See, for example, “Scanning nanothermometer breaks new size record”, IOP Nanotechweb.org, Dec 11, 2015. Other articles include this one: “Researchers introduce new route to thermal measurements with nanometer resolution”, Phys.Org, Nov 30, 2015. See also these two: “New route to nanoscale thermal measurement”, Nanowerk News, Nov 30, 2015; and “Thermal measurements with nanoscale resolution”, WirelessDesignMag, Nov 30, 2015.