Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Prando G."'
Autor:
Moroni, M., Prando, G., Aswartham, S., Morozov, I., Bukowski, Z., Büchner, B., Grafe, H. J., Carretta, P.
Publikováno v:
Phys. Rev. B 99, 235147 (2019)
We discuss the results of $^{75}$As Nuclear Quadrupole Resonance (NQR) and muon spin relaxation measurements in AFe$_2$As$_2$ (A= Cs, Rb) iron-based superconductors. We demonstrate that the crossover detected in the nuclear spin-lattice relaxation ra
Externí odkaz:
http://arxiv.org/abs/1903.05029
Autor:
Sanna, S., Carretta, P., Moroni, M., Prando, G., Bonfà, P., Allodi, G., De Renzi, R., Martinelli, A.
We report on an experimental study of the effect of Mn impurities in the optimally doped LaFeAsO$_{0.89}$F$_{0.11}$ compound. The results show that a very tiny amount of Mn, of the order of 0.1\%, is enough to destroy superconductivity and to recover
Externí odkaz:
http://arxiv.org/abs/1812.00443
Publikováno v:
Phys. Rev. B 94, 024412 (2016)
We report on broad-band electron spin resonance measurements performed within the itinerant ferromagnetic phase of $R$CoPO ($R$ = La, Pr, Nd and Sm). We reveal that the $R$ substitution is highly effective in gradually introducing a sizeable easy-pla
Externí odkaz:
http://arxiv.org/abs/1602.08377
Autor:
Prando, G., Dally, R., Schottenhamel, W., Guguchia, Z., Baek, S. -H., Aeschlimann, R., Wolter, A. U. B., Wilson, S. D., Büchner, B., Graf, M. J.
Publikováno v:
Phys. Rev. B 93, 104422 (2016)
We report on the magnetic properties of Eu$_{2}$Ir$_{2}$O$_{7}$ upon the application of hydrostatic pressure $P$ by means of macroscopic and local-probe techniques. In contrast to previously reported resistivity measurements, our dc magnetization dat
Externí odkaz:
http://arxiv.org/abs/1511.03037
This paper compares classical parametric methods with recently developed Bayesian methods for system identification. A Full Bayes solution is considered together with one of the standard approximations based on the Empirical Bayes paradigm. Results r
Externí odkaz:
http://arxiv.org/abs/1507.00543
Autor:
Prando, G., Profeta, G., Continenza, A., Khasanov, R., Pal, A., Awana, V. P. S., Büchner, B., Sanna, S.
Publikováno v:
Phys. Rev. B 92, 144414 (2015)
The direct correspondence between Co band ferromagnetism and structural parameters is investigated in the pnictide oxides $R$CoPO for different rare-earth ions ($R$ = La, Pr, Nd, Sm) by means of muon-spin spectroscopy and {\it ab-initio} calculations
Externí odkaz:
http://arxiv.org/abs/1506.06211
Autor:
Prando, G., Hartmann, Th., Schottenhamel, W., Guguchia, Z., Sanna, S., Ahn, F., Nekrasov, I., Wolter, A. U. B., Wurmehl, S., Khasanov, R., Eremin, I., Büchner, B.
Publikováno v:
Phys. Rev. Lett. 114, 247004 (2015)
The superconducting properties of LaFeAsO$_{1-x}$F$_{x}$ in conditions of optimal electron-doping are investigated upon the application of external pressure up to $\sim 23$ kbar. Measurements of muon-spin spectroscopy and dc magnetometry evidence a c
Externí odkaz:
http://arxiv.org/abs/1502.02713
Publikováno v:
Phys. Rev. B 90, 085111 (2014)
We discuss the magnetic properties of a Sm$_{2}$Mo$_{2}$O$_{7}$ single crystal as investigated by means of different experimental techniques. In the literature, a conventional itinerant ferromagnetic state is reported for the Mo$^{4+}$ sublattice bel
Externí odkaz:
http://arxiv.org/abs/1405.6608
Autor:
Prando, G., Sanna, S., Khasanov, R., Pal, A., Brüning, E. M., Mazzani, M., Awana, V. P. S., Büchner, B., De Renzi, R.
Publikováno v:
Journ. Phys. Chem. Sol. 84, 63 (2015)
We report on a detailed investigation of the itinerant ferromagnets LaCoAsO, PrCoAsO and SmCoAsO performed by means of muon spin spectroscopy upon the application of external hydrostatic pressures $p$ up to $2.4$ GPa. These materials are shown to be
Externí odkaz:
http://arxiv.org/abs/1404.6489
Autor:
Hammerath, F., Bonfá, P., Sanna, S., Prando, G., De Renzi, R., Kobayashi, Y., Sato, M., Carretta, P.
Publikováno v:
Phys. Rev. B 89, 134503 (2014)
A superconducting-to-magnetic transition is reported for LaFe$_{1-x}$Mn$_x$AsO$_{0.89}$F$_{0.11}$ where a per thousand amount of Mn impurities is dispersed. By employing local spectroscopic techniques like muon spin rotation (muSR) and nuclear quadru
Externí odkaz:
http://arxiv.org/abs/1401.7576