Magnetic interactions in the ludwigite Ni2FeO2BO3

被引：51
作者：
Fernandes, JC
Guimaraes, RB
Continentino, MA
Borges, HA
Sulpice, A
Tholence, JL
Siqueira, JL
Zawislak, LI
da Cunha, JBM
dos Santos, CA
机构：
[1] Univ Fed Fluminense, Inst Fis, BR-24210340 Niteroi, RJ, Brazil
[2] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22452970 Rio De Janeiro, Brazil
[3] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble 9, France
[4] CNRS, Lab Proprietes Electron Solides, F-38042 Grenoble 9, France
[5] Univ Fed Rio Grande Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
来源：
PHYSICAL REVIEW B | 1998年 / 58卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.58.287
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present an investigation of the magnetic properties of the ludwigite Ni2FeO2BO3. This material is an oxyborate that presents in its crystalline structure subunits in the form of walls where the transition metal ions are located. Our Mossbauer, ac susceptibility, and magnetization measurements show that Fe and Ni ions form two independent subsystems in this material down to T-N=15 K. We explain this behavior in terms of a hierarchy of interactions. [S0163-1829(98)01325-3].
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页码：287 / 292
页数：6
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