title: Room-temperature voltage tunable phonon thermal conductivity via reconfigurable interfaces in ferroelectric thin films.
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%.
authors.affiliation: Sandia National Laboratories , Albuquerque, New Mexico 87185 United States.
authors.forename: Jon F
authors.initials: JF
authors.lastname: Ihlefeld
authors.forename: Brian M
authors.initials: BM
authors.lastname: Foley
authors.forename: David A
authors.initials: DA
authors.lastname: Scrymgeour
authors.forename: Joseph R
authors.initials: JR
authors.lastname: Michael
authors.forename: Bonnie B
authors.initials: BB
authors.lastname: McKenzie
authors.forename: Douglas L
authors.initials: DL
authors.lastname: Medlin
authors.forename: Margeaux
authors.initials: M
authors.lastname: Wallace
authors.forename: Susan
authors.initials: S
authors.lastname: Trolier-McKinstry
authors.forename: Patrick E
authors.initials: PE
authors.lastname: Hopkins
mesh_terms: D004574:Electromagnetic Fields; D008422:Materials Testing; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D011829:Radiation Dosage; D013696:Temperature; D013814:Thermal Conductivity; D014732:Vibration
chemical_list: D008567:Membranes, Artificial
keywords: Thermal conductivity; ferroelectric; nano domain; time domain thermoreflectance; tunable