A frustrated system is one whose symmetry precludes the possibility that every pairwise
interaction (“bond”) in the system can be satisfied at the same time. Such systems are …

Within the past 20 years or so, there has occurred an explosion of interest in the magnetic
behavior of pyrochlore oxides of the type A 2 3+ B 2 4+ O 7, where A is a rare-earth ion and …

The spin ice compounds Dy2Ti2O7 and Ho2Ti2O7 are highly unusual magnets that
epitomize a set of concepts of great interest in modern condensed matter physics: Their low …

The fluidity of water in confined geometries is relevant to processes ranging from tribology to
protein folding, and its molecular mobility in pores and slits has been extensively studied …

The experimental technique of ac susceptibility can be used as a probe of magnetic
dynamics in a wide variety of systems. Its use is restricted to the low-frequency regime and …

This review is a study of how the idea of spin ice has evolved over the years, with a focus on
the scientific questions that have come to define the subject. Since our initial discovery of …

The “spin-ice” state found in the rare-earth pyrochlore magnets Ho 2 Ti 2 O 7 and Dy 2 Ti 2 O
7 offers a beautiful realization of classical magnetostatics, complete with magnetic monopole …

Fractals—objects with noninteger dimensions—occur in manifold settings and length scales
in nature. In this work, we identify an emergent dynamical fractal in a disorder-free …

Spin ice is a magnetic analog of H2O ice that harbors dense static disorder. Dipolar
interactions between classical spins yield a frozen frustrated state with residual …

The large degeneracy of states resulting from the geometrical frustration of competing
interactions is an essential ingredient of important problems in fields as diverse as …