Direct observation of discommensuration arrays in NbTe4 by means of low-temperature electron microscopy

J. Mahy; J. Van Landuyt; S. Amelinckx; Yuji Uchida; K. D. Bronsema; Sander Van Smaalen

doi:10.1103/PhysRevLett.55.1188

Direct observation of discommensuration arrays in NbTe4 by means of low-temperature electron microscopy

J. Mahy, J. Van Landuyt, S. Amelinckx, Yuji Uchida, K. D. Bronsema, Sander Van Smaalen

Research output › peer-review

Abstract

The pseudo one-dimensional compound NbTe4 exhibits a lock-in-type phase transition around 50 K. Electron microscopy reveals the occurrence of discommensurations; their evolution as a function of temperature is reported. A microstructure model is proposed in which cooperative dephasing between one-dimensional Nb-string segments generates the discommensurations. An alternative description using concepts currently applied for long-period antiphase-boundary structures provides a valid description for the phenomena observed below room temperature.

Original language	English
Pages (from-to)	1188-1191
Number of pages	4
Journal	Physical review Letters
Volume	55
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.55.1188
State	Published - 1985

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.55.1188

Cite this

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title = "Direct observation of discommensuration arrays in NbTe4 by means of low-temperature electron microscopy",

abstract = "The pseudo one-dimensional compound NbTe4 exhibits a lock-in-type phase transition around 50 K. Electron microscopy reveals the occurrence of discommensurations; their evolution as a function of temperature is reported. A microstructure model is proposed in which cooperative dephasing between one-dimensional Nb-string segments generates the discommensurations. An alternative description using concepts currently applied for long-period antiphase-boundary structures provides a valid description for the phenomena observed below room temperature.",

author = "J. Mahy and {Van Landuyt}, J. and S. Amelinckx and Yuji Uchida and Bronsema, {K. D.} and {Van Smaalen}, Sander",

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AU - Bronsema, K. D.

AU - Van Smaalen, Sander

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AB - The pseudo one-dimensional compound NbTe4 exhibits a lock-in-type phase transition around 50 K. Electron microscopy reveals the occurrence of discommensurations; their evolution as a function of temperature is reported. A microstructure model is proposed in which cooperative dephasing between one-dimensional Nb-string segments generates the discommensurations. An alternative description using concepts currently applied for long-period antiphase-boundary structures provides a valid description for the phenomena observed below room temperature.

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