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dc.contributor.authorWaplak, S.
dc.contributor.authorSchmidt, V. Hugo
dc.contributor.authorDrumheller, John E.
dc.identifier.citationS. Waplak, V.H. Schmidt, and J.E. Drumheller, “EPR investigation of Cu2+ tetramers in ferroelectric CsH2PO4,� Phys. Rev. B 32, 48-52 (1985)en_US
dc.description.abstractEPR study of CsH2PO4 (CDP) single crystals with 0.005 mol % of Cu2+ at room temperature reveals isolated Cu2+ (S=(1/2)) complexes with four ligand coordination and spin Hamiltonian parameters gpara=2.2575, g⊥=2.1866, Apara=30 G, and A⊥=27 G. At temperatures below 250 K the spectra were observed to have fine structure and are described as arising from a Cu2+ tetramer with effective spin S=2 and spin Hamiltonian parameters D=0.181 cm−1, E=-0.081 cm−1, a=0.001 cm−1, b=0, and c=-0.021 cm−1. Also reported are transitions within the S=1 multiplet of the tetramer, and a microscopic model of superexchange interaction has been used to evaluate the parameters Dx=0.543 cm−1 and Ex=-0.159 cm−1. A tetramer model as well as a temperature dependence of the ratio of tetramer–to–single-ion intensity is presented.en_US
dc.subjectHigh temperature physicsen_US
dc.subjectMaterials scienceen_US
dc.titleEPR investigation of Cu2+ tetramers in ferroelectric CsH2PO4en_US
mus.citation.journaltitlePhysical Review Ben_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.relation.collegeCollege of Letters & Science
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.universityMontana State University - Bozemanen_US

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