Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Sala, Marco"'
Autor:
Rosa, Francesco, Martinelli, Leonardo, Krieger, Guillaume, Braicovich, Lucio, Brookes, Nicholas B., Merzoni, Giacomo, Sala, Marco Moretti, Yakhou-Harris, Flora, Arpaia, Riccardo, Preziosi, Daniele, Salluzzo, Marco, Fidrysiak, Maciej, Ghiringhelli, Giacomo
We use Resonant Inelastic X-ray Scattering (RIXS) to compare the doping dependence of magnetic excitations of an Infinite-Layer nickelate to those of a prototypical superconducting cuprate. The polarization analysis of RIXS spectra establishes the do
Externí odkaz:
http://arxiv.org/abs/2406.09271
Autor:
Merzoni, Giacomo, Martinelli, Leonardo, Braicovich, Lucio, Brookes, Nicholas B., Lombardi, Floriana, Rosa, Francesco, Arpaia, Riccardo, Sala, Marco Moretti, Ghiringhelli, Giacomo
In strongly correlated systems the complete determination of the dynamical susceptibility $\chi(\textbf{q}, \omega)$ is of special relevance because of the entwinement of the spin and charge components. Although Resonant Inelastic X-Ray Scattering (R
Externí odkaz:
http://arxiv.org/abs/2307.06375
Autor:
Martinelli, Leonardo, Wohlfeld, Krzysztof, Pelliciari, Jonathan, Arpaia, Riccardo, Brookes, Nicholas B., Di Castro, Daniele, Fernandez, Mirian G., Kang, Mingu, Krockenberger, Yoshiharu, Kummer, Kurt, McNally, Daniel E., Paris, Eugenio, Schmitt, Thorsten, Yamamoto, Hideki, Walters, Andrew, Zhou, Ke-Jin, Braicovich, Lucio, Comin, Riccardo, Sala, Marco Moretti, Devereaux, Thomas P., Daghofer, Maria, Ghiringhelli, Giacomo
Publikováno v:
Phys. Rev. Lett. 132, 066004 (2024)
We have investigated the 3d orbital excitations in CaCuO2 (CCO), Nd2CuO4 (NCO), and La2CuO4 (LCO) using high-resolution resonant inelastic x-ray scattering. In LCO they behave as well-localized excitations, similarly to several other cuprates. On the
Externí odkaz:
http://arxiv.org/abs/2304.02115
Autor:
Cai, Xinqiang, Kim, Jungho, Martinelli, Leonardo, Florio, Piero, Corti, Matteo, Qiao, Weiliang, Sun, Yanqiu, Niu, Jiasen, Faure, Quentin, Sahle, Christoph, Qiu, Qingzheng, Xiao, Qian, Zheng, Xiquan, Li, Qizhi, Zou, Changwei, Jiang, Xinyi, Ghiringhelli, Giacomo, Han, Wei, Xie, Yanwu, Lu, Yi, Sala, Marco Moretti, Peng, Yingying
Publikováno v:
Phys. Rev. B 108, 235167 (2023)
Recently, an exciting discovery of orientation-dependent superconductivity was made in two-dimensional electron gas (2DEG) at the interfaces of LaAlO$_3$/KTaO$_3$ (LAO/KTO) or EuO/KTaO$_3$ (EuO/KTO). The superconducting transition temperature can rea
Externí odkaz:
http://arxiv.org/abs/2303.01811
Autor:
Mishra, Neeraj, Vlamidis, Ylea, Martini, Leonardo, Lanza, Arianna, Jouvray, Alex, La Sala, Marco, Gemmi, Mauro, Mišeikis, Vaidotas, Perry, Matthew, Teo, Kenneth B. K., Forti, Stiven, Coletti, Camilla
Copper (Cu) is the electrical conductor of choice in many categories of electrical wiring, with household and building installations being the major market of this metal. This work demonstrates the coating of Cu wires - with diameters relevant for lo
