Lattice of positive charges

The freedom of electrons to move easily, coupled with the metals high density, led scientists to hypothesize that they were densely packed lattices of positively charged atoms immersed in a sea of freely moving valence electrons. This structure, illustrated in Figure 7.12, is accepted today. 

Metallic bonding The bonding present in metallic crystals composed of a lattice of positively charged atoms in a sea of delocalized electrons. 

The jellium model for the surface electronic structure of free-electron metals was introduced by Bardeen (1936) for a treatment of the surface potential. In the jellium model, the lattice of positively charged cores is replaced by a uniform positive charge background, which drops abruptly to zero at the... 

Electron Gas in a Lattice of Positive Charges (Bellemans de Leener) 6 85... 

Metal ions are held together by freely flowing electrons. These loose electrons form a kind of electronic fluid that flows through the lattice of positively charged ions. 

Metals. These are similar to ionic solids, since they contain a lattice of positively charged metal cations. The anions are electrons which differ from anions in salts like NaCl by being mobile. The mobility of the electrons in metals permits metal surfaces to act as very active centers for both free radical and ionic reactions. 

The purpose of the present paper is to study the properties of an electron gas moving in a lattice of positive charges at absolute zero. This picture should correspond roughly to actual metals or metalHc solutions and in principle should furnish some new insight into the cohesive properties of pure metals and into the thermodynamic properties of mixing of allo. ... 

Our idea is to proceed here along the same lines, i.e., to express the properties of an electron gas moving in a lattice of positive charges as an expansion in the interaction strength A. Thus we shall treat on the same level all electrostatic interactions between pairs of electrons, between pairs of lattice charges and between the electrons and the lattice. Hence we shall make a consistent... 

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