Tunneling of Magnetization in High-Spin Molecular Magnets

9729339亨德里克森这项由加州大学圣迭戈分校的女物理学家和加州大学圣地亚哥分校的化学家开展的新合作，将专注于合成和研究由大量相同的高自旋分子簇组成的晶体的磁性，如醋酸锰12。它们的磁性双稳态使这些材料成为高密度信息存储元件的有力候选者。我们最近展示的双势垒势中的自旋隧道效应使它们从根本上变得有趣，并提供了将这类材料用作量子计算元素的可能性。我们研究的目的是合成新的分子晶体，以优化其应用性能，并更好地了解它们的行为。CUNY的一位女物理学家和加州大学圣地亚哥分校的一位化学家的这项新合作将专注于合成和研究由大量相同的磁性亚单位组成的分子晶体，如醋酸锰。它们的磁性双稳态使这些材料成为高密度信息存储元件的有力候选者。它们在低温下的量子力学性质很有趣，这是因为根本原因，而且它们还提供了将它们用于“量子计算机”的可能性，“量子计算机”需要元素同时处于“是”和“否”状态。我们研究的目的是合成新的分子晶体，以优化其应用性能，并更好地了解它们的行为。***

w:\awards\awards97\9704309.doc 9729339 Hendrickson This new collaboration between a woman physicist at CUNY and a chemist at UC San Diego will focus on the synthesis and study of the magnetic properties of crystals composed of a large number of identical high-spin molecular clusters, such as Mn12 acetate. Their magnetic bistability makes such materials strong candidates as elements for high- density storage of information. The spin-tunneling in a double well potential that we have recently demonstrated makes them interesting from a fundamental standpoint, and offers the possibility that materials of this class could be used as elements for quantum computation. The aim of our studies is to synthesize new molecular crystals that will optimize properties for applications, and to gain a better understanding of their behavior. %%% This new collaboration between a woman physicist at CUNY and a chemist at UC San Diego will focus on the synthesis and study of molecular crystals composed of a large number of identical magnetic subunits, such as Mn12 acetate. Their magnetic bistability makes such materials strong candidates as elements for high-density storage of information. Their quantum mechanical properties at low temperatures are interesting for fundamental reasons, and also offer the possibility that they can be used in "quantum computers" which require elements that are simultaneously in a "yes" and "no" state. The aim of our studies is to synthesize new molecular crystals that will optimize properties for applications, and to gain a better understanding of their behavior. ***