English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Ultrafine MnWO4 nanoparticles and their magnetic properties

MPS-Authors
/persons/resource/persons126506

Adler,  Peter
Peter Adler, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126838

Schnelle,  Walter
Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126601

Felser,  Claudia
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Ungelenk, J., Roming, S., Adler, P., Schnelle, W., Winterlik, J., Felser, C., et al. (2015). Ultrafine MnWO4 nanoparticles and their magnetic properties. Solid State Sciences, 46(0), 89-94. doi:10.1016/j.solidstatesciences.2015.06.004.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-A8E0-3
Abstract
Abstract Ultrafine nanoparticles of MnWO4, a compound showing low-temperature multiferroicity in the bulk, were synthesized by the polyol method. Studies using powder X-ray diffraction, scanning and transmission electron microscopy, dynamic light scattering, differential sedimentation and sorption techniques show the formation of a single-phase material, which is composed of MnWO4 nanoparticles with a prolate ellipsoidal shape (short axis of 4–5 nm, long axis of 11–12 nm) and an unprecedented high specific surface area of 166 m2 g−1. The as-prepared MnWO4 nanoparticles are readily crystalline after the liquid-phase synthesis. Temperature and field dependent magnetization measurements indicate antiferromagnetic behavior with a single magnetic phase transition near TN ≈ 6 K. In contrast, three successive transitions below 14 K were reported for multiferroic bulk-MnWO4. Above TN, the nanoparticles show Curie–Weiss-type paramagnetic behavior. Due to the large paramagnetic moment of Mn2+ (μeff ≈ 6.2 μB), the nanoparticles can be easily manipulated by a bar magnet at ambient temperature.