Magnetic ground states of RMn4Al8, R = La, Pr, Y
Magnetic ground states of RMn4Al8, R = La, Pr, Y
Yamasaki et al. (Solid State Commun. 119 (2001) 415) have suggested that LaMn4Al8 is a nearly antiferromagnetic metal with linear chains of Mn atoms. We present evidence from ZF-?SR measurements that both LaMn4Al8 and the related compound PrMn4Al8 display antiferromagnetic order at low temperatures. In LaMn4Al8 the ?SR relaxation rate rises to a peak at 4.5 K; below this temperature the asymmetry decreases smoothly. In PrMn4Al8 well-defined oscillations appear below 35 K. Neutron crystal field spectroscopy suggests a singlet ground state for the Pr3+ ion, so it is likely that the internal field seen by the muons arises from ordered Mn moments. YMn4Al8 shows no sign of magnetic correlations down to 1.2 K.
low-dimensional magnetism, LaMn4Al8, PrMn4Al8, ?SR, magnetic order
929-931
Rainford, B.D.
a57f1153-bbba-49a3-bffc-0d96087156a0
Leavey, C.J.
036b92b8-f811-4ae2-b541-8f1e2cf20d99
Hillier, A.D.
89e88dd9-6b7a-4b1d-a399-99b5bc301e9a
Stewart, J.R.
696842e4-4156-4018-af01-b71320976c13
2005
Rainford, B.D.
a57f1153-bbba-49a3-bffc-0d96087156a0
Leavey, C.J.
036b92b8-f811-4ae2-b541-8f1e2cf20d99
Hillier, A.D.
89e88dd9-6b7a-4b1d-a399-99b5bc301e9a
Stewart, J.R.
696842e4-4156-4018-af01-b71320976c13
Rainford, B.D., Leavey, C.J., Hillier, A.D. and Stewart, J.R.
(2005)
Magnetic ground states of RMn4Al8, R = La, Pr, Y.
Physica B: Condensed Matter, 359, .
(doi:10.1016/j.physb.2005.01.266).
Abstract
Yamasaki et al. (Solid State Commun. 119 (2001) 415) have suggested that LaMn4Al8 is a nearly antiferromagnetic metal with linear chains of Mn atoms. We present evidence from ZF-?SR measurements that both LaMn4Al8 and the related compound PrMn4Al8 display antiferromagnetic order at low temperatures. In LaMn4Al8 the ?SR relaxation rate rises to a peak at 4.5 K; below this temperature the asymmetry decreases smoothly. In PrMn4Al8 well-defined oscillations appear below 35 K. Neutron crystal field spectroscopy suggests a singlet ground state for the Pr3+ ion, so it is likely that the internal field seen by the muons arises from ordered Mn moments. YMn4Al8 shows no sign of magnetic correlations down to 1.2 K.
This record has no associated files available for download.
More information
Published date: 2005
Keywords:
low-dimensional magnetism, LaMn4Al8, PrMn4Al8, ?SR, magnetic order
Identifiers
Local EPrints ID: 57565
URI: http://eprints.soton.ac.uk/id/eprint/57565
ISSN: 0921-4526
PURE UUID: 2716139f-973f-4698-a008-623c33668fdb
Catalogue record
Date deposited: 13 Aug 2008
Last modified: 15 Mar 2024 11:07
Export record
Altmetrics
Contributors
Author:
B.D. Rainford
Author:
C.J. Leavey
Author:
A.D. Hillier
Author:
J.R. Stewart
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics