Network structure of electron states in superconducting cuprates systems and its binding energy
首发时间:2012-11-30
Abstract:A model of electron state structure of superconducting cuprates system is presented, in which network of criss-cross loops is identified and substantial tolerance to requirements on binding energy establishment is generated. Binding energy is not established and maintained in single pair of electrons. In fact, no edge in the network can always keep its binding energy, but every state/vertex in the network is always kept in a binding energy state; when a first edge loses its binding energy, a second edge connecting to the upper vertex of the first edge establishes its binding energy, and the overall binding energy of all edges in the network remains constant. Thus, electron interactions mediated by respective lattice modes enhance, rather than compete with, one another; the more edges are included in the network, the more likely binding energy is established/preserved. Significance of phonon depletion at nodal region in the model is discussed.
keywords: superconductivity physics binding energy electron states
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超导铜氧化物系的电子态的网络结构及结合能
摘要:铜氧化物超导体系中的电子态的一种结构模型,其中存在由多个交叉环路构成的网络,并产生了对电子态建立条件的显著容差。结合能不在单一电子对中建立和保持;该网络中的每条边都不会始终保持其结合能,但该网络中的每个态/顶点都始终被保持在结合能态;当一条边失去其结合能时,与该边的上顶点相连的另一条边则建立起其结合能,而该网络中的所有边的总结合能保持不变。这样,不同格波模所中介的电子作用是彼此促进而非竞争的关系;该网络中包括的边越多,结合能就越容易建立和保持。还对本模型中的节点区声子耗尽的涵义进行了讨论。
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