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Titolo:
Pressure dependence of the crystal structure of CuGeO3 to 6.2 GPa by neutron diffraction
Autore:
Braden, M; Buchner, B; Klotz, S; Marshall, WG; Behruzi, M; Heger, G;
Indirizzi:
Forschungszentrum Karlsruhe, INFP, D-76021 Karlsruhe, Germany Forschungszentrum Karlsruhe Karlsruhe Germany D-76021 Karlsruhe, Germany Ctr Etud Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France Ctr Etud Saclay Gif Sur Yvette France F-91191 191 Gif Sur Yvette, France Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany Univ Cologne CologneGermany D-50937 st Phys 2, D-50937 Cologne, Germany Univ Paris 06, CNRS URA 782, F-75252 Paris, France Univ Paris 06 Paris France F-75252 , CNRS URA 782, F-75252 Paris, France Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England Rutherford Appleton Lab Didcot Oxon England OX11 0QX 1 0QX, Oxon, England Rhein Westfal TH Aachen, Inst Kristallog, D-52056 Aachen, Germany Rhein Westfal TH Aachen Aachen Germany D-52056 , D-52056 Aachen, Germany
Titolo Testata:
PHYSICAL REVIEW B-CONDENSED MATTER
fascicolo: 13, volume: 60, anno: 1999,
pagine: 9616 - 9622
SICI:
0163-1829(19991001)60:13<9616:PDOTCS>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIN-PEIERLS TRANSITION; COMPOUND CUGEO3; PHASE-DIAGRAM; MAGNETIC-SUSCEPTIBILITY; CUPRATE CUGEO3; STATE; CUGE1-XSIXO3; EXCITATIONS; TEMPERATURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Braden, M Forschungszentrum Karlsruhe, INFP, Postfach 3640, D-76021 Karlsruhe, Germany Forschungszentrum Karlsruhe Postfach 3640 Karlsruhe Germany D-76021
Citazione:
M. Braden et al., "Pressure dependence of the crystal structure of CuGeO3 to 6.2 GPa by neutron diffraction", PHYS REV B, 60(13), 1999, pp. 9616-9622

Abstract

The structure of the spin-Peierls compound CuGeO3 has been analyzed by time-of-flight neutron powder diffraction as a function of external pressure. The structural changes allow us to explain the strong pressure dependence of the magnetic susceptibility most likely related to the pronounced pressure-induced increase of the spin-Peierls transition temperature. The structural changes induced by Si substitution are found to be opposite to those observed upon applying external pressure.

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Documento generato il 16/07/20 alle ore 05:26:30