Title: Spin fluctuations in Y1-xScxMn2 and Y(Mn1-xAlx)(2) observed by perturbed-angular-correlation spectroscopy
Authors: Demuynck, S ×
Mishra, SN
Tulapurkar, AA
Cottenier, Stefaan
Meersschaut, Johannes
Rots, Michel #
Issue Date: Jan-2001
Publisher: Elsevier science bv
Series Title: Physica b-condensed matter vol:293 issue:3-4 pages:376-381
Abstract: We have made investigations of the magnetic interactions of Mn spins in the geometrically frustrated Laves-phase compounds Y0.96Sc0.04Mn2 and Y(Mn0.97Al0.03)(2) by measuring the magnetic hyperfine field on Cd-111 as a function of temperature and applied magnetic field using perturbed-angular-correlation (PAC) spectroscopy. In Y0.96Sc0.04Mn2 we find evidence for short-range magnetic correlations with a broad distribution of spin-relaxation times, consistent with spin-liquid-like behaviour. In Y(Mn0.97Al0.03)(2) the results reveal static Mn spins developing long-range magnetic ordering in a spin-glass state below 115 K. (C) 2001 Elsevier Science B.V, All rights reserved.
ISSN: 0921-4526
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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