Zobrazeno 1 - 10
of 1 051
pro vyhledávání: '"Ghiringhelli G"'
Autor:
Krieger, G., Sahib, H., Rosa, F., Rath, M., Chen, Y., Raji, A., Pinho, P. V. B., Lefevre, C., Ghiringhelli, G., Gloter, A., Viart, N., Salluzzo, M., Preziosi, D.
We report an experimental study of the magnetic properties of infinite-layer Nd1-xSrxNiO2 thin films by x-ray magnetic circular dichroism (XMCD) at Ni L3,2 and Nd M5,4 edges. We show that at low temperatures the out-of-plane component of the Ni1+ spi
Externí odkaz:
http://arxiv.org/abs/2403.16969
Autor:
Agrestini, S., Borgatti, F., Florio, P., Frassineti, J., Mosca, D. Fiore, Faure, Q., Detlefs, B., Sahle, C. J., Francoual, S., Choi, J., Garcia-Fernandez, M., Zhou, K. -J., Mitrovic, V. F., Woodward, P. M., Ghiringhelli, G., Franchini, C., Boscherini, F., Sanna, S., Sala, and M. Moretti
Publikováno v:
Phys. Rev. Lett. 133, 066501 (2024)
A supposedly nonmagnetic 5d$^1$ double perosvkite oxide is investigated by a combination of spectroscopic and theoretical methods, namely resonant inelastic X-ray scattering, X-ray absorption spectroscopy, magnetic circular dichroism, and multiplet l
Externí odkaz:
http://arxiv.org/abs/2401.12035
Autor:
Arpaia, R., Martinelli, L., Sala, M. Moretti, Caprara, S., Nag, A., Brookes, N. B., Camisa, P., Li, Q., Gao, Q., Zhou, X., Garcia-Fernandez, M., Zhou, K. -J., Schierle, E., Bauch, T., Peng, Y. Y., Di Castro, C., Grilli, M., Lombardi, F., Braicovich, L., Ghiringhelli, G.
Publikováno v:
Nat. Commun. 14, 7198 (2023)
The universality of the strange metal phase in many quantum materials is often attributed to the presence of a quantum critical point (QCP), a zero-temperature phase transition ruled by quantum fluctuations. In cuprates, where superconductivity hinde
Externí odkaz:
http://arxiv.org/abs/2208.13918
Autor:
Krieger, G., Martinelli, L., Zeng, S., Chow, L. E., Kummer, K., Arpaia, R., Sala, M. Moretti, Brookes, N. B., Ariando, A., Viart, N., Salluzzo, M., Ghiringhelli, G., Preziosi, D.
Superconductivity in infinite-layer nickelates holds exciting analogies with that of cuprates, with similar structures and $3d$-electron count. Using resonant inelastic x-ray scattering (RIXS) we studied electronic and magnetic excitations and charge
Externí odkaz:
http://arxiv.org/abs/2112.03341
Autor:
Di Capua, R., Verma, M., Radovic, M., Strocov, V. N., Piamonteze, C., Guedes, E. B., Plumb, N., Chen, Yu, D'Antuono, M., De Luca, G. M., Di Gennaro, E., Stornaiuolo, D., Preziosi, D., Jouault, B., Granozio, F. Miletto, Sambri, A., Pentcheva, R., Ghiringhelli, G., Salluzzo, M.
Multi-orbital physics in quasi-two-dimensional electron gases (q2DEGs) triggers unique phenomena not observed in bulk materials, such as unconventional superconductivity and magnetism. Here, we investigate the mechanism of orbital selective switching
Externí odkaz:
http://arxiv.org/abs/2109.06138
Autor:
Wahlberg, E., Arpaia, R., Seibold, G., Rossi, M., Fumagalli, R., Trabaldo, E., Brookes, N. B., Braicovich, L., Caprara, S., Gran, U., Ghiringhelli, G., Bauch, T., Lombardi, F.
Publikováno v:
Science 373, 1506-1510 (2021)
The normal state of optimally doped cuprates is dominated by the "strange metal" phase that shows a linear temperature ($T$) dependence of the resistivity persisting down to the lowest $T$. For underdoped cuprates this behavior is lost below the pseu
Externí odkaz:
http://arxiv.org/abs/2009.08398
Autor:
Pelliciari, J., Karakuzu, S., Song, Q., Arpaia, R., Nag, A., Rossi, M., Li, J., Yu, T., Chen, X., Peng, R., Garcia-Fernandez, M., Walters, A. C., Wang, Q., Zhao, J., Ghiringhelli, G., Feng, D., Maier, T. A., Zhou, K. -J., Johnston, S., Comin, R.
The discovery of enhanced superconductivity (SC) in FeSe films grown on SrTiO3 (FeSe/STO) has revitalized the field of Fe-based superconductors. In the ultrathin limit, the superconducting transition temperature Tc is increased by almost an order of
Externí odkaz:
http://arxiv.org/abs/2008.09618
Autor:
Miao, H., Fumagalli, R., Rossi, M., Lorenzana, J., Seibold, G., Kummer, F. Yakhou-Harris K., Brookes, N. B., Gu, G. D., Braicovich, L., Ghiringhelli, G., Dean, M. P. M.
Publikováno v:
Phys. Rev. X 9, 031042 (2019)
Although charge density waves (CDWs) are omnipresent in cuprate high-temperature superconductors, they occur at significantly different wavevectors, confounding efforts to understand their formation mechanism. Here, we use resonant inelastic x-ray sc
Externí odkaz:
http://arxiv.org/abs/1906.07149
Autor:
Seibold, G., Arpaia, R., Peng, Y. Y., Fumagalli, R., Braicovich, L., Di Castro, C., Grilli, M., Ghiringhelli, G., Caprara, S.
Publikováno v:
Commun Phys 4, 7 (2021)
Besides the mechanism responsible for high critical temperature superconductivity, the grand unresolved issue of the cuprates is the occurrence of a strange metallic state above the so-called pseudogap temperature $T^*$. Even though such state has be
Externí odkaz:
http://arxiv.org/abs/1905.10232
Autor:
Fumagalli, R., Braicovich, L., Minola, M., Peng, Y. Y., Kummer, K., Betto, D., Rossi, M., Lefrançois, E., Morawe, C., Salluzzo, M., Suzuki, H., Yakhou, F., Tacon, M. Le, Keimer, B., Brookes, N. B., Sala, M. Moretti, Ghiringhelli, G.
Publikováno v:
Phys. Rev. B 99, 134517 (2019)
High resolution resonant inelastic x-ray scattering (RIXS) has proven particularly effective in the determination of crystal field and spin excitations in cuprates. Its strength lies in the large Cu $L_{3}$ resonance and in the fact that the scatteri
Externí odkaz:
http://arxiv.org/abs/1902.05471