Universität zu Köln

Akhtar, Naureen, Donker, Michiel C., Kunsel, Tenzin, van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890, Palstra, Thomas T. M. and Rudolf, Petra ORCID: 0000-0002-4418-1769 (2019). Ultrathin molecule-based magnetic conductors: A step towards flexible electronics. MRS Adv., 4 (61-62). S. 3353 - 3365. NEW YORK: CAMBRIDGE UNIV PRESS. ISSN 2059-8521

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Abstract

Organic-inorganic hybrid materials have shown a remarkable and rapid development during the past decade because they can be tailored to obtain new device concepts with controlled physical properties. Here, we report on the electronic and magnetic properties of multilayer organic-inorganic hybrid films. Electrical transport properties arising from the pi electrons in the organic layer are characteristic of a metallic state at high temperature and evolve into a state described by two-dimensional variable range hopping when temperature decreases below 150 K. The intrinsic electronic behavior of the hybrid films was further studied via the optical properties in the IR range. The optical response confirms the metallic character of the hybrid films. In the second part, the magnetic properties are discussed. A long-range ferromagnetic order with an ordering temperature of similar to 1 K is revealed in the Gd-based hybrid film. The Cu-based hybrid film, however, shows more extended ferromagnetic exchange interactions than the Gd-based hybrid LB film.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Akhtar, Naureen UNSPECIFIED UNSPECIFIED UNSPECIFIED Donker, Michiel C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kunsel, Tenzin UNSPECIFIED UNSPECIFIED UNSPECIFIED van Loosdrecht, Paul H. M. UNSPECIFIED orcid.org/0000-0002-3704-9890 UNSPECIFIED Palstra, Thomas T. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rudolf, Petra UNSPECIFIED orcid.org/0000-0002-4418-1769 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-159919
DOI:	10.1557/adv.2019.464
Journal or Publication Title:	MRS Adv.
Volume:	4
Number:	61-62
Page Range:	S. 3353 - 3365
Date:	2019
Publisher:	CAMBRIDGE UNIV PRESS
Place of Publication:	NEW YORK
ISSN:	2059-8521
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language LANGMUIR-BLODGETT-FILMS; BEDO-TTF; METALLIC CONDUCTIVITY; REFLECTANCE SPECTRA; OPTICAL-PROPERTIES; TRANSPORT; FERROMAGNETISM; SINGLE Multiple languages Materials Science, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15991