Magnetic blocking in ferronematic liquid crystals

Authors
Walton, D Shibli, SM
Citation
D. Walton et Sm. Shibli, Magnetic blocking in ferronematic liquid crystals, J MAGN MAGN, 226, 2001, pp. 1948-1950
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
2
Pages
1948 - 1950
Database
ISI
SICI code
0304-8853(200105)226:<1948:MBIFLC>2.0.ZU;2-1
Abstract
It is self-evident that ferrofluid particles added to liquid crystals to fo rm ferronematics must be blocked at room temperature in order to be able to orient the ferronematics at low fields ( similar to 10(-2) T). Magnetite p articles similar to 10 nm are commonly used, but their blocking temperature is similar to 100 K. We will show that they are indeed paramagnetic in the ferrofluid, but become blocked when added to the liquid crystal. (C) 2001 Elsevier Science B.V. All rights reserved.