Structural disorder and elementary magnetic properties of triangular lattice ErMgGaO4 single crystals
Abstract
The single crystal growth, structure, and basic magnetic properties of ErMgGaO4 are reported. The structure consists of triangular layers of magnetic ErO6 octahedra separated by a double layer of randomly occupied non-magnetic (Ga,Mg)O5 bipyramids. The Er atoms are positionally disordered. Magnetic measurements parallel and perpendicular to the c axis of a single crystal reveal dominantly antiferromagnetic interactions, with a small degree of magnetic anisotropy. A weighted average of the directional data suggests an antiferromagnetic Curie Weiss temperature of approximately -30 K. Below 10 K the temperature dependences of the inverse susceptibilities in the in-plane and perpendicular-to plane directions are parallel, indicative of an isotropic magnetic moment at low temperatures. In conclusion, no sign of magnetic ordering is observed above 1.8 K, suggesting that ErMgGaO4 is a geometrically frustrated magnet.
- Authors:
-
- Princeton Univ., Princeton, NJ (United States)
- Publication Date:
- Research Org.:
- Princeton Univ., NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1441197
- Grant/Contract Number:
- FG02-08ER46544
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Solid State Communications
- Additional Journal Information:
- Journal Volume: 276; Journal Issue: C; Journal ID: ISSN 0038-1098
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; A. Geometrically frustrated oxides; C. Crystal structure and symmetry
Citation Formats
Cevallos, F. Alex, Stolze, Karoline, and Cava, Robert J. Structural disorder and elementary magnetic properties of triangular lattice ErMgGaO4 single crystals. United States: N. p., 2018.
Web. doi:10.1016/j.ssc.2018.03.015.
Cevallos, F. Alex, Stolze, Karoline, & Cava, Robert J. Structural disorder and elementary magnetic properties of triangular lattice ErMgGaO4 single crystals. United States. https://doi.org/10.1016/j.ssc.2018.03.015
Cevallos, F. Alex, Stolze, Karoline, and Cava, Robert J. Fri .
"Structural disorder and elementary magnetic properties of triangular lattice ErMgGaO4 single crystals". United States. https://doi.org/10.1016/j.ssc.2018.03.015. https://www.osti.gov/servlets/purl/1441197.
@article{osti_1441197,
title = {Structural disorder and elementary magnetic properties of triangular lattice ErMgGaO4 single crystals},
author = {Cevallos, F. Alex and Stolze, Karoline and Cava, Robert J.},
abstractNote = {The single crystal growth, structure, and basic magnetic properties of ErMgGaO4 are reported. The structure consists of triangular layers of magnetic ErO6 octahedra separated by a double layer of randomly occupied non-magnetic (Ga,Mg)O5 bipyramids. The Er atoms are positionally disordered. Magnetic measurements parallel and perpendicular to the c axis of a single crystal reveal dominantly antiferromagnetic interactions, with a small degree of magnetic anisotropy. A weighted average of the directional data suggests an antiferromagnetic Curie Weiss temperature of approximately -30 K. Below 10 K the temperature dependences of the inverse susceptibilities in the in-plane and perpendicular-to plane directions are parallel, indicative of an isotropic magnetic moment at low temperatures. In conclusion, no sign of magnetic ordering is observed above 1.8 K, suggesting that ErMgGaO4 is a geometrically frustrated magnet.},
doi = {10.1016/j.ssc.2018.03.015},
journal = {Solid State Communications},
number = C,
volume = 276,
place = {United States},
year = {Fri Mar 23 00:00:00 EDT 2018},
month = {Fri Mar 23 00:00:00 EDT 2018}
}
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Works referencing / citing this record:
Magnetic Properties of Disordered Li2Co2 – xNix(MoO4)3 (0 ≤ x ≤ 2) System with a Lyonsite Structure
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