Shastry, B Sriram (2003) Spin ice and other frustrated magnets on the pyrochlore lattice. In: Physica B: Condensed Matter, 329-33 (2). pp. 1024-1027.
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The recent identification of the dysprosium titanate compound Dy2Ti2O7 as a "Spin ice", i.e. the spin analog of regular entropic ice of Pauling, has created considerable excitement. The ability to manipulate spins using magnetic fields gives a unique advantage over regular ice in these systems, and has been used to study the recovery of entropy. Predicted magnetization plateaus have been observed, testing the underlying model consisting of a competition between short-ranged super exchange, and long-ranged dipolar interactions between spins. I discuss other compounds that are possibly spin ice like: Ho2Ti2O7, and the two stannates Ho2Sn2O7, Dy2Sn2O7.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||spin ice;zero-point entropy;ice rule;DTO.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||05 Nov 2009 07:38|
|Last Modified:||19 Sep 2010 04:56|
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