1994 Aspen Winter Condensed Matter Conference, Aspen Center for Physics, Aspen, Colorado

1994 年阿斯本冬季凝聚态会议，阿斯本物理中心，科罗拉多州阿斯本

• 批准号: 9400890
• 负责人: Thomas Appelquist
• 金额: --
• 依托单位: Aspen Center For Physics
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-01-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9400890&HistoricalAwards=false
• 关键词: 1994; Aspen; Winter; Condensed; Matter

9400890 Appelquist The Condensed Matter Physics Conference for 1994 at Aspen will focus on the symmetry of the pairing states of high temperature superconductors, the doping dependence of the anomalous normal state transport and magnetic properties of the high Tc materials, and the physics of three dimensional Mott-Hubbard systems. In each of these areas exciting and controversial new experimental and theoretical results have appeared, but these results have not been critically examined or systematically related to other work. On the topic of the symmetry of the pairing state, recent experimental results of photoemission, penetration depth and Josephson tunneling will be compared with results of other techniques such as NMR, specific heat and neutron scattering. On the normal state properties the nature of the doping dependence of transport properties and the spin gap behavior of the magnetic susceptibility will be examined. The third topic of interest relates to the occurrence of metal-insulator transitions in some regions of the phase diagrams of high Tc superconductors. Certain three dimensional transition metal oxides also feature metal-insulator transitions but are not superconductors. The conference will examine this issue from a theoretical and experimental viewpoint. %%% High temperature superconductors exhibit remarkable physical properties which have potentially significant technological applications. It is the very unusual properties of these materials which offer a daunting challenge to experimental and theoretical practitioners alike. Many apparently contradictory experimental results and theories have been published. This conference is well timed to critically examine the available data and compare it to existing theory with the hope of defining future directions of investigations. ***

1994年在阿斯彭召开的凝聚态物理会议将集中讨论高温超导体配对态的对称性，高Tc材料的异常正态输运和磁性能的掺杂依赖性，以及三维莫特-哈伯德系统的物理学。在这些领域中，已经出现了令人兴奋和有争议的新的实验和理论结果，但这些结果没有经过严格的检验，也没有与其他工作系统地联系起来。在对偶态的对称性这一主题上，本文将光电发射、穿透深度和约瑟夫森隧穿的最新实验结果与核磁共振、比热和中子散射等其他技术的结果进行比较。在正态性质上，考察了掺杂对输运性质的依赖性质和磁化率的自旋间隙行为。感兴趣的第三个主题涉及高Tc超导体相图中某些区域金属绝缘体转变的发生。某些三维过渡金属氧化物也具有金属绝缘体过渡，但不是超导体。这次会议将从理论和实验的角度来研究这个问题。高温超导体表现出非凡的物理特性，具有潜在的重要技术应用。正是这些材料非常不寻常的特性给实验和理论实践者带来了巨大的挑战。许多明显矛盾的实验结果和理论已经发表。这次会议的时机很好，可以严格审查现有数据，并将其与现有理论进行比较，以期确定未来的研究方向。* * *