{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361981469409278976.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1088/0953-8984/9/19/012"}},{"identifier":{"@type":"DOI","@value":"10.48550/arxiv.cond-mat/9610109"}}],"dc:title":[{"@value":"Low-temperature properties of quantum antiferromagnetic chains with alternating spins and"}],"description":[{"notation":[{"@value":"We study the low-temperature properties of S=1 and 1/2 alternating spin chains with antiferromagnetic nearest-neighbor exchange couplings using analytical techniques as well as a quantum Monte Carlo method. The spin-wave approach predicts two different low-lying excitations, which are gapped and gapless, respectively. The structure of low-lying levels is also discussed by perturbation theory in the strength of the Ising anisotropy. These analytical findings are compared with the results of quantum Monte Carlo calculations and it turns out that spin-wave theory well describes the present system. We conclude that the quantum ferrimagnetic chain exhibits both ferromagnetic and antiferromagnetic aspects."}]},{"notation":[{"@value":"13 pages, RevTeX, six figures, submitted to J. Phys. Cond. Mat"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380848659344880772","@type":"Researcher","foaf:name":[{"@value":"S Brehmer"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469409278977","@type":"Researcher","foaf:name":[{"@value":"H-J Mikeska"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981469409278976","@type":"Researcher","foaf:name":[{"@value":"Shoji Yamamoto"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"09538984"},{"@type":"EISSN","@value":"1361648X"},{"@type":"PISSN","@value":"http://id.crossref.org/issn/09538984"}],"prism:publicationName":[{"@value":"Journal of Physics: Condensed Matter"}],"dc:publisher":[{"@value":"IOP Publishing"}],"prism:publicationDate":"1997-05-12","prism:volume":"9","prism:number":"19","prism:startingPage":"3921","prism:endingPage":"3930"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","createdAt":"2002-08-25","modifiedAt":"2020-04-11","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Condensed%20Matter%20(cond-mat)","dc:title":"Condensed Matter (cond-mat)"},{"@id":"https://cir.nii.ac.jp/all?q=FOS:%20Physical%20sciences","dc:title":"FOS: Physical sciences"},{"@id":"https://cir.nii.ac.jp/all?q=Condensed%20Matter","dc:title":"Condensed Matter"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050845760781922176","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Effective field theory and the scattering process for magnons in ferromagnets, antiferromagnets, and ferrimagnets"}]},{"@id":"https://cir.nii.ac.jp/crid/1360290617682742656","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Low-energy magnetic excitations in the mixed spin-(\n<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"><mml:mrow><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac><mml:mo>,</mml:mo><mml:mfrac><mml:mn>5</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:mrow></mml:math>\n) chain"}]},{"@id":"https://cir.nii.ac.jp/crid/1360298337269850496","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Polarized Raman Response of Two-Dimensional Quasiperiodic Antiferromagnets: Configuration-Interaction versus Green’s Function Approaches"}]},{"@id":"https://cir.nii.ac.jp/crid/1360566399834904832","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Coupled Cluster Treatment of the Alternating Bond Diamond Chain"}]},{"@id":"https://cir.nii.ac.jp/crid/1360588380593169024","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Magnon Confinement on the Two-Dimensional Penrose Lattice: Perpendicular-Space Analysis of the Dynamic Structure Factor"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848659344880640","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Magnetization and spin gap in two-dimensional organic ferrimagnet BIPNNBNO"}]},{"@id":"https://cir.nii.ac.jp/crid/1522543656039105152","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Magnetic Properties of a Mixed Spin-(1/2, 5/2) Chain in (4-Cl-o-MePy-V)FeCl₄"}]},{"@id":"https://cir.nii.ac.jp/crid/1522825128369420160","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Modified Spin-Wave Theory on Low-Dimensional Heisenberg Ferrimagnets : A New Robust Formulation"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1088/0953-8984/9/19/012"},{"@type":"OPENAIRE","@value":"doi_dedup___::506529d15cfc6a2b6a3669d438c0fa48"},{"@type":"CROSSREF","@value":"10.7566/jpsj.90.064707_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.1103/physrevb.102.060408_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.7566/jpsj.91.053701_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.7566/jpsj.86.034714_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.3390/cryst14080702_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.1088/0953-8984/24/30/306003_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.1093/ptep/ptw095_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"},{"@type":"CROSSREF","@value":"10.7566/jpsj.84.114713_references_DOI_FDkmYEiE3W38DVN10UW7zSulSTn"}]}