The free energy of condensed matter under stress

被引：15

作者：

Bottomley, DJ

机构：

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1997年 / 36卷 / 11A期

关键词：

Gibbs free energy; Helmholtz free energy; stress; strain; condensed matter; melting; InAs; InP; InSb; GaAs;

D O I：

10.1143/JJAP.36.L1464

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The currently accepted form of the free energy of condensed matter under stress, derived using the Helmholtz free energy, is disproved. Recognizing that the Gibbs free energy is the correct function of state, a new formula for the free energy-density E which is linear-rather than quadratic-in the strain is derived. For isotropic and cubic media, the formula is E = -(c(11) + 2C(12))epsilon where the c(ij) are elastic stiffness constants and E is the strain. The formula is in accordance with published data.

引用

页码：L1464 / L1465

页数：2