Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices

Tetsuo Kodera; Wilfred G. Van Der Wiel; Tatsuro Maruyama; Yoshiro Hirayama; Seigo Tarucha

doi:10.1142/9789812701619_0069

Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices

Tetsuo Kodera, Wilfred G. Van Der Wiel, Tatsuro Maruyama, Yoshiro Hirayama, Seigo Tarucha

Research output: Chapter in Book/Report/Conference proceeding › Chapter

2 Citations (Scopus)

Abstract

We study few-electron GaAs quantum dot devices designed for generating a local AC magnetic field (~mT) in order to realize single-electron spin resonance. The AC magnetic field is induced by an AC current driven through a metal line in the vicinity of the dot. The Landé g-factor in the quantum dot is derived from the large (~T) in-plane magnetic field evolution of the Zeeman splitting observed in both Coulomb peak spacings and Coulomb diamonds. The obtained g-factor (|g| = 0.23) is significantly smaller than that for bulk GaAs. We measure electron transport through the dot for various AC currents and find evidence for the presence of an AC electric field in the form of photon assisted tunneling and current rectification. So far, we cannot confirm any effect of the AC magnetic field.

Original language	English
Title of host publication	Realizing Controllable Quantum States
Subtitle of host publication	Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation
Publisher	World Scientific Publishing Co.
Pages	445-450
Number of pages	6
ISBN (Electronic)	9789812701619
ISBN (Print)	9789812564689
DOIs	https://doi.org/10.1142/9789812701619_0069
Publication status	Published - 2005 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1142/9789812701619_0069

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Kodera, T., Van Der Wiel, W. G., Maruyama, T., Hirayama, Y., & Tarucha, S. (2005). Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices. In Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation (pp. 445-450). World Scientific Publishing Co.. https://doi.org/10.1142/9789812701619_0069

Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices. / Kodera, Tetsuo; Van Der Wiel, Wilfred G.; Maruyama, Tatsuro et al.
Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co., 2005. p. 445-450.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Kodera, T, Van Der Wiel, WG, Maruyama, T, Hirayama, Y & Tarucha, S 2005, Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices. in Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co., pp. 445-450. https://doi.org/10.1142/9789812701619_0069

Kodera T, Van Der Wiel WG, Maruyama T, Hirayama Y, Tarucha S. Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices. In Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co. 2005. p. 445-450 doi: 10.1142/9789812701619_0069

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Spintronics in quantum dots: Fabrication and characterization of quantum dot single electron spin resonance devices

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