Spin-Ice and Other Frustrated Magnets on the Pyrochlore Lattice

Details Spin-Ice and Other Frustrated Magnets on the Pyrochlore Lattice Spin-Ice and Other Frustrated Magnets on the Pyrochlore Lattice

2002-10-10

arxiv.org/abs/cond-mat/0210230v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, Invited Contribution for Low Temperature Conference LT23, August 20-27, Hiroshima JAPAN, to be published in Physica B

Scientific paper

10.1016/S0921-4526(02)02225-1

The recent identification of the dysprosium titanate compound $Dy_2 Ti_2 O_7$ 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: $Ho_2 Ti_2 O_7$, and the two stannates $Ho_2 Sn_2 O_7$, $Dy_2 Sn_2 O_7$.

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