Evidence of metal-insulating phase transition from Raman scattering in (TaSe4)2I

I. Ohana; D. Schmeltzer; D. Shaltiel; Y. Yacoby; A. Mustachi

doi:10.1016/0038-1098(85)90602-7

Evidence of metal-insulating phase transition from Raman scattering in (TaSe₄)₂I

I. Ohana^*, D. Schmeltzer, D. Shaltiel, Y. Yacoby, A. Mustachi

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

We have performed Raman Scattering experiments on the quasi one dimensional C.D.W. compound (TaSe₄)₂I which has a metal-insulating phase transition at 263 K. We observe two pronounced lines at 272 cm^-1 and at 182 cm^-1. Below the phase transition the second line shifts to higher frequencies and we find that at 30 K the frequency is 191 cm^-1. In addition we observe that at this temperature the relative intensity of this line decreases and the width increases.

Original language	English
Pages (from-to)	747-748
Number of pages	2
Journal	Solid State Communications
Volume	54
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(85)90602-7
State	Published - May 1985

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title = "Evidence of metal-insulating phase transition from Raman scattering in (TaSe4)2I",

abstract = "We have performed Raman Scattering experiments on the quasi one dimensional C.D.W. compound (TaSe4)2I which has a metal-insulating phase transition at 263 K. We observe two pronounced lines at 272 cm-1 and at 182 cm-1. Below the phase transition the second line shifts to higher frequencies and we find that at 30 K the frequency is 191 cm-1. In addition we observe that at this temperature the relative intensity of this line decreases and the width increases.",

author = "I. Ohana and D. Schmeltzer and D. Shaltiel and Y. Yacoby and A. Mustachi",

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AU - Ohana, I.

AU - Schmeltzer, D.

AU - Shaltiel, D.

AU - Yacoby, Y.

AU - Mustachi, A.

PY - 1985/5

Y1 - 1985/5

N2 - We have performed Raman Scattering experiments on the quasi one dimensional C.D.W. compound (TaSe4)2I which has a metal-insulating phase transition at 263 K. We observe two pronounced lines at 272 cm-1 and at 182 cm-1. Below the phase transition the second line shifts to higher frequencies and we find that at 30 K the frequency is 191 cm-1. In addition we observe that at this temperature the relative intensity of this line decreases and the width increases.

AB - We have performed Raman Scattering experiments on the quasi one dimensional C.D.W. compound (TaSe4)2I which has a metal-insulating phase transition at 263 K. We observe two pronounced lines at 272 cm-1 and at 182 cm-1. Below the phase transition the second line shifts to higher frequencies and we find that at 30 K the frequency is 191 cm-1. In addition we observe that at this temperature the relative intensity of this line decreases and the width increases.

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Evidence of metal-insulating phase transition from Raman scattering in (TaSe₄)₂I

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