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Giant Nonhysteretic Responses of Two-Phase Nanostructured Alloys

Wei-Feng Rao, Manfred Wuttig, and Armen G. Khachaturyan
Phys. Rev. Lett. 106, 105703 – Published 10 March 2011
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Abstract

A new class of functional materials with giant nonhysteretic strain responses to applied fields is considered. They are decomposed two-phase systems consisting of single-domain nanoprecipitates of a low-symmetry phase. Their strain response is caused by the field-induced change of structural orientation of the domain states of these precipitates. The superresponse follows from the novel concept of structural anisotropy that is analogous to the magnetic anisotropy. Its vanishing produces a new glasslike structural state. The developed phase field theory and modeling allow us to formulate criteria for searching superresponsive two-phase nanostructured alloys.

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  • Received 11 October 2010

DOI:https://doi.org/10.1103/PhysRevLett.106.105703

© 2011 American Physical Society

Authors & Affiliations

Wei-Feng Rao1, Manfred Wuttig2, and Armen G. Khachaturyan1,*

  • 1Department of Materials Science and Engineering, Rutgers University, Piscataway, New Jersey, 08854, USA
  • 2Department of Materials Science and Engineering, University of Maryland, College Park, Maryland, 20742, USA

  • *Corresponding author. khach@jove.rutgers.edu

See Also

Material Strongly Deformed by Magnetic Field

Don Monroe
Phys. Rev. Focus 27, 9 (2011)

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Vol. 106, Iss. 10 — 11 March 2011

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