Zobrazeno 1 - 10
of 9 722
pro vyhledávání: '"MONACO G."'
Autor:
Magnaterra, M., Sandberg, A., Schilling, H., Warzanowski, P., Pätzold, L., Bergamasco, E., Sahle, Ch. J., Detlefs, B., Ruotsalainen, K., Sala, M. Moretti, Monaco, G., Becker, P., Faure, Q., Thakur, G. S., Songvilay, M., Felser, C., van Loosdrecht, P. H. M., Brink, J. van den, Hermanns, M., Grüninger, M.
The insulating mixed-valent Ir$^{+3.66}$ compound Ba$_4$NbIr$_3$O$_{12}$ hosts two holes per Ir$_3$O$_{12}$ trimer unit. We address the electronic structure via resonant inelastic x-ray scattering (RIXS) at the Ir $L_3$ edge and exact diagonalization
Externí odkaz:
http://arxiv.org/abs/2411.00125
Autor:
Warzanowski, P., Magnaterra, M., Sahle, Ch. J., Sala, M. Moretti, Becker, P., Bohatý, L., Císařová, I., Monaco, G., Lorenz, T., van Loosdrecht, P. H. M., Brink, J. van den, Grüninger, M.
Mott insulators with spin-orbit entangled j=1/2 moments host intriguing magnetic properties. The j=1/2 wave function requires cubic symmetry, while a noncubic crystal field mixes j=1/2 and 3/2 character. Spectroscopic studies of $5d^5$ iridates typic
Externí odkaz:
http://arxiv.org/abs/2407.12133
Autor:
Warzanowski, P., Magnaterra, M., Schlicht, G., Faure, Q., Sahle, Ch. J., Becker, P., Bohatý, L., Sala, M. Moretti, Monaco, G., Hermanns, M., van Loosdrecht, P. H. M., Grüninger, M.
Publikováno v:
Phys. Rev. B 109, 155149 (2024)
The half-filled $t_{2g}$ shell of the $t_{2g}^3$ configuration usually, in LS coupling, hosts a S = 3/2 ground state with quenched orbital moment. This state is not Jahn-Teller active. Sufficiently large spin-orbit coupling $\zeta$ has been predicted
Externí odkaz:
http://arxiv.org/abs/2311.11419
Publikováno v:
Physical Review Letters 88, 255503 (2002)
The high frequency collective dynamics of liquid hydrogen fluoride is studied by inelastic x-ray scattering on the coexistence curve at T = 239 K. The comparison with existing molecular dynamics simulations shows the existence of two active relaxatio
Externí odkaz:
http://arxiv.org/abs/2308.13419
Autor:
Warzanowski, P., Magnaterra, M., Stein, P., Schlicht, G., Faure, Q., Sahle, Ch. J., Lorenz, T., Becker, P., Bohaty, L., Sala, M. Moretti, Monaco, G., van Loosdrecht, P. H. M., Grüninger, M.
Publikováno v:
Phys. Rev. B 108, 125120 (2023)
We demonstrate that the cubic antifluorite-type halides K$_2$OsCl$_6$, K$_2$OsBr$_6$, and Rb$_2$OsBr$_6$ are excellent realizations of non-magnetic J=0 compounds. The magnetic susceptibility shows the corresponding Van-Vleck type behavior and no sign
Externí odkaz:
http://arxiv.org/abs/2306.12538
Autor:
Magnaterra, M., Hopfer, K., Sahle, Ch. J., Sala, M. Moretti, Monaco, G., Attig, J., Hickey, C., Pietsch, I. -M., Breitner, F., Gegenwart, P., Upton, M. H., Kim, Jungho, Trebst, S., van Loosdrecht, P. H. M., Brink, J. van den, Grüninger, M.
Spin-orbit coupling locks spin direction and spatial orientation and generates, in semi-classical magnets, a local spin easy-axis and associated ordering. Quantum spin-1/2's defy this fate: rather than spins becoming locally anisotropic, the spin-spi
Externí odkaz:
http://arxiv.org/abs/2301.08340
Autor:
Foglia, L., Mincigrucci, R., Maznev, A. A., Baldi, G., Capotondi, F., Caporaletti, F., Comin, R., De Angelis, D., Duncan, R. A., Fainozzi, D., Kurdi, G., Li, J., Martinelli, A., Masciovecchio, C., Monaco, G., Milloch, A., Nelson, K. A., Occhialini, C. A., Pancaldi, M., Pedersoli, E., Pelli-Cresi, J. S., Simoncig, A., Travasso, F., Wehinger, B., Zanatta, M., Bencivenga, F.
Collective lattice dynamics determine essential aspects of condensed matter, such as elastic and thermal properties. These exhibit strong dependence on the length-scale, reflecting the marked wavevector dependence of lattice excitations. The extreme
Externí odkaz:
http://arxiv.org/abs/2212.01116
Autor:
Magnaterra, M., Sala, M. Moretti, Monaco, G., Becker, P., Hermanns, M., Warzanowski, P., Lorenz, T., Khomskii, D. I., van Loosdrecht, P. H. M., Brink, J. van den, Grüninger, M.
Publikováno v:
Phys. Rev. Research 5, 013167 (2023)
Motivated by several claims of spin-orbit driven spin-liquid physics in hexagonal Ba$_3$Ti$_{3-x}$Ir$_x$O$_9$ hosting Ir2O9 dimers, we report on resonant inelastic x-ray scattering (RIXS) at the Ir L3 edge for different x. We demonstrate that magneti
Externí odkaz:
http://arxiv.org/abs/2211.13803
Publikováno v:
Il Foro Italiano, 1977 Jan 01. 100, 2321/2322-2327/2328.
Externí odkaz:
https://www.jstor.org/stable/23167740
Autor:
Revelli, A., Sala, M. Moretti, Monaco, G., Magnaterra, M., Attig, J., Peterlini, L., Dey, T., Tsirlin, A. A., Gegenwart, P., Fröhlich, T., Braden, M., Grams, C., Hemberger, J., Becker, P., van Loosdrecht, P. H. M., Khomskii, D. I., Brink, J. van den, Hermanns, M., Grüninger, M.
Publikováno v:
Phys. Rev. B 106, 155107 (2022)
The mixed-valent iridate Ba3InIr2O9 has been discussed as a promising candidate for quantum spin-liquid behavior. The compound exhibits Ir$^{4.5+}$ ions in face-sharing IrO6 octahedra forming Ir2O9 dimers with three t2g holes per dimer. Our results e
Externí odkaz:
http://arxiv.org/abs/2207.04795