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Mechanical Metamaterials: Negative Linear Compressibility and Auxeticity in Boron Arsenate (Ann. Phys. 5/2020)
Author(s) -
GrimaCornish James N.,
VellaŻarb Liana,
Grima Joseph N.
Publication year - 2020
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.202070023
Subject(s) - compressibility , tetrahedron , boron , metamaterial , arsenate , materials science , condensed matter physics , physics , thermodynamics , crystallography , chemistry , quantum mechanics , arsenic , nuclear physics , metallurgy
A novel mechanism is identified by James N. Grima‐Cornish, Liana Vella‐Żarb, and Joseph N. Grima in article number 1900550. It is found to lead to negative linear compressibility (NLC) in boron arsenate, which arises from deformations in the framework tetrahedra rather than tetrahedral rotations. It is hypothesized that the generic mechanisms identified will also apppear in materials and metamaterials with similar characteristics.