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Chromium oxyselenide solid solutions from the atmospheric pressure chemical vapour deposition of chromyl chloride and diethylselenide

Chromium oxyselenide solid solutions from the atmospheric pressure chemical vapour deposition of chromyl chloride and diethylselenide
Chromium oxyselenide solid solutions from the atmospheric pressure chemical vapour deposition of chromyl chloride and diethylselenide
A new chromium oxyselenide solid-solution series Cr(2)O(3-x)Se(x) (x = 0, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.7, 1.5, 2.15) was formed by the atmospheric pressure chemical vapour deposition of chromyl chloride and diethylselenide at 600 degrees C. The level of selenium incorporation was directly related to the gas-phase molar flows of reagents. There was a crossover in structure type adopted by the chromium oxyselenide with selenium incorporation, at x = 0-0.2 the solid solution crystallises in the Cr(2)O(3) structure type, at x = 0.3-2.15 it adopts the Cr(2)Se(3) structure type. All of the chromium oxyselenides were antiferromagnets. They showed a variation in Neel temperature with composition with a minimum temperature of 11 K observed for x = 0.7.
1667-1673
Boscher, Nicolas D.
2df440ba-0b73-4007-aa06-0f252ec0adce
Carmalt, Claire J.
eb7d35e3-cde5-46c7-a6ee-5951c374923c
Hyett, Geoffrey
4f292fc9-2198-4b18-99b9-3c74e7dfed8d
Garcia Prieto, A.
ff69180f-1979-402c-ba9b-139d315a8d8e
Pankhurst, Quentin A.
e8ca95c3-fea6-47ad-ae3c-a1d197bca7a4
Parkin, Ivan P.
7f95b9c4-1f9d-441c-8d43-ac8ea2554b85
Boscher, Nicolas D.
2df440ba-0b73-4007-aa06-0f252ec0adce
Carmalt, Claire J.
eb7d35e3-cde5-46c7-a6ee-5951c374923c
Hyett, Geoffrey
4f292fc9-2198-4b18-99b9-3c74e7dfed8d
Garcia Prieto, A.
ff69180f-1979-402c-ba9b-139d315a8d8e
Pankhurst, Quentin A.
e8ca95c3-fea6-47ad-ae3c-a1d197bca7a4
Parkin, Ivan P.
7f95b9c4-1f9d-441c-8d43-ac8ea2554b85

Boscher, Nicolas D., Carmalt, Claire J., Hyett, Geoffrey, Garcia Prieto, A., Pankhurst, Quentin A. and Parkin, Ivan P. (2008) Chromium oxyselenide solid solutions from the atmospheric pressure chemical vapour deposition of chromyl chloride and diethylselenide. Journal of Materials Chemistry, 18 (14), 1667-1673. (doi:10.1039/b718119a).

Record type: Article

Abstract

A new chromium oxyselenide solid-solution series Cr(2)O(3-x)Se(x) (x = 0, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.7, 1.5, 2.15) was formed by the atmospheric pressure chemical vapour deposition of chromyl chloride and diethylselenide at 600 degrees C. The level of selenium incorporation was directly related to the gas-phase molar flows of reagents. There was a crossover in structure type adopted by the chromium oxyselenide with selenium incorporation, at x = 0-0.2 the solid solution crystallises in the Cr(2)O(3) structure type, at x = 0.3-2.15 it adopts the Cr(2)Se(3) structure type. All of the chromium oxyselenides were antiferromagnets. They showed a variation in Neel temperature with composition with a minimum temperature of 11 K observed for x = 0.7.

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More information

e-pub ahead of print date: 21 February 2008
Published date: 2008
Organisations: Organic Chemistry: Synthesis, Catalysis and Flow

Identifiers

Local EPrints ID: 347011
URI: https://eprints.soton.ac.uk/id/eprint/347011
PURE UUID: e5a03873-5b38-4b1d-9417-b5fbb399ab3c
ORCID for Geoffrey Hyett: ORCID iD orcid.org/0000-0001-9302-9723

Catalogue record

Date deposited: 17 Jan 2013 14:34
Last modified: 14 Jul 2018 00:30

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