News tagged with thermal fluctuations

Controlling skyrmions for better electronics

Physicists at the University of Hamburg managed for the first time to individually write and delete single skyrmions, a knot-like magnetic entity. Such vortex-shaped magnetic structures exhibit unique properties ...

Aug 08, 2013
4.7 / 5 (18) 6 | with audio podcast

The secret life of knots

Nanotechnologies require a detailed knowledge of the molecular state. For instance, it is useful to know when and how a generic polymer, a long chain of polymers (chain of beads), knots. The study of molecular ...

Jun 10, 2013
5 / 5 (1) 0

TDK sees hard drive breakthrough in areal density

(Phys.org)—TDK has realized increased areal density of its hard disk drives. TDK has set a new record, compared to previous areal density at 1Tbit/inch2, with the new stat of increased density to 1.5Tbit ...

Oct 03, 2012 report
4.5 / 5 (10) 10 | with audio podcast

Energy-saving chaperon Hsp90

A special group of proteins, the so-called chaperons, helps other proteins to obtain their correct conformation. Until now scientists supposed that hydrolyzing ATP provides the energy for the large conformational ...

Jan 13, 2012
5 / 5 (1) 1 | with audio podcast

Tiny generators turn waste heat into power

The second law of thermodynamics is a big hit with the beret-wearing college crowd because of its implicit existential crunch. The tendency of a closed systems to become increasingly disordered if no energy is added or removed ...

Sep 28, 2010
4.5 / 5 (10) 2 | with audio podcast

Greener memory from random motion

Random thermal fluctuations in magnetic memory can be harnessed to reduce the energy required to store information, according to an experiment reported in the current issue of Physical Review Letters. The de ...

Mar 01, 2010
2.8 / 5 (5) 0 | with audio podcast
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