Title: Magnetic Susceptibility and Optical Spectra of the Organic-intercalated Two-dimensional Ferromagnets Bis(monomethylammonium)- and Bis(monoethylammonium) Tetrachlorochromate(II)
Abstract: Molecules into Materials, pp. 416-421 (2007) No AccessMagnetic Susceptibility and Optical Spectra of the Organic-intercalated Two-dimensional Ferromagnets Bis(monomethylammonium)- and Bis(monoethylammonium) Tetrachlorochromate(II)Carlo Bellitto and Peter DayCarlo BellittoOxford University, Inorganic Chemistry Laboratory, South Parks Road, Oxford OX1 3QR, UK and Peter DayOxford University, Inorganic Chemistry Laboratory, South Parks Road, Oxford OX1 3QR, UKhttps://doi.org/10.1142/9789812706836_0025Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: The title compounds have been prepared and characterised by chemical analysis and X-ray diffraction. By magmetic-susceptibility and magnetisation measurements they are shown to order ferromagnetically at Tc = 58 ± 2 and 55 ± 2 K respectively. Up to ca. 0.7 Tc the magnetisation M(T) obeys the equation 1 − [M(T)/M(0)] = CTγ where γ = 1.5 ± 0.1. The optical spectra of both compounds contain sharp absorption bands at 533 and 626 nm, assigned as quintet–triplet ligand-field transitions. Up to 0.9 Tc their intensities vary with temperature as T2, as predicted for 'hot' exciton–magnon combination bands in a two-dimensional easy-plane ferromagnet. FiguresReferencesRelatedDetails Molecules into MaterialsMetrics History PDF download
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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