Zobrazeno 1 - 10
of 336
pro vyhledávání: '"Timco G"'
Autor:
Garlatti, E., Allodi, G., Bordignon, S., Bordonali, L., Timco, G. A., Winpenny, R. E. P., Lascialfari, A., De Renzi, R., Carretta, S.
Publikováno v:
J. Phys.: Condens. Matter 32, 244003 (2020)
An accurate experimental characterization of finite antiferromagnetic (AF) spin chains is crucial for controlling and manipulating their magnetic properties and quantum states for potential applications in spintronics or quantum computation. In parti
Externí odkaz:
http://arxiv.org/abs/2101.07193
Autor:
Chiesa, A., Guidi, T., Carretta, S., Ansbro, S., Timco, G. A., Vitorica-Yrezabal, I., Garlatti, E., Amoretti, G., Winpenny, R. E. P., Santini, P.
Publikováno v:
Phys. Rev. Lett. 119, 217202 (2017)
The discovery of magnetic bistability in Mn$_{12}$ more than 20 years ago marked the birth of molecular magnetism, an extremely fertile interdisciplinary field and a powerful route to create tailored magnetic nanostructures. However, the difficulty t
Externí odkaz:
http://arxiv.org/abs/2101.06161
Akademický článek
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Autor:
Baker, M. L., Guidi, T., Carretta, S., Ollivier, J., Mutka, H., Güdel, H. U., Timco, G. A., McInnes, E. J. L., Amoretti, G., Winpenny, R. E. P., Santini, P.
Molecular nanomagnets are among the first examples of spin systems of finite size and have been test-beds for addressing a range of elusive but important phenomena in quantum dynamics. In fact, for short-enough timescales the spin wavefunctions evolv
Externí odkaz:
http://arxiv.org/abs/1208.4785
Autor:
Lancaster, T., Moeller, J. S., Blundell, S. J., Pratt, F. L., Baker, P. J., Guidi, T., Timco, G. A., Winpenny, R. E. P.
We have observed an electronic energy level crossing in a molecular nanomagnet (MNM) using muon-spin relaxation. This effect, not observed previously despite several muon studies of MNM systems, provides further evidence that the spin relaxation of t
Externí odkaz:
http://arxiv.org/abs/1104.4027
Autor:
Lancaster, T., Blundell, S. J., Pratt, F. L., Franke, I., Steele, A. J., Baker, P. J., Salman, Z., Baines, C., Watanabe, I., Carretta, S., Timco, G. A., Winpenny, R. E. P.
We address the cause of the unusual muon spin relaxation (muSR) results on molecular nanomagnets (MNMs). Through measurements on protonated and deuterated samples of the MNMs Cr7Mn (S=1) and Cr8 (S=0), we show that the muon spin for $S \neq 0$ MNMs i
Externí odkaz:
http://arxiv.org/abs/0911.1693
Autor:
Bianchi, A., Carretta, S., Santini, P., Amoretti, G., Furukawa, Y., Kiuchi, K., Ajiro, Y., Narumi, Y., Kindo, K., Lago, J., Micotti, E., Arosio, P., Lascialfari, A., Borsa, F., Timco, G., Winpenny, R. E. P.
We study the magnetization and the spin dynamics of the Cr$_7$Ni ring-shaped magnetic cluster. Measurements of the magnetization at high pulsed fields and low temperature are compared to calculations and show that the spin Hamiltonian approach provid
Externí odkaz:
http://arxiv.org/abs/0808.2621
Autor:
Ochsenbein, S. T., Waldmann, O., Sieber, A., Carver, G., Bircher, R., Güdel, H. U., Davies, R. S. G., Timco, G. A., Winpenny, R. E. P., Mutka, H., Fernandez-Alonso, F.
The antiferromagnetic molecular finite chain Cr6 was studied by inelastic neutron scattering. The observed magnetic excitations at 2.6 and 4.3 meV correspond, due to the open boundaries of a finite chain, to standing spin waves. The determined energy
Externí odkaz:
http://arxiv.org/abs/0706.0247
Presented are magnetization measurements on a crystal of Cr7Ni antiferromagnetic rings. Irradiation with microwaves at frequencies between 1 and 10 GHz leads to observation of very narrow resonant photon absorption lines which are mainly broadened by
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504416
Autor:
Carretta, S., Santini, P., Amoretti, G., Affronte, M., Ghirri, A., Sheikin, I., Piligkos, S., Timco, G., Winpenny, R. E. P.
We investigate the role of topology and distortions in the quantum dynamics of magnetic molecules, using a cyclic spin system as reference. We consider three variants of antiferromagnetic molecular ring, i.e. Cr$_8$, Cr$_7$Zn and Cr$_7$Ni, characteri
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412628