Spin ice (nonfiction): Difference between revisions
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File:Nobel Ice (Fabergé egg).jpg|link=Dysprosium Titanate|[[ | File:Nobel Ice (Fabergé egg).jpg|link=Dysprosium Titanate|Fabergé egg recently commissioned by [[Dysprosium Titanate]] made from Spin Ice, may be trap for [[Roger Zelazny]]. | ||
File:Gnotilus-fighting-Heracles.jpg|link=Gnotilus|[[Gnotilus]] has an unlucky habit of slipping and falling on Spin Ice. | File:Gnotilus-fighting-Heracles.jpg|link=Gnotilus|[[Gnotilus]] has an unlucky habit of slipping and falling on Spin Ice. | ||
Brion_Gysin.jpg|Brion Gysion uses [[scrying engine]] to preview [[Gnotilus]] slipping on Spin Ice. | Brion_Gysin.jpg|Brion Gysion uses [[scrying engine]] to preview [[Gnotilus]] slipping on Spin Ice. | ||
Revision as of 08:49, 20 June 2016
A spin ice is a substance that does not have a single minimal-energy state.
It has "spin" degrees of freedom, i.e., it is a magnet, with frustrated interactions that prevent it from completely freezing.
Spin ices show low-temperature properties, residual entropy in particular, closely related to those of crystalline water ice.
The most prominent compounds with such properties are dysprosium titanate (nonfiction) and holmium titanate.
The magnetic ordering of a spin ice resembles the positional ordering of hydrogen atoms in conventional water ice.
Recent experiments have found evidence for the existence of deconfined magnetic monopoles in these materials, with analogous properties to the hypothetical magnetic monopoles postulated to exist in the vacuum.
In the News
Fabergé egg recently commissioned by Dysprosium Titanate made from Spin Ice, may be trap for Roger Zelazny.
Gnotilus has an unlucky habit of slipping and falling on Spin Ice.
Brion Gysion uses scrying engine to preview Gnotilus slipping on Spin Ice.
Fiction cross-reference
Nonfiction cross-reference
External links: