Hidden negative linear compressibility in lithium l-tartrate

Hamish H.-M. Yeung, Rebecca Kilmurray, Claire L. Hobday, Scott C. McKellar, Anthony K. Cheetham, David R. Allan, Stephen A. Moggach
2017 Physical Chemistry, Chemical Physics - PCCP  
Normal mechanical behaviour at ambient pressure precedes anomalous mechanics as a result of competing strut compression and angle opening.
doi:10.1039/c6cp08690j pmid:28093591 fatcat:a5q3ccwurjcrbgv23vwtxjblgy