Magnetic field-induced changes in the electronic absorption intensities of NENB

Autor:	P.O. Makumbe, X. Wei, V. C. Long, E. C. Schundler, Mark M. Turnbull, Christopher P. Landee
Rok vydání:	2004
Předmět:	Materials science Absorption spectroscopy Condensed matter physics Analytical chemistry chemistry.chemical_element Electronic structure Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Magnetization Nickel chemistry Transition metal Isostructural Critical field
Zdroj:	Journal of Magnetism and Magnetic Materials. :968-969
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2003.12.034
Popis:	Ni[C 2 H 8 N 2 ] 2 NO 2 BF 4 (NENB) is isostructural to Ni[C 2 H 8 N 2 ] 2 NO 2 ClO 4 , a prototypical Haldane compound. We report the polarized optical transmittance of NENB as a function of applied magnetic field ( H ) up to 30 T. Electronic absorption intensities become modified above the critical field ( H c ≈7.5–10.5 T, as determined from weak kinks in the magnetization data). For H > H c , the intensities of Ni 2+ d – d excitations in both polarizations are diminished, whereas the charge transfer transition along the nickel chain is enhanced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3c179d6c75d884e4b17b31802f87e02e https://doi.org/10.1016/j.jmmm.2003.12.034 Zobrazit plný text záznamu Full Text from ScienceDirect