Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Popinciuc, M."'
Autor:
Yang, T. -Y., Balakrishnan, J., Volmer, F., Avsar, A., Jaiswal, M., Samm, J., Ali, S. R., Pachoud, A., Zeng, M., Popinciuc, M., Güntherodt, G., Beschoten, B., Özyilmaz, B.
Publikováno v:
Phys. Rev. Lett. 107, 047206 (2011)
We report on the first systematic study of spin transport in bilayer graphene (BLG) as a function of mobility, minimum conductivity, charge density and temperature. The spin relaxation time $\tau_s$ scales inversely with the mobility $\mu$ of BLG sam
Externí odkaz:
http://arxiv.org/abs/1012.1156
Autor:
Jozsa, C., Maassen, T., Popinciuc, M., Zomer, P. J., Veligura, A., Jonkman, H. T., van Wees, B. J.
Publikováno v:
Phys. Rev. B 80, 241403(R) (2009)
Spin transport in graphene carries the potential of a long spin diffusion length at room temperature. However, extrinsic relaxation processes limit the current experimental values to 1-2 um. We present Hanle spin precession measurements in gated late
Externí odkaz:
http://arxiv.org/abs/0910.1054
Autor:
Popinciuc, M., Józsa, C., Zomer, P. J., Tombros, N., Veligura, A., Jonkman, H. T., van Wees, B. J.
Spin transport experiments in graphene, a single layer of carbon atoms, indicate spin relaxation times that are significantly shorter than the theoretical predictions. We investigate experimentally whether these short spin relaxation times are due to
Externí odkaz:
http://arxiv.org/abs/0908.1039
Publikováno v:
Phys. Rev. B 79, 081402(R) (2009)
Electrical spin injection from ferromagnetic metals into graphene is hindered by the impedance mismatch between the two materials. This problem can be reduced by the introduction of a thin tunnel barrier at the interface. We present room temperature
Externí odkaz:
http://arxiv.org/abs/0811.2960
Autor:
Tombros, N., Tanabe, S., Veligura, A., Jozsa, C., Popinciuc, M., Jonkman, H. T., van Wees, B. J.
Publikováno v:
Phys. Rev. Lett. 101, 046601 (2008)
Spin relaxation in graphene is investigated in electrical graphene spin valve devices in the non-local geometry. Ferromagnetic electrodes with in-plane magnetizations inject spins parallel to the graphene layer. They are subject to Hanle spin precess
Externí odkaz:
http://arxiv.org/abs/0802.2892
We studied the drift of electron spins under an applied DC electric field in single layer graphene spin valves in a field effect transport geometry at room temperature. In the metallic conduction regime ($n \simeq 3.5 \times 10^{16}$ m$^{-2}$), for D
Externí odkaz:
http://arxiv.org/abs/0802.2628
Autor:
Presura, C., Popinciuc, M., van Loosdrecht, P. H. M., van der Marel, D., Mostovoy, M., Yamauchi, T., Ueda, Y.
Publikováno v:
Physical Review Letters 90, 026402 (2003)
Temperature dependent optical spectra are reported for beta-Na0.33V2O5. The sodium ordering transition at T_Na = 240 K, and in particular the charge ordering transition at T_MI = 136 K strongly influence the optical spectra. The metal-insulator trans
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211653
Autor:
van Loosdrecht, P. H. M., Presura, C. N., Popinciuc, M., van der Marel, D., Maris, G., Palstra, T. T. M., van Bentum, P. J. M., Yamada, H., Yamauchi, T., Ueda, Y.
Publikováno v:
J. of Supercond.:Inc. Novel Magn. 15, 587 (2002).
Polarized Raman and optical spectra for the quasi one-dimensional metallic vanadate beta-Na0.33V2O3 are reported for various temperatures. The spectra are discussed in the light of the sodium and charge ordering transitions occurring in this material
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211253
Publikováno v:
Journal of Applied Physics; 5/1/2007, Vol. 101 Issue 9, p093701, 5p, 6 Graphs
Publikováno v:
Journal of Applied Physics; 11/1/2006, Vol. 100 Issue 9, p093714, 8p, 2 Diagrams, 6 Graphs