Very-low temperature magnetic ordering and dimensionality of the square planar system cobalt(II) phenoxyacetate

Autor:	Jean-Michel Rueff, Marc Drillon, Carley Paulsen, Pierre Rabu, J. Souletie
Rok vydání:	2005
Předmět:	Materials science Condensed matter physics chemistry.chemical_element General Chemistry Atmospheric temperature range Condensed Matter Physics Power law Square (algebra) chemistry General Materials Science Ising model Cobalt Scaling Critical exponent Curse of dimensionality
Zdroj:	Solid State Sciences. 7:431-436
ISSN:	1293-2558
DOI:	10.1016/j.solidstatesciences.2005.01.005
Popis:	The magnetic behaviour of the layered compound [Co(O2C(CH2)OC6H5)2(H2O)2]n (1) has been fully analysed, in the temperature range 150 mK to 300 K. The compound exhibits below 10 K a ferromagnetic-like behaviour and a long-range order at T C = 0.57 K . The magnetic dimensionality has been analysed by using scaling approach. The high temperature behaviour is well described by an exponential law while in the vicinity of T C a power law variation is characteristic of a 2D to 3D crossover. The critical exponent γ = 1.26 deduced by fitting the experimental data above T C agrees well with that expected for an Ising system.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7801f2b42c3c185a68ca95992808dd75 https://doi.org/10.1016/j.solidstatesciences.2005.01.005 Zobrazit plný text záznamu Full Text from ScienceDirect