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Title: Voltage tunability of thermal conductivity in ferroelectric materials

Abstract

A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport at room temperature and above. The invention eliminates the necessity of using moving components or poor efficiency methods to control heat transfer, enabling a means of thermal energy control at the micro- and nano-scales.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1241332
Patent Number(s):
9,255,347
Application Number:
14/546,147
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 18
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Ihlefeld, Jon, and Hopkins, Patrick Edward. Voltage tunability of thermal conductivity in ferroelectric materials. United States: N. p., 2016. Web.
Ihlefeld, Jon, & Hopkins, Patrick Edward. Voltage tunability of thermal conductivity in ferroelectric materials. United States.
Ihlefeld, Jon, and Hopkins, Patrick Edward. Tue . "Voltage tunability of thermal conductivity in ferroelectric materials". United States. https://www.osti.gov/servlets/purl/1241332.
@article{osti_1241332,
title = {Voltage tunability of thermal conductivity in ferroelectric materials},
author = {Ihlefeld, Jon and Hopkins, Patrick Edward},
abstractNote = {A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport at room temperature and above. The invention eliminates the necessity of using moving components or poor efficiency methods to control heat transfer, enabling a means of thermal energy control at the micro- and nano-scales.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {2}
}

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