@article{6a2106b952f94fca931122f8b308bb80,
title = "Rational design of materials with extreme negative compressibility: Selective soft-mode frustration in KMn[Ag(CN) 2] 3",
abstract = "We show that KMn[Ag(CN) 2] 3 exhibits the strongest negative linear compressibility (NLC) effect over the largest pressure range yet observed. Variable pressure neutron powder diffraction measurements reveal that its crystal lattice expands along the c axis of its trigonal cell under increasing hydrostatic pressure, while contracting along the a axis. This corresponds to a {"}wine-rack{"}-like mechanism for NLC that we find also results in anisotropic negative thermal expansion (NTE) in the same material. Inclusion of extra-framework K + counterions has minimal effect on framework flexibility (and hence the magnitude of NTE/NLC) but selectively frustrates the soft phonon modes responsible for destroying NLC in the related material Ag 3[Co(CN) 6].",
author = "Cairns, {Andrew B.} and Thompson, {Amber L.} and Tucker, {Matthew G.} and Julien Haines and Goodwin, {Andrew L.}",
year = "2012",
month = mar,
day = "14",
doi = "10.1021/ja204908m",
language = "English",
volume = "134",
pages = "4454--4456",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "10",
}