Scientists map heat beneath Antarctica’s icesheets

Phys.org  December 13, 2022 Geothermal heat flow (GHF) can reveal past and present plate tectonic processes. In Antarctica, GHF has further consequences in predicting the response of ice sheets to climate change. In a review article an international team of researchers (Australia, Germany, USA – Stony Brook University, Colorado College) discuss variations in Antarctic GHF models based on geophysical methods and draw insights into tectonics and GHF model usage for ice sheet modelling. The inferred GHF at continental scale for West Antarctica points to numerous contributing influences, including non-steady state neotectonic processes. Combined influences cause especially high values in the […]

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 […]