 - 10
of 449
pro vyhledávání: '"Bewley, R."'
Autor:
Wehinger, B., Lisandrini, F. T., Kestin, N., Bouillot, P., Ward, S., Biner, D., Bewley, R., Krämer, K. W., Normand, B., Kollath, C., Giamarchi, T., Läuchli, A. M., Rüegg, Ch.
Supersymmetry is an algebraic property of a class of quantum Hamiltonians, a guiding principle used in the development of nuclear theory and a concept that may underpin physics beyond the Standard Model. In condensed matter, any symmetry between boso
Externí odkaz:
http://arxiv.org/abs/2408.12626
Autor:
Gonzalez, M. G., Noculak, V., Sharma, A., Favre, V., Soh, J-R., Magrez, A., Bewley, R., Jeschke, H. O., Reuther, J., Rønnow, H. M., Iqbal, Y., Živković, I.
Publikováno v:
Nat. Commun. 15, 7191 (2024)
Quantum spin liquids (QSLs) have become a key area of research in magnetism due to their remarkable properties, such as long-range entanglement, fractional excitations, pinch-point singularities, and topologically protected phenomena. In recent years
Externí odkaz:
http://arxiv.org/abs/2308.11746
Autor:
Takayama, T., Blankenhorn, M., Bertinshaw, J., Haskel, D., Bogdanov, N. A., Kitagawa, K., Yaresko, A. N., Krajewska, A., Bette, S., McNally, G., Gibbs, A. S., Matsumoto, Y., Sari, D. P., Watanabe, I., Fabbris, G., Bi, W., Larkin, T. I., Rabinovich, K. S., Boris, A. V., Ishii, H., Yamaoka, H., Irifune, T., Bewley, R., Ridley, C. J., Bull, C. L., Dinnebier, R., Keimer, B., Takagi, H.
When spin-orbit-entangled $d$-electrons reside on a honeycomb lattice, rich quantum states are anticipated to emerge, as exemplified by the $d^5$ Kitaev materials. Distinct yet equally intriguing physics may be realized with a $d$-electron count othe
Externí odkaz:
http://arxiv.org/abs/2205.12123
Autor:
Weber, T., Fobes, D. M., Waizner, J., Steffens, P., Tucker, G. S., Böhm, M., Beddrich, L., Franz, C., Gabold, H., Bewley, R., Voneshen, D., Skoulatos, M., Georgii, R., Ehlers, G., Bauer, A., Pfleiderer, C., Böni, P., Janoschek, M., Garst, M.
Publikováno v:
Science 375, 1025 (2022)
The motion of a spin excitation across topologically non-trivial magnetic order exhibits a deflection that is analogous to the effect of the Lorentz force on an electrically charged particle in an orbital magnetic field. We used polarized inelastic n
Externí odkaz:
http://arxiv.org/abs/2203.08159
Autor:
Lane, H., Rodriguez, E. E., Walker, H. C., Niedermayer, Ch., Stuhr, U., Bewley, R. I., Voneshen, D. J., Green, M. A., Rodriguez-Rivera, J. A., Fouquet, P., Cheong, S. -W., Attfield, J. P., Ewings, R. A., Stock, C.
Publikováno v:
Phys. Rev. B 104, 104404 (2021)
CaFe$_{2}$O$_{4}$ is an $S=5/2$ antiferromagnet exhibiting two magnetic orders which shows regions of coexistence at some temperatures. Using a Green's function formalism, we model neutron scattering data of the spin wave excitations in this material
Externí odkaz:
http://arxiv.org/abs/2108.09679
Autor:
Guratinder, K., Schmidt, M., Walker, H. C., Bewley, R., Wörle, M., Cabra, D., Osorio, S. A., Villalba, M., Madsen, A. K., Keller, L., Wildes, A., Puphal, P., Cervellino, A., Rüegg, Ch., Zaharko, O.
The crystal structure and magnetic correlations in triangular antiferromagnet FeGa$_2$S$_4$ are studied by x-ray diffraction, magnetic susceptibility, neutron diffraction and neutron inelastic scattering. We report significant mixing at the cation si
Externí odkaz:
http://arxiv.org/abs/2107.06904
Publikováno v:
Phys. Rev. B 104, 144402 (2021)
The magnetic Hamiltonian of the Heisenberg quantum antiferromagnet SrCuTe$_{2}$O$_{6}$ is studied by inelastic neutron scattering technique on powder and single crystalline samples above and below the magnetic transition temperatures at 8 K and 2 K.
Externí odkaz:
http://arxiv.org/abs/2107.05331
Autor:
Lester, C., Ramos, S., Perry, R. S., Croft, T. P., Laver, M., Bewley, R. I., Guidi, T., Hiess, A., Wildes, A., Forgan, E. M., Hayden, S. M.
Publikováno v:
Nature Communications 12, 5798 (2021)
When the transition temperature of a continuous phase transition is tuned to absolute zero, new ordered phases and physical behaviour emerge in the vicinity of the resulting quantum critical point. Sr3Ru2O7 can be tuned through quantum criticality wi
Externí odkaz:
http://arxiv.org/abs/2106.15854
Autor:
Jenni, K., Kunkemöller, S., Steffens, P., Sidid, Y., Bewley, R., Mao, Z. Q., Maeno, Y., Braden, M.
Publikováno v:
Phys. Rev. B 103, 104511 (2021)
The magnetic excitations in Sr$_2$RuO$_4$ are studied by polarized and unpolarized neutron scattering experiments as a function of temperature. At the scattering vector of the Fermi-surface nesting with a half-integer out-of-plane component, there is
Externí odkaz:
http://arxiv.org/abs/2102.06636
Publikováno v:
Phys. Rev. B 102, 224405 (2020)
Inelastic neutron scattering is used to investigate the temperature dependence of spin correlations in the 3-dimensional XY antiferromagnet Ni(Cl$_{1-x}$Br$_x$)$_2$$\cdot$4SC(NH$_2$)$_2$, $ x = 0.14(1)$, tuned close to the chemical-composition-induce
Externí odkaz:
http://arxiv.org/abs/2008.04037