Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Betto, Davide"'
Autor:
Sarkar, Subhrangsu, Capu, Roxana, Pashkevich, Yurii G., Knobel, Jonas, Cantarino, Marli R., Nag, Abhishek, Kummer, Kurt, Betto, Davide, Sant, Roberto, Nicholson, Christopher W., Khmaladze, Jarji, Zhou, Ke-jin., Brookes, Nicholas B., Monney, Claude, Bernhard, Christian
Publikováno v:
PNAS Nexus, Volume 3, Issue 4, April 2024, pgae100
Heterostructures from complex oxides allow one to combine various electronic and magnetic orders as to induce new quantum states. A prominent example is the coupling between superconducting and magnetic orders in multilayers from high-Tc cuprates and
Externí odkaz:
http://arxiv.org/abs/2404.19410
Autor:
Asmara, Teguh Citra, Green, Robert J., Suter, Andreas, Wei, Yuan, Zhang, Wenliang, Knez, Daniel, Harris, Grant, Tseng, Yi, Yu, Tianlun, Betto, Davide, Garcia-Fernandez, Mirian, Agrestini, Stefano, Klein, Yannick Maximilian, Kumar, Neeraj, Galdino, Carlos William, Salman, Zaher, Prokscha, Thomas, Medarde, Marisa, Müller, Elisabeth, Soh, Yona, Brookes, Nicholas B., Zhou, Ke-Jin, Radovic, Milan, Schmitt, Thorsten
Publikováno v:
Advanced Materials 36, 2310668 (2024)
Strongly-correlated transition-metal oxides are widely known for their various exotic phenomena. This is exemplified by rare-earth nickelates such as LaNiO$_{3}$, which possess intimate interconnections between their electronic, spin, and lattice deg
Externí odkaz:
http://arxiv.org/abs/2403.00728
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:
Betto, Davide, Fumagalli, Roberto, Martinelli, Leonardo, Rossi, Matteo, Piombo, Riccardo, Yoshimi, Kazuyoshi, Di Castro, Daniele, Di Gennaro, Emiliano, Sambri, Alessia, Bonn, Doug, Sawatzky, George A., Braicovich, Lucio, Brookes, Nicholas B., Lorenzana, Jose, Ghiringhelli, Giacomo
Publikováno v:
Phys. Rev. B 103, 140409 (2021)
Thanks to high resolution and polarization analysis, resonant inelastic x-ray scattering (RIXS) magnetic spectra of La2CuO4, Sr2CuO2Cl2 and CaCuO2 reveal a rich set of properties of the spin 1/2 antiferromagnetic square lattice of cuprates. The leadi
Externí odkaz:
http://arxiv.org/abs/2102.04078
Autor:
Betto, Davide, Bluschke, Martin, Putzky, Daniel, Schierle, Enrico, Amorese, Andrea, Fürsich, Katrin, Blanco-Canosa, Santiago, Christiani, Georg, Logvenov, Gennady, Keimer, Bernhard, Minola, Matteo
We used resonant elastic x-ray scattering at the Cu $L_3$ and Dy $M_5$ edges to investigate charge order in thin films of underdoped DyBa$_2$Cu$_3$O$_{6+x}$ (DyBCO) epitaxially grown on NdGaO$_3$ (110) substrates. The films show an orthorhombic cryst
Externí odkaz:
http://arxiv.org/abs/2009.03574
Autor:
Geondzhian, Andrey, Sambri, Alessia, De Luca, Gabriella M., Di Capua, Roberto, Di Gennaro, Emiliano, Betto, Davide, Rossi, Matteo, Peng, Ying Ying, Fumagalli, Roberto, Brookes, Nicholas B., Braicovich, Lucio, Gilmore, Keith, Ghiringhelli, Giacomo, Salluzzo, Marco
Publikováno v:
Phys. Rev. Lett. 125, 126401 (2020)
Despite its simple structure and low degree of electronic correlation, SrTiO$_3$ (STO) features collective phenomena linked to charge transport and, ultimately, superconductivity, that are not yet fully explained. Thus, a better insight in the nature
Externí odkaz:
http://arxiv.org/abs/2005.02054
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
Autor:
Fumagalli, Roberto, Heverhagen, Jonas, Betto, Davide, Arpaia, Riccardo, Rossi, Matteo, Di Castro, Daniele, Brookes, Nicholas B., Sala, Marco Moretti, Daghofer, Maria, Braicovich, Lucio, Wohlfeld, Krzysztof, Ghiringhelli, Giacomo
Publikováno v:
Phys. Rev. B 101, 205117 (2020)
We investigate the Cu $L_3$ edge resonant inelastic x-ray scattering (RIXS) spectra of a quasi-1D antiferromagnet Ca$_2$CuO$_3$. In addition to the magnetic excitations, which are well-described by the two-spinon continuum, we observe two dispersive
Externí odkaz:
http://arxiv.org/abs/2003.06401
Autor:
Hariki, Atsushi, Wang, Ru-Pan, Sotnikov, Andrii, Tomiyasu, Keisuke, Betto, Davide, Brookes, Nicholas B., Uemura, Yohei, Ghiasi, Mahnaz, de Groot, Frank M. F., Kuneš, Jan
Publikováno v:
Phys. Rev. B 101, 245162 (2020)
We present Co $L_3$-edge resonant inelastic x-ray scattering (RIXS) of bulk LaCoO$_3$ across the thermally-induced spin-state crossover around 100~K. Owing to a high energy resolution of 25~meV, we observe unambiguously the dispersion of the intermed
Externí odkaz:
http://arxiv.org/abs/1912.02564
Autor:
Braicovich, Lucio, Rossi, Matteo, Fumagalli, Roberto, Peng, Yingying, Wang, Yan, Arpaia, Riccardo, Betto, Davide, De Luca, Gabriella M., Di Castro, Daniele, Kummer, Kurt, Sala, Marco Moretti, Pagetti, Mattia, Balestrino, Giuseppe, Brookes, Nicholas B., Salluzzo, Marco, Johnston, Steven, Brink, Jeroen van den, Ghiringhelli, Giacomo
Publikováno v:
Phys. Rev. Research 2, 023231 (2020)
The coupling between lattice vibration quanta and valence electrons can induce charge density modulations and decisively influence the transport properties of materials, e.g. leading to conventional superconductivity. In high critical temperature sup
Externí odkaz:
http://arxiv.org/abs/1906.01270