Spin polarization contrast observed in GaAs by force-detected nuclear magnetic resonance
Kent R. Thurber, Lee E. Harrell, Raul Fainchtein, Doran D. Smith
Abstract
We applied the recently developed technique of force-detected nuclear magnetic resonance (NMR) to observe 71Ga, 69Ga, and 75As in GaAs. The nuclear spin-lattice relaxation time is 215 min for 69Ga at 5 K and 4.6 Tesla. We have exploited this long relaxation time to first create and then observe spatially varying nuclear spin polarization within the sample, demonstrating a new form of contrast for magnetic resonance force microscopy (MRFM). Such nuclear spin contrast could be used to indirectly image electron spin polarization in GaAs-based spintronic devices.
Create a lesson
Related papers
Longitudinal and Transverse Thermoelectric Properties in Topological Quantum Materials
Jyoti Duhan, Anil Kumar B. M., Satya N. Guin et al.
Thermally Conditioned Time-Series Forecasting of Grain Growth in Polycrystalline Materials
Eliane Younes, Elie Hachem, Marc Bernacki
Evolutionary Design of Interpretable Spatial Descriptors for Structure-Property Relationship Discovery
Aditya Raghavan, Sergei V Kalinin
Millikelvin magnetometry up to 30~T using a multi-cross micro-Hall sensor
Bingbing Tong, Yinina Ma, Zhenhua Zhao et al.
First-principles study of the formation of Group-IV--vacancy color centers in diamond
Xiangru Han, Adam Gali
Anomalous thermal transport in isotope-enriched germanium carbide
Wenjiang Zhou, Bai Song