The magnetic properties Of M2V2O7 (M = Co, Ni and Cu) have been investigated between 4 and 300K. The results emphasize the relationships between the structural and physical properties of the titled compounds. M2V2O7 (M = Co, Ni) exhibit a dichromate structure. The Ni-compound is antiferromagnetic c, but the Co-one is ferromagnetic. Their specific heats confirm the low dimensionality at high temperature, and the magnetic transition is probably due to 3d-1d transition. The two varieties Of Cu2V2O7 Compounds are type thortveitite. alpha-Cu2V2O7 is an orthorthombic and beta-Cu2V2O7 is a monoclinic. The beta-Cu2V2O7 is an anti ferromagned c compound while beta-Cu2V2O7 is appraised as a ferromagnetic or canted antiferromagnetic one. (C) 2003 Elsevier B.V. All rights reserved.
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Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
Fujian Police Coll, Dept Criminal Invest, Fuzhou 350007, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
Zhu, Xiao-Quan
Sheng, Tian-Lu
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Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
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Univ Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, SerbiaUniv Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
Radovanovic, Lidija
Rogan, Jelena
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Univ Belgrade, Fac Technol & Met, Dept Gen & Inorgan Chem, Karnegijeva 4, Belgrade 11000, SerbiaUniv Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
Rogan, Jelena
Poleti, Dejan
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Univ Belgrade, Fac Technol & Met, Dept Gen & Inorgan Chem, Karnegijeva 4, Belgrade 11000, SerbiaUniv Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
Poleti, Dejan
Rodic, Marko V.
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Univ Novi Sad, Fac Sci, Trg Dositeja Obradovica 3, Novi Sad 21000, SerbiaUniv Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
Rodic, Marko V.
Jaglicic, Zvonko
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Univ Ljubljana, Fac Civil & Geodet Engn, Jamova 2, Ljubljana 1000, Slovenia
Univ Ljubljana, Inst Math Phys & Mech, Jamova 2, Ljubljana 1000, SloveniaUniv Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia