Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2003-05-31
Phys. Rev. Lett. 91, 207602 (2003)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
18 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.91.207602
The shaping of nuclear spin polarization profiles and the induction of nuclear resonances are demonstrated within a parabolic quantum well using an externally applied gate voltage. Voltage control of the electron and hole wave functions results in nanometer-scale sheets of polarized nuclei positioned along the growth direction of the well. RF voltages across the gates induce resonant spin transitions of selected isotopes. This depolarizing effect depends strongly on the separation of electrons and holes, suggesting that a highly localized mechanism accounts for the observed behavior.
Awschalom David D.
Gossard Arthur. C.
Kato Yusuke
Myers Robert C.
Poggio Martino
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