EXAFS and XRD studies with subpicometer accuracy: The case of ReO 3

Juris Purans; Giuseppe Dalba; Paolo Fornasini; Alexei Kuzmin; Simone De Panfilis; Francesco Rocca

doi:10.1063/1.2644546

EXAFS and XRD studies with subpicometer accuracy: The case of ReO ₃

Juris Purans^*
, Giuseppe Dalba
, Paolo Fornasini
, Alexei Kuzmin
, Simone De Panfilis
, Francesco Rocca

^*Šī darba korespondējošais autors

EXAFS spektroskopijas laboratorija, Cietvielu fizikas institūts

Pētījuma izpildes rezultāts: Nodaļa grāmatā/enciklopēdijā/konferences krājumā › Konferences zinātniskais raksts › Pētniecība › koleģiāli recenzēts

12 Atsauces (Scopus)

Kopsavilkums

EXAFS has been measured on ReO₃ from 30 to 600 K; XRD has been contemporarily measured above 300 K. In this way, it has been possible to compare the expansion of the lattice parameter (XRD) and of the bond lengths (EXAFS), measured at the same time. EXAFS was interpreted by the cumulant approach, using ReO₃ measured at low temperature as reference. According to our results, ReO₃ shows a complicated behavior of thermal expansion: (i) ultra low or negative expansion below 100 K, (ii) moderate positive expansion above 150 K up to 500 K, (iii) negative expansion from 500K. up to the decomposition temperature. The EXAFS parallel and perpendicular MSRD (mean square relative displacements) have been calculated for the 1st and 4th shells. An unexpected result is that the perpendicular MSRD of the first coordination shell has a weak temperature dependence.

Oriģinālvaloda	Angļu
Rīkotāja publikācijas nosaukums	X-RAY ABSORPTION FINE STRUCTURE - XAFS13
Rīkotāja publikācijas apakšnosaukums	13th International Conference
Lapas	422-424
Lapu skaits	3
DOIs	https://doi.org/10.1063/1.2644546
Publikācijas statuss	Publicēts - 2007
Pasākums	X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference - Stanford, CA, Amerikas Savienotās Valstis Ilgums: 9 jūl. 2006 → 14 jūl. 2006

Publikāciju sērijas

Nosaukums	AIP Conference Proceedings
Sējums	882
ISSN (Drukātā versija)	0094-243X
ISSN (Elektroniskā versija)	1551-7616

Konference

Konference	X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference
Valsts/Teritorija	Amerikas Savienotās Valstis
Pilsēta	Stanford, CA
Periods	9/07/06 → 14/07/06

Piekļuve Dokumentiem

10.1063/1.2644546

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@inproceedings{82914656115d4090a6ba6140712e10cf,

title = "EXAFS and XRD studies with subpicometer accuracy: The case of ReO 3",

abstract = "EXAFS has been measured on ReO3 from 30 to 600 K; XRD has been contemporarily measured above 300 K. In this way, it has been possible to compare the expansion of the lattice parameter (XRD) and of the bond lengths (EXAFS), measured at the same time. EXAFS was interpreted by the cumulant approach, using ReO3 measured at low temperature as reference. According to our results, ReO3 shows a complicated behavior of thermal expansion: (i) ultra low or negative expansion below 100 K, (ii) moderate positive expansion above 150 K up to 500 K, (iii) negative expansion from 500K. up to the decomposition temperature. The EXAFS parallel and perpendicular MSRD (mean square relative displacements) have been calculated for the 1st and 4th shells. An unexpected result is that the perpendicular MSRD of the first coordination shell has a weak temperature dependence.",

keywords = "Cumulants, EXAFS, Re0, Thermal expansion, XRD",

author = "Juris Purans and Giuseppe Dalba and Paolo Fornasini and Alexei Kuzmin and \{De Panfilis\}, Simone and Francesco Rocca",

year = "2007",

doi = "10.1063/1.2644546",

language = "English",

isbn = "0735403848",

series = "AIP Conference Proceedings",

pages = "422--424",

booktitle = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13",

note = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference ; Conference date: 09-07-2006 Through 14-07-2006",

}

Purans, J, Dalba, G, Fornasini, P, Kuzmin, A, De Panfilis, S & Rocca, F 2007, EXAFS and XRD studies with subpicometer accuracy: The case of ReO ₃. (kur) X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference. AIP Conference Proceedings, sēj. 882, lpp. 422-424, X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference, Stanford, CA, Amerikas Savienotās Valstis, 9/07/06. https://doi.org/10.1063/1.2644546

EXAFS and XRD studies with subpicometer accuracy: The case of ReO ₃. / Purans, Juris; Dalba, Giuseppe; Fornasini, Paolo u.c.
X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference. 2007. lpp. 422-424 (AIP Conference Proceedings; Sēj. 882).

Pētījuma izpildes rezultāts: Nodaļa grāmatā/enciklopēdijā/konferences krājumā › Konferences zinātniskais raksts › Pētniecība › koleģiāli recenzēts

TY - GEN

T1 - EXAFS and XRD studies with subpicometer accuracy

T2 - X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference

AU - Purans, Juris

AU - Dalba, Giuseppe

AU - Fornasini, Paolo

AU - Kuzmin, Alexei

AU - De Panfilis, Simone

AU - Rocca, Francesco

PY - 2007

Y1 - 2007

N2 - EXAFS has been measured on ReO3 from 30 to 600 K; XRD has been contemporarily measured above 300 K. In this way, it has been possible to compare the expansion of the lattice parameter (XRD) and of the bond lengths (EXAFS), measured at the same time. EXAFS was interpreted by the cumulant approach, using ReO3 measured at low temperature as reference. According to our results, ReO3 shows a complicated behavior of thermal expansion: (i) ultra low or negative expansion below 100 K, (ii) moderate positive expansion above 150 K up to 500 K, (iii) negative expansion from 500K. up to the decomposition temperature. The EXAFS parallel and perpendicular MSRD (mean square relative displacements) have been calculated for the 1st and 4th shells. An unexpected result is that the perpendicular MSRD of the first coordination shell has a weak temperature dependence.

AB - EXAFS has been measured on ReO3 from 30 to 600 K; XRD has been contemporarily measured above 300 K. In this way, it has been possible to compare the expansion of the lattice parameter (XRD) and of the bond lengths (EXAFS), measured at the same time. EXAFS was interpreted by the cumulant approach, using ReO3 measured at low temperature as reference. According to our results, ReO3 shows a complicated behavior of thermal expansion: (i) ultra low or negative expansion below 100 K, (ii) moderate positive expansion above 150 K up to 500 K, (iii) negative expansion from 500K. up to the decomposition temperature. The EXAFS parallel and perpendicular MSRD (mean square relative displacements) have been calculated for the 1st and 4th shells. An unexpected result is that the perpendicular MSRD of the first coordination shell has a weak temperature dependence.

KW - Cumulants

KW - EXAFS

KW - Re0

KW - Thermal expansion

KW - XRD

UR - https://www.scopus.com/pages/publications/33947383023

U2 - 10.1063/1.2644546

DO - 10.1063/1.2644546

M3 - Conference paper

AN - SCOPUS:33947383023

SN - 0735403848

SN - 9780735403840

T3 - AIP Conference Proceedings

SP - 422

EP - 424

BT - X-RAY ABSORPTION FINE STRUCTURE - XAFS13

Y2 - 9 July 2006 through 14 July 2006

ER -