Vanadium dioxide nanobelts: Hydrothermal synthesis and magnetic properties

Journal Article · Wed Sep 15 04:00:00 EDT 2010 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2010.06.001· OSTI ID:22207367

Hellmann, I. ^[1]; Volkov, V. L. ^[2]; Taeschner, Ch.; Bachmatiuk, A.; Leonhardt, A.; Klingeler, R.; Buechner, B. ^[1]

---

1. Leibniz-Institut fuer Festkoerper- und Werkstoffforschung (IFW) Dresden, Helmholtzstr. 20, D-01069 Dresden (Germany)
2. Institute of Solid State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, Yekaterinburg 620041 (Russian Federation)

VO{sub 2} (B) nanobelts were prepared by a hydrothermal method at 180 {sup o}C using V{sub 2}O{sub 5}.nH{sub 2}O sol and H{sub 2}C{sub 2}O{sub 4}.2H{sub 2}O as starting agents. The obtained nanobelts have diameters ranging from 50 to 100 nm in width, 20-30 nm in thickness with lengths up to 1.5 {mu}m. Measurements of the static magnetic susceptibility provide evidence for two phase transitions at T{sub 1} = 225 K and T{sub 2} = 290 K, respectively. Below T{sub 1}, the data suggest the presence quasi-free as well as of strongly antiferromagnetic correlated spins associated to V{sup 4+}-ions.

• OSTI ID: 22207367
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 9 Vol. 45; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANTIFERROMAGNETISM
ELECTRON MICROSCOPY
HYDROTHERMAL SYNTHESIS
MAGNETIC SUSCEPTIBILITY
NANOSTRUCTURES
VANADATES
VANADIUM IONS
VANADIUM OXIDES
X-RAY DIFFRACTION