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PreprintarXiv licencearXiv

Strain tunability of electron and hole g-factors in CsPbX3: bulk and nanocrystals

  • Aleksander Cząstkiewicz
  • Paweł Scharoch
  • Krzysztof Gawarecki
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Abstract

In this paper, we theoretically study the electron and hole g-factors in inorganic lead-halide perovskites for the reference cubic phase. We employ an 18-band k · p model and determine its parameters using target band structures obtained from DFT calculations. We use the linear response theory to calculate the g-factors and investigate their dependence on external strain. We then perform real-space calculations of the electron and hole g-factors in perovskite nanocrystals. We show that the bulk g-factors can be tuned over a wide range by external strain. In some cases, strain can be used to tune the g-factor through zero. By contrast, the carrier g-factors in CsPbX3 nanocrystals are considerably less sensitive to strain due to quantum confinement.

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Cite

BibTeXRIS
BibTeX
@misc{czastkiewicz2026strain,
  title = {{Strain tunability of electron and hole g-factors in CsPb$X_3$: bulk and nanocrystals}},
  author = {Aleksander Cząstkiewicz and Paweł Scharoch and Krzysztof Gawarecki},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.06696},
  eprint = {2610.06696},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.06696},
}
RIS
TY  - UNPB
TI  - Strain tunability of electron and hole g-factors in CsPbX_3: bulk and nanocrystals
AU  - Aleksander Cząstkiewicz
AU  - Paweł Scharoch
AU  - Krzysztof Gawarecki
PY  - 2026
DA  - 2026/10/05
PB  - arXiv
DO  - 10.48550/arxiv.2610.06696
UR  - https://arxiv.org/abs/2610.06696
AB  - In this paper, we theoretically study the electron and hole g-factors in inorganic lead-halide perovskites for the reference cubic phase. We employ an 18-band k · p model and determine its parameters using target band structures obtained from DFT calculations. We use the linear response theory to calculate the g-factors and investigate their dependence on external strain. We then perform real-space calculations of the electron and hole g-factors in perovskite nanocrystals. We show that the bulk g-factors can be tuned over a wide range by external strain. In some cases, strain can be used to tune the g-factor through zero. By contrast, the carrier g-factors in CsPbX_3 nanocrystals are considerably less sensitive to strain due to quantum confinement.
ER  -