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Longitudinal inverted compressibility in super-strained metamaterials

Nicolaou, Zachary G. and Motter, Adilson E. (2013) Longitudinal inverted compressibility in super-strained metamaterials. Journal of Statistical Physics, 151 (6). pp. 1162-1174. ISSN 0022-4715.

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We develop a statistical physics theory for solid-solid phase transitions in which a metamaterial undergoes longitudinal contraction in response to increase in external tension. Such transitions, which are forbidden in thermodynamic equilibrium, have recently been shown to be possible during the decay of metastable, super-strained states. We present a first-principles model to predict these transitions and validate it using molecular dynamics simulations. Aside from its immediate mechanical implications, our theory points to a wealth of analogous inverted responses, such as inverted susceptibility or heat-capacity transitions, allowed when considering realistic scales.

Item Type:Article
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Nicolaou, Zachary G.0000-0003-4542-4256
Additional Information:© 2013 Springer Science+Business Media New York. Received: 23 July 2012; Accepted: 28 March 2013; Published online: 13 April 2013. This work was supported by an NSF Graduate Research Fellowship and the NSF Grant No. DMS-1057128.
Funding AgencyGrant Number
NSF Graduate Research FellowshipUNSPECIFIED
Subject Keywords:Phase transitions; Compressibility; Materials; Nonconvexities
Issue or Number:6
Record Number:CaltechAUTHORS:20130415-090456539
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37929
Deposited By: Ruth Sustaita
Deposited On:15 Apr 2013 16:25
Last Modified:09 Mar 2020 13:19

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