Universität zu Köln

Zakutna, D., Vlcek, J., Fitl, P., Nemkovski, K., Honecker, D., Niznansky, D. and Disch, Sabrina ORCID: 0000-0002-4565-189X (2018). Noncollinear magnetism in nanosized cobalt chromite. Phys. Rev. B, 98 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

Using a combination of neutron diffraction with XYZ polarization analysis and magnetization measurements, the noncollinear magnetism in nanosized cobalt chromite, a potential multiferroic material, is revealed. For noninteracting 26.9(1) nm nanoparticles, a bulklike behavior is identified, including a ferrimagnetic Curie temperature of 99 K and a transition to the spin spiral magnetic phase at 27 K with a temperature-dependent, incommensurate propagation vector. A lock-in transition towards a commensurate propagation vector is not observed. Much smaller, 3.1(2) nm, nanoparticles reveal a strong cluster glass behavior, characterized by ferrimagnetic behavior below the Curie temperature of 43 K and a transition to asperomagnetic behavior at 18 K, with the absence of any magnetic reflections at a base temperature of 5 K.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zakutna, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vlcek, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fitl, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nemkovski, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Honecker, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Niznansky, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Disch, Sabrina UNSPECIFIED orcid.org/0000-0002-4565-189X UNSPECIFIED
URN:	urn:nbn:de:hbz:38-176647
DOI:	10.1103/PhysRevB.98.064407
Journal or Publication Title:	Phys. Rev. B
Volume:	98
Number:	6
Date:	2018
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language POLARIZATION ANALYSIS; SPIN; TRANSITIONS; STATE; PHASE Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17664