Výsledky vyhledávání - "Woods, G. T."

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Analysis of Point-contact Andreev Reflection Spectra in Spin Polarization Measurements

Autor: Woods, G. T., Soulen Jr., R. J., Mazin., I. I., Nadgorny, B., Osofsky, M. S., Sanders, J., Srikanth, H., Egelhoff, W. F., Datla, R.

We present a systematic analysis of point-contact Andreev reflection (PCAR) spectra for ferromagnetic materials, using both modeling and experimental data. We consider the relationship between ballistic and diffusive transport, the effect of differen

Externí odkaz: http://arxiv.org/abs/cond-mat/0307693

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Measurements of Spin Polarization of Epitaxial SrRuO3 Thin Films

Autor: Nadgorny, B., Osofsky, M. S., Singh, D. J., Woods, G. T., Soulen, Jr., R. J., Lee, M. K., Bu, S. D., Eom, C. B.

We have measured the transport spin-polarization of epitaxial thin films of the conductive ferromagnetic oxide, SrRuO3, using Point Contact Andreev Reflection Spectroscopy (PCAR). In spite of the fact that spin-up and spin-down electronic densities o

Externí odkaz: http://arxiv.org/abs/cond-mat/0209178

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Orbital-resolved Soft X-Ray Spectroscopy in NaV2O5

Autor: Zhang, G. P., Woods, G. T., Shirley, Eric L., Callcott, T. A., Lin, L., Chang, G. S., Sales, B. C., Mandrus, D., He, J.

We demonstrate that angle-resolved soft x-ray spectroscopy can resolve absorption by inequivalent oxygen sites and by different orbitals belonging to the same site in NaV2O5. By rotating the polarization direction, we see a dramatic change in the abs

Externí odkaz: http://arxiv.org/abs/cond-mat/0202424

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Electron Correlation Effects in Resonant Inelastic X-ray Scattering of NaV2O5

Autor: Zhang, G. P., Callcott, T. A., Woods, G. T., Lin, L., Sales, Brian, Mandrus, D., He, J.

Element- and site-specific resonant inelastic x-ray scattering spectroscopy (RIXS) is employed to investigate electron correlation effects in {$\rm NaV_2O_5$}. In contrast to single photon techniques, RIXS at the vanadium $L_3$ edge is able to probe

Externí odkaz: http://arxiv.org/abs/cond-mat/0201497

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Soft x-ray spectroscopy measurements of the p-like density of states of B in MgB2 and evidence for surface boron oxides on exposed surfaces

Autor: Callcott, T. A., Lin, L., Woods, G. T., Zhang, G. P., Thompson, J. R., Paranthaman, M., Ederer, D. L.

Soft X-ray absorption and fluorescence measurements are reported for the K-edge of B in MgB2. The measurements confirm a high density of B pxy(sigma)-states at the Fermi edge and extending to approximately 0.9 eV above the edge. A strong resonance is

Externí odkaz: http://arxiv.org/abs/cond-mat/0103593

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