Abstract
The theory of forming a coherent twinning array in a parent phase is studied for a tetragonal to orthorhombic displacive transition. We find that this structure can be stabilized without the use of dislocations by a long-range interaction between the twin boundaries which is mediated via the parent phase. The dynamics of the twin boundary lattice consists of elementary excitations with surprisingly low frequency and a limiting (wave vector)1/2 dispersion.
Original language | English |
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Pages (from-to) | 1251-1254 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 59 |
Issue number | 11 |
DOIs | |
State | Published - 1 Jan 1987 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy