Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Dediu, V. A."'
We derive the kinetic equations for polaron hopping in organics that explicitly take into account the double occupation possibility and pair intersite correlations. The equations include simplified phenomenological spin dynamics and provide a self-co
Externí odkaz:
http://arxiv.org/abs/1802.07921
Autor:
Prieto-Ruiz, J. P., Miralles, S. G., Prima-García, H., Løpez-Munoz, A., Riminucci, A., Graziosi, P., Cinchetti, M., Dediu, V. A., Coronado, E.
The quest for a spin-polarized organic light emitting diode (spin-OLED) is a common goal in the emerging fields of molecular electronics and spintronics. In this device two ferromagnetic electrodes are used to enhance the electroluminescence intensit
Externí odkaz:
http://arxiv.org/abs/1612.00633
Publikováno v:
New Journal of Physics, 17, (2015) 023019
We derive kinetic equations describing injection and transport of spin polarized carriers in organic semiconductors with hopping conductivity via an impurity level. The model predicts a strongly voltage dependent magnetoresistance, defined as resista
Externí odkaz:
http://arxiv.org/abs/1502.01541
Highly-anisotropic in-plane magneto-resistance (MR) in graphite (HOPG) samples has been recently observed (Y. Kopelevich et al., arXiv:1202.5642) which is negative and linear in low fields in some current direction while it is giant, super-linear and
Externí odkaz:
http://arxiv.org/abs/1208.2866
Autor:
Sidorenko, A. A., Pernechele, C., Lupo, P., Ghidini, M., Solzi, M., De Renzi, R., Bergenti, I., Graziosi, P., Dediu, V., Hueso, L., Hindmarch, A. T.
Publikováno v:
Appl. Phys. Lett. 97, 162509 (2010)
The effect of the AlOx barrier thickness on magnetic and morphological properties of Ta/Co/(AlOx)/Alq3/Si hybrid structures was systematically studied by means of atomic force microscopy, SQUID magnetometry and nuclear magnetic resonance (NMR). All u
Externí odkaz:
http://arxiv.org/abs/1010.3912
The surface spin polarization in the epitaxial films of a prototype manganite, La0.7Sr0.3MnO3, has been investigated by Scanning Tunneling Spectroscopy with ferromagnetic SP tips at room temperature. The manganite surface splits into ferromagnetic (F
Externí odkaz:
http://arxiv.org/abs/0711.3618
The electronic structure of the interface between Tris (8-hydroxyquinolino)-aluminum (Alq3) and La0.7Sr0.3MnO3 manganite (LSMO) was investigated by means of photoelectron spectroscopy. As demonstrated recently this interface is characterized by effic
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702336
Autor:
Riminucci, A., Bergenti, I., Hueso, L. E., Murgia, M., Taliani, C., Zhan, Y., Casoli, F., de Jong, M. P., Dediu, V.
We report detailed investigations of hybrid organic-inorganic vertical spin valves. Spin polarized injection in tris(8-hydroxyquinoline) aluminum (Alq3) organic semiconductor (OS) was performed using La0.7Sr0.3MnO3 manganite as the bottom electrode a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701603
The ferromagnetic phase in La0.7Sr0.3MnO3 manganite is completely spin polarized (100%) at room temperature. This is demonstrated on high quality epitaxial films by Spin-Polarized Scanning Tunneling Microscopy. The films consist of a highly homogeneo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301101
Electroluminescence in organic semiconductors strongly depends on the relative population of excited singlet and triplet excitonic states resulting from recombination of injected carriers. In conventional organic light-emitting diodes (OLED) optical
Externí odkaz:
http://arxiv.org/abs/cond-mat/0104165