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Updated: Jul 6, 2026
11:42
Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
Published on: July 24, 2015
Hyperfine interactions in graphene and related carbon nanostructures
1Ecole Polytechnique Fédérale de Lausanne, Institute of Chemical Sciences and Engineering and Institute of Theoretical Physics, CH-1015 Lausanne, Switzerland. oleg.yazyev@epfl.ch
Nano Letters
|March 7, 2008
Summary
Hyperfine interactions in graphene nanostructures are analyzed. Understanding these magnetic interactions enables the design of carbon nanostructures for advanced spintronics and quantum computing applications.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Quantum Chemistry
Background:
- Hyperfine interactions are crucial for electron spin manipulation in nanomaterials.
- Graphene and carbon nanostructures are promising for spintronics and quantum information processing.
- Understanding these interactions is key to improving spin coherence times.
Purpose of the Study:
- To investigate hyperfine interactions in graphene and related carbon nanostructures.
- To establish a method for accurately describing these interactions.
- To provide parameters for designing improved carbon-based nanodevices.
Main Methods:
- First principles calculations on graphene fragments.
- Statistical analysis of interaction parameters.
- Determination of hyperfine interaction parameters for 13C and other nuclear spins.
Main Results:
- Both isotropic and dipolar hyperfine interactions in sp2 carbon nanostructures are accurately described by local electron spin distribution and atomic structure.
- A comprehensive set of parameters for hyperfine interactions at impurities and edges was determined.
- The findings facilitate the design of nanostructures with enhanced electron spin coherence.
Conclusions:
- The study provides a framework for understanding and controlling hyperfine interactions in carbon nanostructures.
- Results enable the development of graphene-based materials for spintronics and quantum computing.
- Practical guidelines for minimizing hyperfine interactions are presented.
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