| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
rf conductivity and thermoelectric power of the quantum Hall systems have been measured employing coplanar waveguides. By intentionally introducing edges to the sample with a negative gate bias, the resonant peaks we had previously discovered in the quantum Hall regime have been found to be unambiguously attributable to the edge-magnetoplasmon excitation. The gate-bias dependence of the resonant frequency has been explained by capacitive coupling between the edge state and the gate.
We have also measured low-temperature magnetoresistance of the epitaxial graphene. By detailed analysis of the magnetoresistance traces, we deduced the effect of the steps in the SiC substrate, and also the ratio of the areas of the single- to bi-layer graphene for samples simultaneously containing the two types of areas.
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