Development of a high-performance scanning noise sensor and study on spatial distribution and dispersion characteristic of charge fluctuation in semiconductors
| Project/Area Number |
20740180
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
KAWANO Yukio The Institute of Physical and Chemical Research, 石橋極微デバイス工学研究室, 専任研究員 (90334250)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 走査型ノイズセンサ / 量子ホール効果 / グラフェン / 電荷揺らぎ |
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| Research Abstract |
The purpose of this work is to develop a high-performance scanning noise sensor based on a quantum Hall device and to clarify spatial distribution and dispersion characteristic of charge fluctuation in quantum Hall system. The achievements are as follows :
1. The spatial resolution has been improved to 24nm by implementing a cantilever.
2. The improved system has allowed clarifying temporal response of local charge dynamics in quantum Hall system.
3. The improved system has enabled us to image potential distribution in graphene devices.
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Report
(3 results)
Research Products
(9 results)
