MAGNETIC-INTERACTIONS AND MAGNETIC-ORDERING IN RARE-EARTH-METAL NITRONYL NITROXIDE CHAINS

被引：127

作者：

BENELLI, C ^{[1
]}

CANESCHI, A ^{[1
]}

GATTESCHI, D ^{[1
]}

SESSOLI, R ^{[1
]}

机构：

[1] UNIV FLORENCE,DEPT CHEM,I-50121 FLORENCE,ITALY

来源：

INORGANIC CHEMISTRY | 1993年 / 32卷 / 22期

关键词：

D O I：

10.1021/ic00074a023

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The magnetic behavior of a series of compounds with general formula RE(hfaC)3NITEt (RE = Tb, Er, Ho; hfac = hexafluoracetylacetonate; NITEt = 2-ethyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-l-oxyl 3-oxide) are reported. The presence of lanthanide ions with anisotropic ground states deeply influences the magnetic behavior of these low-dimensional systems. In particular magnetic phase transitions to ordered states are observed. The nature of these transitions is analyzed and the unusually high critical temperatures are related to the anisotropy of the rare earth metal ions. The coupling mechanisms are reconsidered in comparison with those discussed for similar systems where diamagnetic or isotropic metal ions are present.

引用

页码：4797 / 4801

页数：5

共 36 条

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