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dc.contributor.authorSHI, JBen_US
dc.contributor.authorHO, JCen_US
dc.contributor.authorLEE, TJen_US
dc.contributor.authorCHIOU, BSen_US
dc.contributor.authorKU, HCen_US
dc.date.accessioned2014-12-08T15:04:40Z-
dc.date.available2014-12-08T15:04:40Z-
dc.date.issued1993-01-15en_US
dc.identifier.issn0921-4534en_US
dc.identifier.urihttp://hdl.handle.net/11536/3150-
dc.description.abstractInsulating Bi2Sr2CoO6+delta is nearly isomorphic with the Bi(2201)-type high-T(c) superconductors. Magnetic and calorimetric studies were carried out on single crystal samples of this layered compound. Based on magnetic measurements, the cobalt ions undergo a canted antiferromapetic ordering at T(N) = 159 K. A low-temperature neutron diffraction study of the magnetic structure is in progress. The molar magnetic susceptibility chi(ab)(H perpendicular-to c) above 200 K can be well fitted by the Curie-Weiss form chi(ab)(T) = chi0+C/(T-theta(p)), with chi0 = 0.56 cm3K/mol, Curie constant C = 3.2 x 10(-2) cm3K/mol and Curie-Weiss intercept theta(p) = 159 K. There is no magnetic specific heat peak, however, prevailing around T(N). This anomalous calorimetric behavior is attributed to the two-dimensional quantum spin fluctuation of Co spins above T(N) in the layered compound as previously observed for Cu spins in (Gd1.85Ce0.15)CuO4-delta and La2CuO4-delta.en_US
dc.language.isoen_USen_US
dc.titleCOBALT ORDERING IN LAYERED BI2SR2COO6+DELTA-SINGLE CRYSTALen_US
dc.typeArticleen_US
dc.identifier.journalPHYSICA Cen_US
dc.citation.volume205en_US
dc.citation.issue1-2en_US
dc.citation.spage129en_US
dc.citation.epage132en_US
dc.contributor.department電控工程研究所zh_TW
dc.contributor.departmentInstitute of Electrical and Control Engineeringen_US
dc.identifier.wosnumberWOS:A1993KH99200017-
dc.citation.woscount4-
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