Direct observation of R...R distances in rare-earth (R) phosphate glasses by magnetic difference neutron diffraction

Jacqueline M. Cole; Alex C. Hannon; Richard A. Martin; Robert J. Newport

doi:10.1103/PhysRevB.73.104210

Direct observation of R...R distances in rare-earth (R) phosphate glasses by magnetic difference neutron diffraction

Jacqueline M. Cole
, Alex C. Hannon
, Richard A. Martin
, Robert J. Newport

School of Biosciences

University of Cambridge
Rutherford Appleton Laboratory
University of Bath
University of Kent

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

25 Citations (Scopus)

39 Downloads (Pure)

Abstract

A magnetic difference neutron diffraction study of a rare-earth (Tb) phosphate glass has revealed exclusively the Tb...Tb distances. The difference between data taken with and without an applied magnetic field of 4 T shows Tb...Tb pairwise atomic correlations at 3.9 and 6.4 A, respectively, with relative coordination numbers of 1:14. The first distance arises when two Tb3⁺ ions share a common oxygen neighbor, and indicates a clustering of rare-earth ions. The second distance arises when two Tb3⁺ ions are coordinated to different oxygens in the same PO₄ group, in a near-linear arrangement.

Original language	English
Article number	104210
Number of pages	5
Journal	Physical Review B
Volume	73
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.73.104210
Publication status	Published - 30 Mar 2006

Bibliographical note

©2006 American Physical Society. Direct observation of R…R distances in rare-earth (R) phosphate glasses by magnetic difference neutron diffraction. Jacqueline M. Cole, Alex C. Hannon, Richard A. Martin, and Robert J. Newport. Phys. Rev. B 73, 104210 – Published 30 March 2006

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10.1103/PhysRevB.73.104210

Direct observation of R...R distances in rare-earth
©2006 American Physical Society. Direct observation of R…R distances in rare-earth (R) phosphate glasses by magnetic difference neutron diffraction. Jacqueline M. Cole, Alex C. Hannon, Richard A. Martin, and Robert J. Newport. Phys. Rev. B 73, 104210 – Published 30 March 2006
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title = "Direct observation of R...R distances in rare-earth (R) phosphate glasses by magnetic difference neutron diffraction",

abstract = "A magnetic difference neutron diffraction study of a rare-earth (Tb) phosphate glass has revealed exclusively the Tb...Tb distances. The difference between data taken with and without an applied magnetic field of 4 T shows Tb...Tb pairwise atomic correlations at 3.9 and 6.4 A, respectively, with relative coordination numbers of 1:14. The first distance arises when two Tb3+ ions share a common oxygen neighbor, and indicates a clustering of rare-earth ions. The second distance arises when two Tb3+ ions are coordinated to different oxygens in the same PO4 group, in a near-linear arrangement.",

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AB - A magnetic difference neutron diffraction study of a rare-earth (Tb) phosphate glass has revealed exclusively the Tb...Tb distances. The difference between data taken with and without an applied magnetic field of 4 T shows Tb...Tb pairwise atomic correlations at 3.9 and 6.4 A, respectively, with relative coordination numbers of 1:14. The first distance arises when two Tb3+ ions share a common oxygen neighbor, and indicates a clustering of rare-earth ions. The second distance arises when two Tb3+ ions are coordinated to different oxygens in the same PO4 group, in a near-linear arrangement.

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ER -

Direct observation of R...R distances in rare-earth (R) phosphate glasses by magnetic difference neutron diffraction

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