Field-periodic magnetoresistance oscillations in thin graphite single crystals with columnar defects
Abstract
The magnetoresistance of thin graphite single crystals with columnar defects has been studied. The field-periodic contribution to the magnetoresistance with a period of 7.5 T has been revealed. The atomic force microscope estimation of the columnar defect diameter shows that the period of the contribution oscillatory as a function of the flux is close to hc/ e per defect. The result agrees with the measurements of Aharonov-Bohm magnetoresistance oscillations in graphene mesoscopic rings [S. Russo et al., Phys. Rev. B 77, 085413 (2008)].
- Publication:
-
Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- November 2009
- DOI:
- 10.1134/S0021364009180167
- Bibcode:
- 2009JETPL..90..480L
- Keywords:
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- 71.25.+a;
- 73.43.Qt;
- 73.63.-b;
- Magnetoresistance;
- Electronic transport in nanoscale materials and structures