# Density wave theory of freezing and of interfaces

Ramakrishnan, TV and Sengupta, S (1993) Density wave theory of freezing and of interfaces. In: Indo-US workshop on Interfaces, 1993, pp. 33-49.

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## Abstract

A relatively new approach is outlined for a number of phenomena in which the crystalline solid undergoes large local and global deformations. The basic variable is the spatially varying d. $\rho(\vec{r})$; the free energy of the system is expressed as a function of $\rho(\vec{r})$. The approach is placed in perspective, and is illustrated by showing how melting, the solid-liquid interface, the strained solid, and dislocations can be described as specific d. variations. Three applications are then discussed in some detail, namely the liquid-solid transition, fcc-bcc relative stability, and the fcc-bcc interface. The fcc-bcc interface is only two or three lattice consists wide and has a low interfacial energy of about 0.05 $J/m^2$.

Item Type: Conference Paper Division of Physical & Mathematical Sciences > Physics 04 Jul 2008 27 Aug 2008 13:29 http://eprints.iisc.ernet.in/id/eprint/14519