Surface phase transitions during martensitic transformations of single-crystal Co

被引：33

作者：

Erbudak, M ^{[1
]}

Wetli, E ^{[1
]}

Hochstrasser, M ^{[1
]}

Pescia, D ^{[1
]}

Vvedensky, DD ^{[1
]}

机构：

[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,BLACKETT LAB,LONDON SW7 2BZ,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.79.1893

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The phase transitions of close-packed surfaces that accompany the martensitic transformations between the hexagonal close-packed and face-centered cubic structures of single-crystal Co are observed in real space and in real time with secondary-electron imaging. Simultaneous measurement of the bulk resistivity is used to identify the onset of the bulk transformation. The surface transitions show a broader thermal hysteresis than that of the resistivity, indicating that the martensitic transformation is initiated in the bulk and proceeds slowly to the surface.

引用

页码：1893 / 1896

页数：4

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