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Alignment of Tellurium Nanorods via a Magnetization-Alignment-Demagnetization ("MAD") Process assisted by an External Magnetic Field

Title data

Yuan, Jiayin ; Gao, Haitao ; Schacher, Felix ; Xu, Youyong ; Richter, Reinhard ; Tremel, Wolfgang ; Müller, Axel H. E.:
Alignment of Tellurium Nanorods via a Magnetization-Alignment-Demagnetization ("MAD") Process assisted by an External Magnetic Field.
In: ACS Nano. Vol. 3 (June 2009) Issue 6 . - pp. 1441-1450.
ISSN 1936-086X
DOI: https://doi.org/10.1021/nn9002715

Abstract in another language

Tellurium (Te) nanorods have been successfully aligned on a solid substrate via a
magnetization-alignment-demagnetization (“MAD”) process in the presence of an external magnetic field. Te
nanorods carrying a poly(tert-butyl methacrylate) shell were first converted into magnetic nanocylinders by
assembling magnetite nanoparticles on their surface via a hydrophobic interaction in THF. We demonstrate that,
below a critical concentration of the nanoparticles, this assembly process is able to quantitatively tune the
magnetite nanoparticles’ density on the nanorods in terms of their stoichiometric ratio. Due to the polymer and
surfactant on their surface, the formed magnetic nanocylinders are soluble in THF and aligned when dried on a
solid substrate in the presence of an external magnetic field. The demagnetization of the prealigned nanocylinders
was achieved via an acid-etching process, leaving Te nanorods in an aligned state. This MAD process can be
extended as a general procedure for other nonmagnetic 1-D nanostructures. Additionally, the nonetched magnetic
nanocylinders can be potentially applied in field of magnetorheology.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 24 Sep 2018 08:45
Last Modified: 24 Sep 2018 08:45
URI: https://eref.uni-bayreuth.de/id/eprint/42940