PERCOLATION BEHAVIOR IN COCMG1-CCL2 AND STAGE-2 COCMG1-CCL2 GRAPHITE-INTERCALATION COMPOUNDS

Citation
Is. Suzuki et al., PERCOLATION BEHAVIOR IN COCMG1-CCL2 AND STAGE-2 COCMG1-CCL2 GRAPHITE-INTERCALATION COMPOUNDS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 244, 1994, pp. 99-104
Citations number
6
Categorie Soggetti
Crystallography
ISSN journal
1058725X
Volume
244
Year of publication
1994
Pages
99 - 104
Database
ISI
SICI code
1058-725X(1994)244:<99:PBICAS>2.0.ZU;2-Q
Abstract
The magnetic phase transition of bulk CocMg1-cCl2 and stage-2 CocMg1-c Cl2 GIC has been studied by dc and ac magnetic susceptibility, and low field SQUID magnetization measurements. The critical temperature decr eases with the dilution of nonmagnetic Mg2+ ions and reduces to zero a t the percolation threshold c(p): c(p) approximate to 0.5 for stage-2 CocMg1-cCl2 GIC and c(p) approximate to 0.36 for Co(c)Mg1-cCl(2). A po ssible one-dimensional character of stage-2 CocMg1-cCl2 GIC near c = c p and the irreversible effect of magnetization below the critical temp erature for stage-2 CocMg1-cCl2 GIC (0.74 less than or equal to c less than or equal to 1) are discussed.