Electric Field Modulation of Galvanomagnetic Properties of Mesoscopic Graphite

Details Electric Field Modulation of Galvanomagnetic Properties of Mesoscopic Graphite Electric Field Modulation of Galvanomagnetic Properties of Mesoscopic Graphite

2004-10-13

arxiv.org/abs/cond-mat/0410315v1

Phys. Rev. Lett. 94, 176803 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures included, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.94.176803

Electric field effect devices based on mesoscopic graphite are fabricated for galvanomagnetic measurements. Strong modulation of magneto-resistance and Hall resistance as a function of gate voltage is observed as sample thickness approaches the screening length. Electric field dependent Landau level formation is detected from Shubnikov de Haas oscillations in magneto-resistance. The effective mass of electron and hole carriers has been measured from the temperature dependant behavior of these oscillations.

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