Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems

Kawamura, M.; Yamashita, T.; Takahashi, H.; Masubuchi, S.; Hashimoto, Y.; Katsumoto, S.; Machida, T.
January 2010
Applied Physics Letters;1/18/2010, Vol. 96 Issue 3, p032102
Academic Journal
We show electrical coherent manipulation of quadrupole-split nuclear spin states in a GaAs/AlGaAs heterostructure on the basis of the breakdown of quantum Hall effect. The electric quadrupole splitting in nuclear spin energy levels is intentionally enhanced by applying an external stress to the heterostructure. Nuclear magnetic resonance spectra with clearly separated triple peaks are obtained, and Rabi oscillations are observed between the nuclear spin energy levels. The decay of the spin-echo signal is compared between the cases before and after the enhancement of quadrupole splitting.


Related Articles

  • Electrical polarization of nuclear spins in a breakdown regime of quantum Hall effect. Kawamura, M.; Takahashi, H.; Sugihara, K.; Masubuchi, S.; Hamaya, K.; Machida, T. // Applied Physics Letters;1/8/2007, Vol. 90 Issue 2, p022102 

    The authors have developed a method for electrical polarization of nuclear spins in quantum Hall systems. In a breakdown regime of odd-integer quantum Hall effect (QHE), excitation of electrons to the upper Landau subband with opposite spin polarity dynamically polarizes nuclear spins through...

  • Manipulating nuclear spins via quantum Hall edge channels. Komiyama, S.; Machida, T.; Ikushima, K. // AIP Conference Proceedings;2005, Vol. 772 Issue 1, p505 

    Edge channels formed by spin-split Landau levels in quantum Hall electron systems are demonstrated to be a unique tool to control and detect nuclear spins. Nuclear spins along the edge channels are strongly polarized through the hyperfine interaction. The nuclear spins evolve coherently during a...

  • Relative orientation of chemical shielding and dipolar coupling tensors: Mixed single- and... Bark, M.; Nielsen, N. C. // Journal of Chemical Physics;5/8/1997, Vol. 106 Issue 18, p7578 

    Discusses a mixed single and double-quantum homonuclear rotary resonance nuclear magnetic resonance (NMR) of rotating solids. Magnitude and orientation of the chemical shielding and dipolar coupling tensors; Numerical simulation and iterative fitting; Sensitivity towards structural parameters...

  • One- and two-dimensional ensemble quantum computing in spin Liouville space. Madi, Z.L.; Bruschweiler, R. // Journal of Chemical Physics;12/22/1998, Vol. 109 Issue 24, p10603 

    Investigates the nuclear magnetic resonance implementation of spin ensemble quantum computing in one and two dimensions. Comparison between ensemble and pure state quantum computing; Application of the Liouville space formalism; Details on each parallelization schemes.

  • Quantum computation and spin physics (invited). DiVincenzo, David P. // Journal of Applied Physics;4/16/1997, Vol. 81 Issue 8, p4602 

    Presents a review of the physical implementation of the quantum computation within spin systems or other two-state quantum systems. Importance of the controlled-NOT or quantum XOR gate; Building of error-robust quantum states; Quantum error correction.

  • Thermally assisted macroscopic quantum resonance on a single-crystal of Mn12-acetate. Lionti, F.; Thomas, L. // Journal of Applied Physics;4/16/1997, Vol. 81 Issue 8, p4608 

    Studies thermally assisted macroscopic quantum resonance on a single-crystal of Mn12-acetate. Magnetization measurements; Resonant quantum tunneling; Hysteresis loop measurements.

  • Theory of multiple quantum dynamic NMR spectroscopy. Gamliel, D.; Luz, Z.; Vega, S. // Journal of Chemical Physics;1/1/1988, Vol. 88 Issue 1, p25 

    A formalism for calculating dynamic multiple quantum NMR line shapes obtained by the time proportional phase increment (TPPI) method from spin-1/2 systems is developed. The formalism is essentially an extension of the related formalism in Liouville space used in the theory of conventional...

  • High-order multiple quantum excitation in [sup 13]C nuclear magnetic resonance spectroscopy of... Antzutkin, Oleg N.; Tycko, Robert // Journal of Chemical Physics;2/8/1999, Vol. 110 Issue 6, p2749 

    Demonstrates excitation and detection of high-order multiple quantum coherences among [sup 13]C nuclear spins in singly-[sup 13]C-labeled organic solids. Multiple quantum signals involving at least ten quanta of spin angular momentum observed in nuclear magnetic resonance measurements.

  • Implementation of the Deutsch—Jozsa algorithm on an ion-trap quantum computer. Gulde, Stephan; Riebe, Mark; Lancaster, Gavin P. T.; Becher, Christoph; Eschner, Jürgen; Häffner, Hartmut; Schmidt-Kaler, Ferdinand; Chuang, Isaac L.; Blatt, Rainer // Nature;1/2/2003, Vol. 421 Issue 6918, p48 

    Determining classically whether a coin is fair (head on one side, tail on the other) or fake (heads or tails on both sides) requires an examination of each side. However, the analogous quantum procedure (the Deutsch -- Jozsa algorithm[SUP1,2]) requires just one examination step. The Deutsch --...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics