Formation of High Temperature Superconducting Balls

这个个人研究者奖是为了研究一个新发现的现象，超导颗粒球。当一个强电场被施加到液氮和高温超导粒子的悬浮液中时，颗粒状粒子在电极之间快速移动，并在毫秒内将自己结合在一起形成宏观球。这一现象揭示了超导体的一个新性质：电场诱导的表面能。目前的初步解释涉及这种表面能的ab-平面之间的约瑟夫森耦合能量的损失，由于在颗粒上的感应表面电荷。物理模型需要广泛的开发。这一新现象也与一个长期悬而未决的问题有关：超导体在静电场中的行为。该现象的基础科学对于超导性的理解和发展非常重要。这项研究也可能导致一种新的方法来生产超导薄膜。 该项目为本科生、研究生和博士后研究员提供了极好的培训机会，使他们为未来的职业生涯做好准备。这个个人研究者奖是针对最近发现的超导新现象的研究项目，即在强电场中形成超导颗粒球。 目前的理论解释认为，这种现象的本质是超导的一种新性质。这一发现也与一个长期悬而未决的重要问题有关：超导体在静电场中的行为。该现象的基础科学对于超导性的理解和发展非常重要。这项研究也可能导致一种新的方法来生产超导薄膜。该项目涉及本科生，研究生和博士后研究员，他们在物理学前沿的培训为他们未来的科学生涯做好了准备。 ***

This individual investigator award is for a project to investigate a newly discovered phenomenon, superconducting granular balls. When a strong electric field is applied to a suspension of liquid nitrogen and high temperature superconducting particles, the granular particles quickly move between the electrodes and bind themselves together to form macroscopic balls in milliseconds. The phenomenon shows a new property of superconductor: electric field induced surface energy. The current preliminary explanation relates this surface energy to a loss of Joshphson coupling energy between the ab-planes due to the induced surface charge on the particles. The physical model requires extensive development. The new phenomenon is also related to a long-standing unresolved issue: the behavior of superconductors in a static electric field. The basic science of the phenomenon is important to the understanding and development of superconductivity. The research may also lead to a new method to produce superconducting films. The project offers excellent opportunity for the training of undergraduate students, graduate students, and postdoctoral fellows in techniques that will prepare them for future careers. %%%This individual investigator award is for a project directed towards the study of a new phenomenon of superconductivity discovered recently, the formation of superconducting granular balls in a strong electric field. The current theoretical explanation concludes that the nature of the phenomenon is a new property of superconductivity. The discovery is also related to a long-standing unresolved important issue: the behavior of superconductors in a static electric field. The basic science of the phenomenon is important to the understanding and development of superconductivity. The research may also lead to a new method to produce superconducting films. The project involves undergraduate students, graduate students, and postdoctoral fellow, whose training in a forefront of physics prepares them for the future career in science. ***