Onset detection of solid-state phase transition in estrogen-like chemical via terahertz transmission spectroscopy

College

College of Science

Department/Unit

Chemistry

Document Type

Article

Source Title

Applied Physics Letters

Volume

85

Issue

17

First Page

3914

Last Page

3916

Publication Date

10-25-2004

Abstract

Solid-state phase transition onset in an endocrine-disrupting estrogen-like chemical (1,4-naphthol) is detected using terahertz transmission spectroscopy. The appearance of two absorption peaks and the sudden upsurge of terahertz-radiation power at 210 K indicate the onset of the solid-state phase transition. Differential scanning microscopy reveals a first-order phase transition at around 240 K while temperature-dependent x-ray diffraction analysis shows the occurrence of such phenomenon also at around 240 K. This demonstrates the sensitivity of the terahertz spectroscopic technique to phase transition since it provides a signal before such phenomenon actually occurs. © 2004 American Institute of Physics.

html

Digitial Object Identifier (DOI)

10.1063/1.1812366

Disciplines

Atomic, Molecular and Optical Physics

Keywords

Submillimeter waves; Phase transformations (Statistical physics)

Upload File

wf_no

This document is currently not available here.

Share

COinS