Physics – Condensed Matter
Scientific paper
1994-06-23
Phys. Rev. B 50 (1994), 16594
Physics
Condensed Matter
6 pages, no figures. Revtex, version 2, Materials Science Center Internal Report Number VSGD.93.9.th1
Scientific paper
10.1103/PhysRevB.50.16594
We give a general thermodynamic analyzis of the behaviour of the chemical potential of electrons in metals at a second order phase transition, including in our analysis the effect of long range Coulomb forces. It is shown, that this chemical potential can have a kink at T$_c$, both for fixed sample volume and fixed external pressure. The Coulomb term transfers the changes in chemical potential of the electrons into an experimentally observable shift of the surface potential if the sample is electrically connected to a ground potential. VSGD.93.9.th1
der Marel Dirk van
Eliashberg G. M.
Khomskii Daniel I.
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