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One-dimensional scattering in K-hollandite: theory and experiment
L A Brussaard1, H Boysen, A Fasolino
1Institute of Theoretical Physics, University of Nijmegen, Postbus 9010, 6500 GL Nijmegen, The Netherlands. lindab@sci.kun.nl
Acta Crystallographica. Section A, Foundations of Crystallography
|February 8, 2002
Summary
Calculations using Frenkel-Kontorova and double-chain models explain K-hollandite
Area of Science:
- Condensed matter physics
- Materials science
- Crystallography
Background:
- K-hollandite exhibits complex diffraction patterns.
- Understanding the atomic interactions within K-hollandite is crucial for materials science applications.
Purpose of the Study:
- To explain the experimental diffraction pattern of K-hollandite.
- To investigate the atomic interactions and structural behavior of K-hollandite.
Main Methods:
- Utilizing the Frenkel-Kontorova model for interatomic potentials.
- Employing a double-chain model to simulate K-hollandite structure.
- Incorporating a deformable host chain and Lennard-Jones-like interchain interactions.
Main Results:
- The study successfully explains the experimental diffraction pattern of K-hollandite.
- Deformable host chains and specific interchain interactions yield optimal results.
- Both guest and host components within K-hollandite are found to deform, indicating a pinned system.
Conclusions:
- The Frenkel-Kontorova and double-chain models provide accurate insights into K-hollandite's structure.
- Debye-Waller factors are inappropriate for the double-chain model in this context.