Spin Frustration in 2D Kagomé Lattices: A Problem for Inorganic Synthetic Chemistry

作者：Daniel G. Nocera, Bart M. Bartlett, Daniel Grohol, Dimitris Papoutsakis, Matthew P. Shores · 发表于：Chemistry - A European Journal · 年份：2004 · DOI：10.1002/chem.200306074 · 被引用次数：140 · 研究领域：Advanced Condensed Matter Physics、Magnetic and transport properties of perovskites and related materials、Electronic and Structural Properties of Oxides

A kagomé antiferromagnet presents an ideal construct for studying the unusual physics that result from the placement of magnetically frustrated spins on a low-dimensional lattice. Jarosites are the prototype for a spin-frustrated magnetic structure, because these materials are composed exclusively of kagomé layers. Notwithstanding, jarosite-type materials have escaped precise magnetic characterization over the past three decades, because they are notoriously difficult to prepare in pure and single-crystal forms. These hurdles have been overcome with the development of redox-based hydrothermal methods. Armed with pure and crystalline materials, several perplexing issues surrounding the magnetic properties of the jarosites have been resolved, yielding a detailed and comprehensive picture of the ground-state physics of this kagomé lattice.