# Acoustic phonons and strain in core/shell nanowires

@article{Kloeffel2014AcousticPA, title={Acoustic phonons and strain in core/shell nanowires}, author={Christoph Kloeffel and Mircea Trif and Daniel Loss}, journal={Physical Review B}, year={2014}, volume={90}, pages={115419} }

We study theoretically the low-energy phonons and the static strain in cylindrical core/shell nanowires (NWs). Assuming pseudomorphic growth, isotropic media, and a force-free wire surface, we derive algebraic expressions for the dispersion relations, the displacement fields, and the stress and strain components from linear elasticity theory. Our results apply to NWs with arbitrary radii and arbitrary elastic constants for both core and shell. The expressions for the static strain are…

## 17 Citations

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## References

SHOWING 1-10 OF 32 REFERENCES

### Foundations of Nanomechanics: From Solid-State Theory to Device Applications

- Materials Science
- 2004

1. Introduction: Linear Atomic Chains.- 2. Two- and Three-Dimensional Lattices.- 3. Properties of the Phonon Gas.- 4. Stress and Strain.- 5. Elasticity Relations.- 6. Static Deformations of Solids.-…

### Phonons in Nanostructures

- Physics
- 2001

Preface The first part: 1. Phonons in nanostructures 2. Phonons in bulk cubic crystals 3. Phonons in bulk wurtzite crystals 4. Raman properties of bulk phonons 5. Occupation number representation and…

### Fundamentals of Semiconductors – Physics and Materials Properties

- Physics
- 1997

— quantum confinement of electrons and phonons. All chapters have their own references (from historical important papers to modern monographs and textbooks) and are enriched with tables of material…

### Spin-orbit Coupling Effects in Two-Dimensional Electron and Hole Systems

- Physics
- 2003

Introduction.- Band Structure of Semiconductors.- The Extended Kane Model.- Electron and Hole States in Quasi 2D Systems.- Origin of Spin-Orbit Coupling Effects.- Inversion Asymmetry Induced Spin…

### Solid State Theory: An Introduction

- Physics, Education
- 2004

An Introduction is a textbook for graduate students of physics and material sciences. Whilst covering the traditional topics of older textbooks, it also takes up new developments in theoretical…

### Phys

- Rev. B 87, 161305(R)
- 2013

### Nanotechnology21

- 415702
- 2010

### Phys

- Rev. B84, 195314
- 2011

### Phys

- Rev. B 88, 241405(R)
- 2013