Resistively detected nuclear magnetic resonance via a single InSb two-dimensional electron gas at high temperature

Kaifeng Yang; Hongwu Liu; Katsumi Nagase; T. D. Mishima; M. B. Santos; Y. Hirayama

doi:10.1063/1.3579257

Resistively detected nuclear magnetic resonance via a single InSb two-dimensional electron gas at high temperature

Kaifeng Yang, Hongwu Liu, Katsumi Nagase, T. D. Mishima, M. B. Santos, Y. Hirayama

SCI - Physics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

We report on the demonstration of the resistively detected nuclear magnetic resonance (RDNMR) of a single InSb two-dimensional electron gas (2DEG) at elevated temperatures up to 4 K. The RDNMR signal of ¹¹⁵In in the simplest pseudospin quantum Hall ferromagnet triggered by a large direct current shows a peak-dip line shape, where the nuclear relaxation time T₁ at the peak and the dip is different but almost temperature independent. The large Zeeman, cyclotron, and exchange energy scales of the InSb 2DEG contribute to the persistence of the RDNMR signal at high temperatures.

Original language	English
Article number	142109
Journal	Applied Physics Letters
Volume	98
Issue number	14
DOIs	https://doi.org/10.1063/1.3579257
Publication status	Published - 2011 Apr 4

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We report on the demonstration of the resistively detected nuclear magnetic resonance (RDNMR) of a single InSb two-dimensional electron gas (2DEG) at elevated temperatures up to 4 K. The RDNMR signal of 115In in the simplest pseudospin quantum Hall ferromagnet triggered by a large direct current shows a peak-dip line shape, where the nuclear relaxation time T1 at the peak and the dip is different but almost temperature independent. The large Zeeman, cyclotron, and exchange energy scales of the InSb 2DEG contribute to the persistence of the RDNMR signal at high temperatures.",

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AU - Yang, Kaifeng

AU - Liu, Hongwu

AU - Nagase, Katsumi

AU - Mishima, T. D.

AU - Santos, M. B.

AU - Hirayama, Y.

PY - 2011/4/4

Y1 - 2011/4/4

N2 - We report on the demonstration of the resistively detected nuclear magnetic resonance (RDNMR) of a single InSb two-dimensional electron gas (2DEG) at elevated temperatures up to 4 K. The RDNMR signal of 115In in the simplest pseudospin quantum Hall ferromagnet triggered by a large direct current shows a peak-dip line shape, where the nuclear relaxation time T1 at the peak and the dip is different but almost temperature independent. The large Zeeman, cyclotron, and exchange energy scales of the InSb 2DEG contribute to the persistence of the RDNMR signal at high temperatures.

AB - We report on the demonstration of the resistively detected nuclear magnetic resonance (RDNMR) of a single InSb two-dimensional electron gas (2DEG) at elevated temperatures up to 4 K. The RDNMR signal of 115In in the simplest pseudospin quantum Hall ferromagnet triggered by a large direct current shows a peak-dip line shape, where the nuclear relaxation time T1 at the peak and the dip is different but almost temperature independent. The large Zeeman, cyclotron, and exchange energy scales of the InSb 2DEG contribute to the persistence of the RDNMR signal at high temperatures.

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Resistively detected nuclear magnetic resonance via a single InSb two-dimensional electron gas at high temperature

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