Zobrazeno 1 - 10
of 403
pro vyhledávání: '"Di Castro D."'
Autor:
Perucchi, A., Di Pietro, P., Lupi, S., Sopracase, R., Tebano, A., Giovannetti, G., Petocchi, F., Capone, M., Di Castro, D.
Publikováno v:
Phys. Rev. B 97, 045114 (2018)
We perform infrared conductivity measurements on a series of CaCuO$_2$/SrTiO$_3$ heterostructures made by the insulating cuprate CaCuO$_2$ (CCO) and the insulating perovkite SrTiO$_3$ (STO). We estimate the carrier density of various heterostructures
Externí odkaz:
http://arxiv.org/abs/1708.00390
Autor:
Joseph, B., Caramazza, S., Capitani, F., Clarté, T., Ripanti, F., Lotti, P., Lausi, A., Di Castro, D., Postorino, P., Dore, P.
Publikováno v:
J. Phys.: Condens. Matter 30 (2018) 494002
We report a study of the structural phase transitions induced by pressure in bulk black phosphorus by using both synchrotron x-ray diffraction for pressures up to 12.2 GPa and Raman spectroscopy up to 18.2 GPa. Very recently black phosphorus attracte
Externí odkaz:
http://arxiv.org/abs/1706.03706
Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors
Autor:
Peng, Y. Y., Dellea, G., Minola, M., Conni, M., Amorese, A., Di Castro, D., De Luca, G. M., Kummer, K., Salluzzo, M., Sun, X., Zhou, X. J., Balestrino, G., Tacon, M. Le, Keimer, B., Braicovich, L., Brookes, N. B., Ghiringhelli, G.
Publikováno v:
Nature Physics, Published on Line: Aug 28, 2017)
In high Tc superconductors the magnetic and electronic properties are determined by the probability that valence electrons virtually jump from site to site in the CuO2 planes, a mechanism opposed by on-site Coulomb repulsion and favored by hopping in
Externí odkaz:
http://arxiv.org/abs/1609.05405
Publikováno v:
Phys. Rev. Lett. 115, 147001 (2015)
At interfaces between complex oxides it is possible to generate electronic systems with unusual electronic properties, which are not present in the isolated oxides. One important example is the appearance of superconductivity at the interface between
Externí odkaz:
http://arxiv.org/abs/1607.02449
Autor:
Di Castro, D., Caramazza, S., Innocenti, D., Balestrino, G., Marini, C., Dore, P., Postorino, P.
Publikováno v:
Appl. Phys. Lett. 103, 191903 (2013)
Raman spectra of CaCuO2/SrTiO3 superlattices show clear spectroscopic marker of two structures formed in CaCuO2 at the interface with SrTiO3. For non-superconducting superlattices, grown in low oxidizing atmosphere, the 425 cm-1 frequency of oxygen v
Externí odkaz:
http://arxiv.org/abs/1308.5616
Autor:
Yang, Nan, Di Castro, D., Aruta, C., Mazzoli, C., Minola, M., Brookes, N., Sala, M. Moretti, Prellier, W., Lebedev, O. I., Tebano, A., Balestrino, G.
Publikováno v:
J. Appl. Phys. 112, 123901 (2012)
(CaCuO2)m/(La0.7Sr0.3MnO3)n superlattices, consisting of the infinite layers cuprate CaCuO2 and the optimally doped manganite La1-xSrxMnO3, were grown by pulsed laser deposition. The transport properties are dominated by the manganite block. X-Ray Ab
Externí odkaz:
http://arxiv.org/abs/1211.2543
Publikováno v:
"Phase Transitions and Self-Organization in Electronic and Molecular Networks", edited by Thorpe, M. F. & Phillips, J. C. (Kluwer Academic Publishers, Boston, 2002) Fundamental Materials Research, chap. 24, pp. 375-388
We report experimental evidence for the phase diagram of doped cuprate superconductors as a function of the micro-strain (e) of the Cu-O bond length, measured by Cu K-edge EXAFS, and hole doping (d). This phase diagram shows a QCP at P(e*,d*) where f
Externí odkaz:
http://arxiv.org/abs/1107.4858
Autor:
Di Castro, D., Salvato, M., Tebano, A., Innocenti, D., Aruta, C., Prellier, W., Lebedev, O. I., Ottaviani, I., Brookes, N. B., Minola, M., Sala, M. Moretti, Mazzoli, C., Medaglia, P. G., Ghiringhelli, G., Cirillo, L. Braicovich M., Balestrino, G.
Publikováno v:
Phys. Rev. B 86, 134524 (2012)
We report the occurrence of superconductivity, with maximum Tc = 40 K, in superlattices (SLs) based on two insulating oxides, namely CaCuO2 and SrTiO3. In these (CaCuO2)n/(SrTiO3)m SLs, the CuO2 planes belong only to CaCuO2 block, which is an antifer
Externí odkaz:
http://arxiv.org/abs/1107.2239
Autor:
Di Castro, D., Khasanov, R., Shengelaya, A., Conder, K., Jang, D. -J., Park, M. -S., Lee, S. -I., Keller, H.
Publikováno v:
J. Phys.: Condens. Matter 21, N. 27, 275701 (2009).
The effect of pressure on the magnetic penetration depth $\lambda$ was tested in the hole-doped superconductor YBa2Cu3O(7-d) and in the electron-doped one Sr0.9La0.1CuO2 by means of magnetization measurements. Whereas a large change of $\lambda$ was
Externí odkaz:
http://arxiv.org/abs/1003.3628
Autor:
Di Castro, D., Meir, R.
Actor-Critic based approaches were among the first to address reinforcement learning in a general setting. Recently, these algorithms have gained renewed interest due to their generality, good convergence properties, and possible biological relevance
Externí odkaz:
http://arxiv.org/abs/0909.2934