English

Negative thermal expansion in ZnF$_2$

Materials Science 2012-07-03 v1

Abstract

We have investigated temperature dependence of the lattice parameters and the unit cell volume of ZnF2_2 by neutron diffraction and have discovered negative thermal expansion (NTE) at low temperature. To understand why this simple compound exhibits NTE we performed first principle calculations. These calculations reproduce qualitatively the experimental temperature dependence of volume.

Keywords

Cite

@article{arxiv.1104.3529,
  title  = {Negative thermal expansion in ZnF$_2$},
  author = {Tapan Chatterji and Mohamed Zbiri and Thomas C. Hansen},
  journal= {arXiv preprint arXiv:1104.3529},
  year   = {2012}
}
R2 v1 2026-06-21T17:55:41.211Z