| Budget Amount *help |
¥217,100,000 (Direct Cost: ¥167,000,000、Indirect Cost: ¥50,100,000)
Fiscal Year 2014: ¥22,100,000 (Direct Cost: ¥17,000,000、Indirect Cost: ¥5,100,000)
Fiscal Year 2013: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2012: ¥24,310,000 (Direct Cost: ¥18,700,000、Indirect Cost: ¥5,610,000)
Fiscal Year 2011: ¥73,710,000 (Direct Cost: ¥56,700,000、Indirect Cost: ¥17,010,000)
Fiscal Year 2010: ¥73,320,000 (Direct Cost: ¥56,400,000、Indirect Cost: ¥16,920,000)
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| Outline of Final Research Achievements |
Spatially local and high speed manipulations of electron spins are difficult with a magnetic field. Electron spins moving in an electric field feel a magnetic field because of a relativistic spin-orbit interaction. We succeeded in electrical spin generation, manipulation, and detection by using spin-orbit interaction at semiconductor heterostructures without using a magnetic field. Furthermore, we established a novel concept to determine the strength of two different spin-orbit interactions and realized a gate-controlled persistent spin helix state where the spin relaxation is suppressed. These results pave a way for future low power-consumption spintronic devices.
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