Kosterlitz-Thouless transition in a finite size system
| Project/Area Number |
19740225
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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 II
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
IKEGAMI Hiroki The Institute of Physical and Chemical Research, 河野低温物理研究室, 専任研究員 (70313161)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,600,000)
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| Keywords | 2次元電子 / ウィグナー結晶 / コスタリツ・サウレス転 / 準1次元系 / 液体ヘリウム / 表面波 / コスタリツ・サウレス転移 / ウイグナー結晶 / 有限系 / リプロン |
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| Research Abstract |
The Wigner crystal transition is investigated for electrons confined in the quasi one dimensional channels (5, 8, and 15 μm). In the crystal phase, the transport of the electrons is nonlinear because of the Bragg-Cherenkov (BC) of ripplons. We find that the temperature at which the BC scattering disappears increases with decreasing the number of electrons across the channel. This temperature agrees with the temperature at which free dislocations emerge in the channel due to the Kosterlitz-Thouless mechanism.
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Report
(4 results)
Research Products
(23 results)
