Journal Article

PUBDB-2024-08063

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Synthesis and properties of Sr$_2$La$_2$NiW$_2$O$_{12}$ , a new S = 1 triangular lattice magnet

Smerechuk, A. ; Guilherme Buzanich, A.Extern* ; Büchner, B. ; Wurmehl, S. ; Morrow, R. (Corresponding author)Extern*

2024
Wiley-Blackwell Oxford [u.a.]

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Please use a persistent id in citations: doi:10.1107/S2052520624007091  doi:10.3204/PUBDB-2024-08063

Abstract: Magnetic materials featuring triangular arrangements of spins are frequently investigated as platforms hosting magnetic frustration. Hexagonal perovskites with ordered vacancies serve as excellent candidates for two-dimensional triangular magnetism due to the considerable separation of the magnetic planes. In this work, the effects of chemical pressure on the ferromagnetic ground state of Ba2La2NiW2O12 by substitution of Ba2+ with Sr2+ to produce Sr2La2NiW2O12 are investigated. The two materials are characterized using synchrotron-based XRD, XANES and EXAFS in addition to magnetometry in order to correlate their crystal structures and magnetic properties. Both materials form in space group R3, yet as a result of the enhanced bending of key bond angles due to the effects of chemical pressure, the TC value of the magnetic Ni2+ sublattice is reduced from ∼6 K in Ba2La2NiW2O12 to 4 K in Sr2La2NiW2O12.

Note: Thefollowing funding is acknowledged: Deutsche Forschungsge-meinschaft (grant No. 247310070)

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. DFG project G:(GEPRIS)247310070 - SFB 1143: Korrelierter Magnetismus: Von Frustration zu Topologie (247310070) (247310070)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
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