start-ver=1.4
cd-journal=joma
no-vol=329-333
cd-vols=
no-issue=
article-no=
start-page=713
end-page=714
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=20035
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=X-ray study of modulated structures of beta-Cu<sub>x</sub>V<sub>2</sub>O<sub>5</sub>
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=<p>High resolution X-ray study reveals the wave vector change in the modulated structure of the quasi-one dimensional compound beta'-Cu vanadium bronze. Structural modulation of the reduced wave vector q<sub>0</sub> = (0, 0.305, 0) emerges below 220 K in beta'-Cu<sub>0.29</sub>V<sub>2</sub>O<sub>5</sub> . For beta'-Cu<sub>0.39</sub>V<sub>2</sub>O<sub>5</sub>, not the single q modulation but two kinds of modulations were observed. A three-fold superlattice structure with q1 = (0, 0.333, 0) appears below 210 K. An incommensurate modulated structure with q2 = (0, 0.26 ? 0.29, 0) coexists below 175 K, whose satellite intensity and b* component Qb have temperature and passing-time dependencies between 140 K and 175 K. The competition between q<sub>1</sub> and q<sub>2</sub> modulations was also observed. It seems that the q<sub>2</sub> is deeply related to the physical property change between 140 K and 180 K confirmed by the decrease in the magnetic susceptibility and the increase in the resistivity.</p>

en-copyright=
kn-copyright=

en-aut-name=NagaoNobuaki
en-aut-sei=Nagao
en-aut-mei=Nobuaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=NogamiYoshio
en-aut-sei=Nogami
en-aut-mei=Yoshio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=OshimaKokichi
en-aut-sei=Oshima
en-aut-mei=Kokichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=YamadaHiroyuki
en-aut-sei=Yamada
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=UedaYutaka
en-aut-sei=Ueda
en-aut-mei=Yutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Okayama University

affil-num=2
en-affil=
kn-affil=Okayama University

affil-num=3
en-affil=
kn-affil=Okayama University

affil-num=4
en-affil=
kn-affil=University of Tokyo

affil-num=5
en-affil=
kn-affil=University of Tokyo
en-keyword=x-ray
kn-keyword=x-ray
en-keyword=modulated structures
kn-keyword=modulated structures
en-keyword=low dimensional conductor
kn-keyword=low dimensional conductor
en-keyword=vanadium bronze
kn-keyword=vanadium bronze
en-keyword=b-cuxv2o5
kn-keyword=b-cuxv2o5
END