Future information technologies: Nanoscale heat transport under the microscope

Science Daily  August 21, 2018 An international team of researchers (Germany, USA – MIT, France) examined heat transport in a metallic-magnetic model system. Their model system consists of a nanometre-thin ferromagnetic nickel layer (12.4 nm) applied to a magnesium oxide substrate, with an even thinner layer of gold (5.6 nm) deposited over the nickel. They introduced heat locally into the model system. They found that the model system does not take the roughly one picosecond to reach thermal equilibrium as expected, but instead a hundred times longer. According to the researchers future data memories based on heat-assisted magnetic recording techniques […]