Externí odkaz:
http://arxiv.org/abs/2210.06946
Autor:
Peng, Yingying, Martinelli, Leonardo, Li, Qizhi, Rossi, Matteo, Mitrano, Matteo, Arpaia, Riccardo, Sala, Marco Moretti, Gao, Qiang, Guo, Xuefei, De Luca, Gabriella Maria, Walters, Andrew, Nag, Abhishek, Barbour, Andi, Gu, Genda, Pelliciari, Jonathan, Brookes, Nicholas B., Abbamonte, Peter, Salluzzo, Marco, Zhou, Xingjiang, Zhou, Ke-Jin, Bisogni, Valentina, Braicovich, Lucio, Johnston, Steven, Ghiringhelli, Giacomo
Publikováno v:
Phys. Rev. B 105, 115105 (2022)
While electron-phonon coupling (EPC) is crucial for Cooper pairing in conventional superconductors, its role in high-$T_c$ superconducting cuprates is debated. Using resonant inelastic x-ray scattering at the oxygen $K$-edge, we studied the EPC in Bi
Externí odkaz:
http://arxiv.org/abs/2111.05533
Autor:
Martinelli, Leonardo, Betto, Davide, Kummer, Kurt, Arpaia, Riccardo, Braicovich, Lucio, Di Castro, Daniele, Brookes, Nicholas B., Sala, Marco Moretti, Ghiringhelli, Giacomo
We use resonant inelastic x-ray scattering (RIXS) to investigate the magnetic dynamics of the infinite-layer cuprate CaCuO2. We find that close to the (1/2,0) point the single magnon decays into a broad continuum of excitations accounting for 80% of
Externí odkaz:
http://arxiv.org/abs/2110.06666
Autor:
Jacobsen, Henrik, Feng, Hai L., Princep, Andrew J., Rahn, Marein C., Guo, Yanfeng, Chen, Jie, Matsushita, Yoshitaka, Tsujimoto, Yoshihiro, Nagao, Masahiro, Khalyavin, Dmitry, Manuel, Pascal, Murray, Claire A., Donnerer, Christian, Vale, James G., Sala, Marco Moretti, Yamaura, Kazunari, Boothroyd, Andrew T.
Publikováno v:
Phys. Rev. B 102, 214409 (2020)
We report on the structural, magnetic, and electronic properties of two new double-perovskites synthesized under high pressure; Pb2CaOsO6 and Pb2ZnOsO6. Upon cooling below 80 K, Pb2CaOsO6 simultaneously undergoes a metal--insulator transition and dev
Externí odkaz:
http://arxiv.org/abs/2009.04196
Autor:
Rossi, Matteo, Marabotti, Pietro, Hirata, Yasuyuki, Monaco, Giulio, Krisch, Michael, Ohgushi, Kenya, Wohlfeld, Krzysztof, Brink, Jeroen van den, Sala, Marco Moretti
Publikováno v:
Eur. Phys. J. Plus 135, 676 (2020)
In so-called $j_\mathrm{eff} = 1/2$ systems, including some iridates and ruthenates, the coherent superposition of $t_\mathrm{2g}$ orbitals in the ground state gives rise to hopping processes that strongly depend on the bond geometry. Resonant inelas
Externí odkaz:
http://arxiv.org/abs/2008.12921
Autor:
Fumagalli, Roberto, Nag, Abhishek, Agrestini, Stefano, Garcia-Fernandez, Mirian, Walters, Andrew C., Betto, Davide, Brookes, Nicholas B., Braicovich, Lucio, Zhou, Ke-Jin, Ghiringhelli, Giacomo, Sala, Marco Moretti
Motivated by the recent synthesis of Ba$_2$CuO$_{3+\delta}$ (BCO), a high temperature superconducting cuprate with putative $d_{3z^2-r^2}$ ground state symmetry, we investigated its electronic structure by means of Cu $L_3$ x-ray absorption (XAS) and
Externí odkaz:
http://arxiv.org/abs/2004.11651