Tunneling of Magnetization in High-Spin Molecular Magnets

高自旋分子磁体中磁化的隧道效应

• 批准号: 9729339
• 负责人: David Hendrickson
• 金额: $ 12.9万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-15 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9729339&HistoricalAwards=false
• 关键词: Tunneling; Magnetization; Spin; Molecular; Magnets

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. ***

w:\awards\awards97\9704309.doc 9729339 Hendrickson 纽约市立大学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之间的这项新合作将重点关注由大量相同的高自旋分子簇（例如醋酸锰）组成的晶体的磁性合成和研究。 它们的磁双稳态使得此类材料成为高密度信息存储元素的有力候选者。 我们最近演示的双势阱中的自旋隧道从基本角度来看使它们变得有趣，并提供了此类材料可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，以优化应用性能，并更好地了解它们的行为。 %%% 纽约市立大学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之间的这项新合作将重点关注由大量相同磁性亚基（例如 Mn12 乙酸盐）组成的分子晶体的合成和研究。 它们的磁双稳态使得此类材料成为高密度信息存储元素的有力候选者。 出于根本原因，它们在低温下的量子力学特性很有趣，并且还提供了将它们用于需要同时处于“是”和“否”状态的元素的“量子计算机”的可能性。 我们研究的目的是合成新的分子晶体，以优化应用性能，并更好地了解它们的行为。 ***