Výsledky vyhledávání - "Gabaly, F. El"

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Metal-insulator transition of the reduced surface of yttria-stabilized zirconia near Pt electrodes

Autor: Siegel, D. A., Gabaly, F. El, McCarty, K. F., Bartelt, N. C.

Publikováno v: Phys. Rev. B 92, 125421 (2015)

The electrochemical reactions of solid oxide fuel cells occur in the region where gas-phase species, electrode, and electrolyte coincide. When the electrode is an ionic insulator and the electrolyte is an electronic insulator, this `triple phase boun

Externí odkaz: http://arxiv.org/abs/1406.5682

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A high-efficiency spin-resolved phototemission spectrometer combining time-of-flight spectroscopy with exchange-scattering polarimetry

Autor: Jozwiak, C., Graf, J., Lebedev, G., Andresen, N., Schmid, A. K., Fedorov, A. V., Gabaly, F. El, Wan, W., Lanzara, A., Hussain, Z.

Publikováno v: Rev.Sci.Instrum.81:053904,2010

We describe a spin-resolved electron spectrometer capable of uniquely efficient and high energy resolution measurements. Spin analysis is obtained through polarimetry based on low-energy exchange scattering from a ferromagnetic thin-film target. This

Externí odkaz: http://arxiv.org/abs/1006.2178

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Measuring the magnetization of three monolayer thick Co islands and films by X-ray dichroism

Autor: Mascaraque, A., Aballe, L., Marco, J. F., Mentes, T. O., Gabaly, F. El, Klein, C., Schmid, A. K., McCarty, K. F., Locatelli, A., de la Figuera, J.

Publikováno v: Phys. Rev. B 80, 172401 (2009)

Co islands and films are characterized by x-ray magnetic circular dichroism photoemission electron microscopy (XMCD-PEEM). The spatial resolution capabilties of the technique together with atomic growth control permit obtaining perfectly flat triangu

Externí odkaz: http://arxiv.org/abs/0910.4687

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Self-doping effects in epitaxially grown graphene

Autor: Siegel, D. A., Zhou, S. Y., Gabaly, F. El, Fedorov, A. V., Schmid, A. K., Lanzara, A.

Publikováno v: Applied Physics Letters 93, 243119 (2008)

Self-doping in graphene has been studied by examining single-layer epitaxially grown graphene samples with differing characteristic lateral terrace widths. Low energy electron microscopy was used to gain real-space information about the graphene surf

Externí odkaz: http://arxiv.org/abs/0901.1901

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Origin of the energy bandgap in epitaxial graphene

Autor: Zhou, S. Y., Siegel, D. A., Fedorov, A. V., Gabaly, F. El, Schmid, A. K., Neto, A. H. Castro, Lanzara, A.

Publikováno v: Nature Mat. 7, 259-260 (2008)

We studied the effect of quantum confinement on the size of the band gap in single layer epitaxial graphene. Samples with different graphene terrace sizes are studied by using low energy electron microscopy (LEEM) and angle-resolved photoemission spe

Externí odkaz: http://arxiv.org/abs/0804.1818

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Determining the structure of Ru(0001) from low-energy electron diffraction of a single terrace

Autor: de la Figuera, J., Puerta, J. M., Cerda, J. I., Gabaly, F. El, McCarty, K. F.

Publikováno v: Surface Science Volume 600, Issue 9, 1 May 2006, Pages L105-L109

While a perfect hcp (0001) surface has three-fold symmetry, the diffraction patterns commonly obtained are six-fold symmetric. This apparent change in symmetry occurs because on a stepped surface, the atomic layers on adjacent terraces are rotated by

Externí odkaz: http://arxiv.org/abs/cond-mat/0601475

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