Coalescence of the Fermi-surface-related diffuse intensity peaks in disordered alloys

Дата и время публикации : 1998-03-06T17:09:52Z

Авторы публикации и институты :
Igor Tsatskis (University of Cambridge)

Ссылка на журнал-издание: Phil. Mag. Lett. 78, No. 5, 403-410 (1998)
Коментарии к cтатье: 6 pages, 3 EPS figures, RevTeX, submitted to Philosophical Magazine Letters
Первичная категория: cond-mat.stat-mech

Все категории : cond-mat.stat-mech, cond-mat.mtrl-sci

Краткий обзор статьи: The possibility of disappearance of the diffuse-intensity peak splitting induced by the Fermi surface (i.e., of coalescence of the intensity maxima) with decreasing temperature is predicted. The underlying mechanism is the compensation of the reciprocal-space curvatures of the self-energy and the interaction. The theory also describes similar results obtained earlier for two low-dimensional models with competing interactions. The coalescence is compared with the recently observed "thermal" splitting in Pt-V which can be explained in the same way.

Category: Physics