Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Robarts, H."'
Autor:
Nag, Abhishek, Peng, Yiran, Li, Jiemin, Agrestini, Stefano, Robarts, H. C., Garcia-Fernandez, Mirian, Walters, A. C., Wang, Qi, Yin, Qiangwei, Lei, Hechang, Yin, Zhiping, Zhou, Ke-Jin
Publikováno v:
Nature Communications 13, 7317 (2022)
Among condensed matter systems, Mott insulators exhibit diverse properties that emerge from electronic correlations. In itinerant metals, correlations are usually weak, but can also be enhanced via geometrical confinement of electrons, that manifest
Externí odkaz:
http://arxiv.org/abs/2211.15292
Autor:
Kumar, Umesh, Nag, Abhishek, Li, Jiemin, Robarts, H. C., Walters, A. C., García-Fernández, Mirian, Saint-Martin, R., Revcolevschi, A., Schlappa, Justine, Schmitt, Thorsten, Johnston, Steve, Zhou, Ke-Jin
Resonant inelastic x-ray scattering (RIXS) is an evolving tool for investigating spin dynamics of strongly correlated materials, which complements inelastic neutron scattering. Both techniques have found that non-spin-conserving (NSC) excitations in
Externí odkaz:
http://arxiv.org/abs/2110.03186
Autor:
Li, Jiemin, Xu, Lei, Garcia-Fernandez, Mirian, Nag, Abhishek, Robarts, H. C., Walters, A. C., Liu, X., Zhou, Jianshi, Wohlfeld, Krzysztof, Brink, Jeroen van den, Ding, Hong, Zhou, Ke-Jin
Publikováno v:
Phys. Rev. Lett. 126, 106401 (2021)
We explore the existence of the collective orbital excitations, orbitons, in the canonical orbital system KCuF$_3$. Using the Cu $L_3$-edge resonant inelastic X-ray scattering we show that the non-dispersive high-energy peaks result from the Cu$^{2+}
Externí odkaz:
http://arxiv.org/abs/2010.12289
Autor:
Robarts, H. C., Garcia-Fernandez, M., Li, J., Nag, A., Walters, A. C., Headings, N. E., Hayden, S. M., Zhou, Ke-Jin
Publikováno v:
Phys. Rev. B 103, 224427 (2021)
Resonant inelastic X-ray scattering (RIXS) is a powerful probe of elementary excitations in solids. It is now widely applied to study magnetic excitations. However, its complex cross-section means that RIXS has been more difficult to interpret than i
Externí odkaz:
http://arxiv.org/abs/2009.12925
Autor:
Nag, Abhishek, Zhu, M., Bejas, Matias, Li, J., Robarts, H. C., Yamase, Hiroyuki, Petsch, A. N., Song, D., Eisaki, H., Walters, A. C., Garcia-Fernandez, M., Greco, Andres, Hayden, S. M., Zhou, Ke-Jin
Publikováno v:
Phys. Rev. Lett. 125, 257002 (2020)
High Tc superconductors show a rich variety of phases associated with their charge degrees of freedom. Valence charges can give rise to charge ordering or acoustic plasmons in these layered cuprate superconductors. While charge ordering has been obse
Externí odkaz:
http://arxiv.org/abs/2007.07313
Autor:
Lee, W. S., Zhou, K. J., Hepting, M., Li, J., Nag, A., Walters, A. C., Garcia-Fernandez, M., Robarts, H., Hashimoto, M., Lu, H., Nosarzewski, B., Song, D., Eisaki, H., Shen, Z. X., Moritz, B., Zaanen, J., Devereaux, T. P.
Publikováno v:
Nature Physics 17, 53-57 (2021)
Copper-oxide high TC superconductors possess a number of exotic orders co-existing with or proximal to superconductivity, whose quantum fluctuations may account for the unusual behaviors of the normal state, even affecting superconductivity. Yet, spe
Externí odkaz:
http://arxiv.org/abs/2007.02464
Autor:
Robarts, H. C., Barthelemy, M., Garcia-Fernandez, M., Li, J., Nag, A., Walters, A. C., Zhou, K. J., Hayden, S. M.
Publikováno v:
Phys. Rev. B 100, 214510 (2019)
We report high-resolution resonant inelastic x-ray scattering (RIXS) measurements of the collective spin fluctuations in three compositions of the superconducting cuprate system La2-xSrxCuO4. We have mapped out the excitations throughout much of the
Externí odkaz:
http://arxiv.org/abs/1908.03086
Akademický článek
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Akademický článek
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Autor:
Nag, Abhishek, Robarts, H. C., Wenzel, F., Li, J., Elnaggar, Hebatalla, Wang, Ru Pan, Walters, A. C., García-Fernández, M., De Groot, F. M.F., Haverkort, M. W., Zhou, Ke Jin, Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis
Publikováno v:
Physical Review Letters, 124(6), 1. American Physical Society
Understanding many-body physics of elementary excitations has advanced our control over material properties. Here, we study spin-flip excitations in NiO using Ni ${L}_{3}$-edge resonant inelastic x-ray scattering (RIXS) and present a strikingly diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::683c35a47990c0c435e5b79e34630e66
https://dspace.library.uu.nl/handle/1874/411225
https://dspace.library.uu.nl/handle/1874/411225