Nanometer structural columns and frustration of magnetic ordering in Nb{sub 12}O{sub 29}
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544 (United States)
- National Center for HREM, Department of Nanoscience, Delft University of Technology, Rotterdamseweg 137, 2682 AL Delft (Netherlands)
Single phase samples of the monoclinic and orthorhombic polymorphs of Nb{sub 12}O{sub 29} have been identified and isolated. These polymorphs have different arrangements of nanometer dimension structural columns of ReO{sub 3}-type niobium oxygen arrays: They differ in structure after a 3-nm translation in one of three dimensions while being the same in the other two. Magnetic susceptibility measurements show that one polymorph displays an antiferromagnetic transition at 12 K, along with short-range order fluctuations up to 25 K, while the other shows strict Curie-Weiss behavior down to 2 K.
- OSTI ID:
- 20719140
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 3 Vol. 72; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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