Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe 2 Spin Glass
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Engineering topics
Murphy, Ryan A.
Publications and source records attributed to Murphy, Ryan A..
Exchange Bias in a Layered Metal–Organic Topological Spin Glass
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
A hard permanent magnet through molecular design
Permanent magnets constructed from metal ions and organic linkers using molecular design principles could bring transformative advances in areas such as energy conversion, transportation, and information storage. This comment highlights the recent discovery of a metal-organic magnet ordering at 242 °C, and discusses future research directions and possible applications involving such materials.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Exchange bias due to coupling between coexisting antiferromagnetic and spin-glass orders
Exchange bias is a property of widespread technological utility, but its underlying mechanism remains elusive, in part because it is rooted in the interaction of coexisting order parameters in the presence of complex magnetic disorder. In this study we show that a giant exchange bias housed within a spin-glass phase arises in a disordered antiferromagnet. The magnitude and robustness of the exchange bias emerges from a convolution of two energetic landscapes, namely the highly degenerate landscape of the spin glass biased by the sublattice spin configuration of the antiferromagnet. The former provides a source of uncompensated moment, whereas the latter provides a mechanism for its pinning, which leads to the exchange bias. Tuning the relative strengths of the spin-glass and antiferromagnetic order parameters reveals a principle for tailoring the exchange bias, with potential applications to spintronic technologies.
36 MATERIALS SCIENCE↗