Low-frequency spin fluctuations in Skyrmions confined by wires

Optically pumped nuclear polarization and its resistive detection

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Study on ν = 5/2 spin state

Successful gate control
of InSb quantum wells
with ALD gate dielectrics

4. Nanoscale spatial observation of 2D systems

3. Parallel magnetic-field experiments and resistively-detected NMR in InSb quantum systems

Nonlinear spin polarization in InSb 2DEG

Resistively-detected NMR
of InSb at high temperatures

Highly-sensitive resistively-
detected NMR of InSb 2D
systems

Study of electron spin features in 2DEG by using nuclear-spin-based measurements

Electron-spin / nuclear-spin interactions at ν = 2/3 and dynamic nuclear polarization

Major research activities

1. Manipulation of nuclear spins in GaAs quantum systems and highly-sensitive NMR

Nuclear electric resonance based on electron-spin / nuclear-spin interactions

Resistively-detected nuclear-spin-based measurements

2. Coherent control and multiple-pulse sequence

Measurement of the noise spectrum using a multiple-pulse sequence

Coherent control of nuclear spins in point contact device

Scanning probe microscopy
of the quantum Hall states

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