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Updated: May 23, 2026
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Preparation and Characterization of C60/Graphene Hybrid Nanostructures
Published on: May 15, 2018
RKKY interaction in AB-stacked multilayer graphene.
Liwei Jiang1, Xiaoling Lü, Wenzhu Gao
1National Laboratory of Superhard Materials, Department of Physics, Jilin University, Changchun 130012, People's Republic of China.
Summary
We studied RKKY interaction in AB-stacked multilayer graphene (ABSMLG). The number of layers and impurity positions affect interaction decay, with distinct power laws for odd and even layers.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Surface Science
Background:
- The RKKY interaction is crucial for understanding magnetism in materials.
- Graphene and its multilayer variants exhibit unique electronic properties.
- Surface impurities can significantly alter material behavior.
Purpose of the Study:
- To theoretically investigate the RKKY interaction between magnetic impurities on AB-stacked multilayer graphene (ABSMLG).
- To compare RKKY interaction properties in ABSMLG with those in monolayer graphene.
- To analyze the influence of ABSMLG thickness and impurity positions on interaction decay.
Main Methods:
- Utilized the lattice Green's function technique for theoretical analysis.
- Derived asymptotic expressions for RKKY interactions in the long-distance limit.
- Performed numerical calculations to study interaction properties.
Main Results:
- RKKY interaction in ABSMLG shows distinct properties compared to monolayer graphene.
- Interaction decay depends complexly on the number of layers (odd/even parity) and impurity sublattice positions.
- For even-layered ABSMLG, decay rates are 1/R(2), 1/R(4), and 1/R(6).
- For odd-layered ABSMLG, decay rates are 1/R(2), 1/R(3), and 1/R(3).
Conclusions:
- The findings provide analytical expressions for RKKY interaction in ABSMLG.
- These expressions are quantitatively valid for distances greater than ten times the lattice constant.
- The study highlights the tunable nature of magnetic interactions in multilayer graphene systems.
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