Document Type

Article

Publication Date

7-24-2002

Journal or Book Title

Physical Review B

Volume

66

First Page

1

Last Page

3

DOI

10.1103/PhysRevB.66.012106

Abstract

The room-temperature microstructure of the giant magnetocaloric material Gd5Si2Ge2 is investigated using transmission electron microscopy and selected area diffraction. Nonmerohedral twinning is identified and its twin law, which relates one twin component to the other, is revealed. Based on selected area diffraction pattern data, we build a structural model for nonmerohedral twinning and explain its origin in terms of the irregular shear movement of two-dimensional ∞2[Gd5(Si2Ge2)] slabs held together by (Si,Ge) dimers.

Comments

This article is from Physical Review B 66 (2002): 1-3, doi: 10.1103/PhysRevB.66.012106. Posted with permission.

Copyright Owner

The American Physical Society

Language

en

File Format

application/pdf

Included in

Metallurgy Commons

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