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Room-temperature voltage tunable phonon thermal conductivity via reconfigurable interfaces in ferroelectric thin films.

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      Abstract

      Dynamic control of thermal transport in solid-state systems is a transformative capability with the promise to propel technologies including phononic logic, thermal management, and energy harvesting. A solid-state solution to rapidly manipulate phonons has escaped the scientific community. We demonstrate active and reversible tuning of thermal conductivity by manipulating the nanoscale ferroelastic domain structure of a Pb(Zr0.3Ti0.7)O3 film with applied electric fields. With subsecond response times, the room-temperature thermal conductivity was modulated by 11%.

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      Affiliations
      [1 ] Sandia National Laboratories , Albuquerque, New Mexico 87185 United States.
      Journal
      Nano Lett.
      Nano letters
      American Chemical Society (ACS)
      1530-6992
      1530-6984
      Mar 11 2015
      : 15
      : 3
      25695423 10.1021/nl504505t

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