Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Donnerer, C"'
Autor:
Donnerer, C., Rahn, M. C., Schierle, E., Perry, R. S., Veiga, L. S. I., Nisbet, G., Collins, S. P., Prabhakaran, D., Boothroyd, A. T., McMorrow, D. F.
Publikováno v:
J. Phys.: Condens. Matter 31 (2019) 344001
We study the magnetic structure of the "stuffed" (Tb-rich) pyrochlore iridate Tb$_{2+x}$Ir$_{2-x}$O$_{7-y}$, using resonant elastic x-ray scattering (REXS). In order to disentangle contributions from Tb and Ir magnetic sublattices, experiments were p
Externí odkaz:
http://arxiv.org/abs/1910.05551
Autor:
Vale, J. G., Calder, S., Bogdanov, N. A., Donnerer, C., Sala, M. Moretti, Davies, N. R., Yamaura, J., Hiroi, Z., Mandrus, D., Brink, J. van den, Christianson, A. D., McMorrow, D. F.
Publikováno v:
Phys. Rev. B 101, 014441 (2020)
High-resolution resonant inelastic x-ray scattering (RIXS) measurements ($\Delta$E = 46 meV) have been performed on Cd$_2$Os$_2$O$_7$ through the metal-to-insulator transition (MIT). A magnetic excitation at 125 meV evolves continuously through the M
Externí odkaz:
http://arxiv.org/abs/1812.08689
Autor:
Soh, J. -R., Donnerer, C., Hughes, K. M., Schierle, E., Weschke, E., Prabhakaran, D., Boothroyd, A. T.
Publikováno v:
Phys. Rev. B 98, 064419 (2018)
Resonant elastic X-ray scattering (REXS) at the Eu $M_5$ edge reveals an antiferromagnetic structure in layered EuCd$_2$Sb$_2$ at temperatures below $T_\textrm{N}$ = 7.4 K with a magnetic propagation vector of $(0,0,1/2)$ and spins in the basal plane
Externí odkaz:
http://arxiv.org/abs/1806.00559
Autor:
Donnerer, C., Sala, M. Moretti, Pascarelli, S., Rosa, A. D., Andreev, S. N., Mazurenko, V. V., Irifune, T., Hunter, E. C., Perry, R. S., McMorrow, D. F.
Publikováno v:
Physical Review B 97, 035106 (2018)
High-pressure x-ray absorption spectroscopy was performed at the Ir $L_3$ and $L_2$ absorption edges of Sr$_3$Ir$_2$O$_7$. The branching ratio of white line intensities continuously decreases with pressure, reflecting a reduction in the angular part
Externí odkaz:
http://arxiv.org/abs/1801.02234
Autor:
Vale, J. G., Calder, S., Donnerer, C., Pincini, D., Shi, Y. G., Tsujimoto, Y., Yamaura, K., Sala, M. Moretti, Brink, J. van den, Christianson, A. D., McMorrow, D. F.
Publikováno v:
Phys. Rev. B 97, 184429 (2018)
NaOsO$_{\text{3}}$ undergoes a metal-insulator transition (MIT) at 410 K, concomitant with the onset of antiferromagnetic order. The excitation spectra have been investigated through the MIT by resonant inelastic x-ray scattering (RIXS) at the Os L$_
Externí odkaz:
http://arxiv.org/abs/1707.05551
Autor:
Calder, S., Vale, J. G., Bogdanov, N., Donnerer, C., Pincini, D., Sala, M. Moretti, Liu, X., Upton, M. H., Casa, D., Shi, Y. G., Tsujimoto, Y., Yamaura, K., Hill, J. P., Brink, J. van den, McMorrow, D. F., Christianson, A. D.
Publikováno v:
Phys. Rev. B 95, 020413 (2017)
NaOsO3 hosts a rare manifestation of a metal-insulator transition driven by magnetic correlations, placing the magnetic exchange interactions in a central role. We use resonant inelastic x-ray scattering to directly probe these magnetic exchange inte
Externí odkaz:
http://arxiv.org/abs/1608.08477
Autor:
Donnerer, C., Rahn, M. C., Sala, M. Moretti, Vale, J. G., Pincini, D., Strempfer, J., Krisch, M., Prabhakaran, D., Boothroyd, A. T., McMorrow, D. F.
Publikováno v:
Phys. Rev. Lett. 117, 037201 (2016)
Using resonant magnetic x-ray scattering we address the unresolved nature of the magnetic groundstate and the low-energy effective Hamiltonian of Sm$_2$Ir$_2$O$_7$, a prototypical pyrochlore iridate with a finite temperature metal-insulator transitio
Externí odkaz:
http://arxiv.org/abs/1604.06401
Autor:
Donnerer, C., Feng, Z., Vale, J. G., Andreev, S. N., Solovyev, I. V., Hunter, E. C., Hanfland, M., Perry, R. S., Rønnow, H. M., McMahon, M. I., Mazurenko, V. V., McMorrow, D. F.
Publikováno v:
Phys. Rev. B 93, 174118 (2016)
We study the structural evolution of Sr$_3$Ir$_2$O$_7$ as a function of pressure using x-ray diffraction. At a pressure of 54 GPa at room temperature, we observe a first-order structural phase transition, associated with a change from tetragonal to m
Externí odkaz:
http://arxiv.org/abs/1508.04320
Autor:
Calder, S., Vale, J. G., Bogdanov, N. A., Liu, X., Donnerer, C., Upton, M. H., Casa, D., Lumsden, M. D., Zhao, Z., Yan, J. -Q., Mandrus, D., Nishimoto, S., Brink, J. van den, Hill, J. P., McMorrow, D. F., Christianson, A. D.
Publikováno v:
Nature Communications 7:11651 (2016)
The rich physics manifested by 5d oxides falls outside the Mott-Hubbard paradigm used to successfully explain the electronic and magnetic properties of 3d oxides. Much consideration has been given to the extent to which strong spin-orbit coupling (SO
Externí odkaz:
http://arxiv.org/abs/1508.01848
Autor:
Vale, J. G., Calder, S., Bogdanov, N. A., Donnerer, C., Moretti, Marco, Davies, N. R., Mandrus, D., van den Brink, J., Christianson, A. D., Mcmorrow, D. F.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3731::9c273dfa6b4e572559029487876c6556
http://hdl.handle.net/11311/1152616
http://hdl.handle.net/11311/1152616