Order disorder elements in antiferrodistortive phase transitions

B. Rechav; Y. Yacoby; E. A. Stern; J. J. Rehr; M. Newville

doi:10.1016/0921-4526(94)00850-u

Order disorder elements in antiferrodistortive phase transitions

B. Rechav, Y. Yacoby, E. A. Stern, J. J. Rehr, M. Newville

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

6 Scopus citations

Abstract

Detailed analysis of XAFS spectra of the antiferrodistortive crystals K_1-xNa_xTaO₃ show that the local rotation angles of the oxygen octahedra in crystals with x > 0.6 are non-zero and large, hundreds of degrees above the transition temperatures to the cubic phase.

Original language	English
Pages (from-to)	325-326
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	208-209
Issue number	C
DOIs	https://doi.org/10.1016/0921-4526(94)00850-u
State	Published - 1 Mar 1995
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported in part by DOE Grant No. DE-FG06-90ER45425 and BSF Grant No. 92-00348. Beamline Xll-A is supported by DOE Grant No. DE-FG05-89ER45384.

Funding

This work was supported in part by DOE Grant No. DE-FG06-90ER45425 and BSF Grant No. 92-00348. Beamline Xll-A is supported by DOE Grant No. DE-FG05-89ER45384.

Funders	Funder number
U.S. Department of Energy	DE-FG06-90ER45425
Bloom's Syndrome Foundation	92-00348

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title = "Order disorder elements in antiferrodistortive phase transitions",

abstract = "Detailed analysis of XAFS spectra of the antiferrodistortive crystals K1-xNaxTaO3 show that the local rotation angles of the oxygen octahedra in crystals with x > 0.6 are non-zero and large, hundreds of degrees above the transition temperatures to the cubic phase.",

author = "B. Rechav and Y. Yacoby and Stern, {E. A.} and Rehr, {J. J.} and M. Newville",

note = "Funding Information: This work was supported in part by DOE Grant No. DE-FG06-90ER45425 and BSF Grant No. 92-00348. Beamline Xll-A is supported by DOE Grant No. DE-FG05-89ER45384.",

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doi = "10.1016/0921-4526(94)00850-u",

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AU - Rechav, B.

AU - Yacoby, Y.

AU - Stern, E. A.

AU - Rehr, J. J.

AU - Newville, M.

N1 - Funding Information: This work was supported in part by DOE Grant No. DE-FG06-90ER45425 and BSF Grant No. 92-00348. Beamline Xll-A is supported by DOE Grant No. DE-FG05-89ER45384.

PY - 1995/3/1

Y1 - 1995/3/1

N2 - Detailed analysis of XAFS spectra of the antiferrodistortive crystals K1-xNaxTaO3 show that the local rotation angles of the oxygen octahedra in crystals with x > 0.6 are non-zero and large, hundreds of degrees above the transition temperatures to the cubic phase.

AB - Detailed analysis of XAFS spectra of the antiferrodistortive crystals K1-xNaxTaO3 show that the local rotation angles of the oxygen octahedra in crystals with x > 0.6 are non-zero and large, hundreds of degrees above the transition temperatures to the cubic phase.

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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ER -

Order disorder elements in antiferrodistortive phase transitions

Abstract

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