2012/10/23 by S. Watanabe, Shinji Watanabe, G. Igarashi +6
Physics and Astronomy · #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum and electron transport phenomena #Quantum optics and atomic interactions #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1210.6223
9 pages, 8 figures
openalex publication_date 2012/10/23 · arxiv created 2012/10/24 · arxiv updated 2012/10/25 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
Nuclear electric resonance (NER) is based on nuclear magnetic resonance mediated by spatial oscillations of electron spin domains excited by a radio frequency (RF) electric field, and it allows us to investigate the spatial distribution of the nuclear spin polarization around domain walls (DWs). Here, NER measurements were made of the dynamic nuclear spin polarization (DNP) at the spin phase transition of the fractional quantum Hall state at a Landau level filling factor of ν=2/3. From the RF pulse power and pulse duration dependence of the NER spectrum, we show that the DNP occurs only within ∼ 100 nm around DWs, and that it does not occur in DWs. We also show that DWs are pinned by the hyperfine field from polarized nuclear spins.