Neutron and x-ray scattering studies of the lightly doped spin-Peierls system Cu1-xCdxGeO3

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TypeArticle
Journal titleJournal Of Physics. Condensed Matter
ISSN09538984
Volume19
Issue43
Pages436222–; # of pages: 1
AbstractSingle crystals of the lightly doped spin-Peierls system Cu1[?]xCdxGeO3 have been studied using bulk susceptibility, x-ray diffraction, and inelastic neutron scattering techniques. We investigate the triplet gap in the magnetic excitation spectrum of this quasi-one-dimensional quantum antiferromagnet, and its relation to the spin-Peierls dimerization order parameter. We employ two different theoretical forms to model the inelastic neutron scattering cross section and kh''(Q,o), and show the sensitivity of the gap energy to the choice of \chi ''(\mathbf {Q}, \hbar \omega ). We find that a finite gap exists at the spin-Peierls phase transition.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Canadian Neutron Beam Centre
Peer reviewedNo
Identifier10451456
NPARC number12327868
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Record identifierb3e52efc-d3a0-4509-ab0b-1d7b9556355d
Record created2009-09-10
Record modified2016-05-09
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