التفاصيل البيبلوغرافية
| العنوان: |
Contactless microwave studies of weak localization in epitaxial graphene. |
| المؤلفون: |
Drabiñska, Aneta1 aneta.drabinska@fuw.edu.pl, Wolos, Agnieszka1,2, Kaminska, Maria1, Strupinski, Wlodek3, Baranowski, J. M.1,3 |
| المصدر: |
Physical Review B: Condensed Matter & Materials Physics. Jul2012, Vol. 86 Issue 4, p1-5. 5p. |
| مصطلحات موضوعية: |
*GRAPHENE, *LOCALIZATION theory, *MICROWAVE detectors, *SILICON carbide, *SCATTERING length (Nuclear physics), *ELECTRON scattering, *TEMPERATURE effect |
| مستخلص: |
A microwave detection method was applied to study weak localization in epitaxial graphene sheets grown on SiC substrates. Both coherence and scattering length values were obtained. The intervalley scattering length was found to be about one order of magnitude greater than the intravalley and warping lengths. The influence of width and amplitude of the signal on the decoherence rate was discussed. The temperature dependence and the angular dependence of the observed signal were presented. The decoherence rate was found to depend linearly on temperature, showing the electron-electron scattering mechanism, evidencing electron spin-flip scattering. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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