Room-Temperature Voltage Tunable Phonon Thermal Conductivity via Reconfigurable Interfaces in Ferroelectric Thin Films
Nano Letters2015Vol. 15(3), pp. 1791–1795
Citations Over TimeTop 10% of 2015 papers
Jon F. Ihlefeld, Brian M. Foley, David Scrymgeour, Joseph R. Michael, Bonnie Beth McKenzie, Douglas L. Medlin, Margeaux Wallace, Susan Trolier‐McKinstry, Patrick E. Hopkins
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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