@article{4a4349bca25449f7b416edce9832fda9,
title = "Dynamic nuclear polarization at high Landau levels in a quantum point contact",
abstract = "We demonstrate a way to polarize and detect nuclear spin in a gate-defined quantum point contact operating at high Landau levels. Resistively detected nuclear magnetic resonance (RDNMR) can be achieved up to the fifth Landau level and at a magnetic field lower than 1 T. We are able to retain the RDNMR signals in a condition where the spin degeneracy of the first one-dimensional (1D) subband is still preserved. Furthermore, the effects of orbital motion on the first 1D subband can be made smaller than those due to electrostatic confinement. This developed RDNMR technique is a promising means to study electronic states in a quantum point contact near zero magnetic field.",
author = "Fauzi, {M. H.} and A. Noorhidayati and Sahdan, {M. F.} and K. Sato and K. Nagase and Y. Hirayama",
note = "Funding Information: We would like to thank K. Muraki of NTT Basic Research Laboratories for supplying the high-quality wafers for this study. We thank K. Hashimoto, B. Muralidharan, T. Aono, and M. Kawamura for helpful discussions. K.N. and Y.H. acknowledge support from the Graduate Program in Spintronics, Tohoku University. Y.H. acknowledges financial support from KAKENHI Grants No. 15H05867, No. 15K21727, and No. 18H01811. M.H.F. acknowledges financial support from KAKENHI Grant No. 17H02728. Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = may,
day = "29",
doi = "10.1103/PhysRevB.97.201412",
language = "English",
volume = "97",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "20",
}