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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
Long-range magnetic order in CeRu
2
Al
10
studied via muon spin relaxation and neutron diffraction
Physical Review B - Condensed Matter and Materials Physics, Volume 82, No. 10, Article 100405, Year 2010
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Description
The low-temperature state of CeRu2 Al10 has been studied by neutron powder diffraction and muon spin relaxation. By combining both techniques, we prove that the transition occurring at T* ∼27 K, whose origin has been the subject of considerable debate, is unambiguously magnetic due to the ordering of the Ce sublattice. The magnetic structure with a propagation vector of k= (1,0,0) involves a collinear antiferromagnetic alignment of the Ce moments along the c axis of the Cmcm space group with a reduced moment of 0.34 (2) μB. No structural changes within the resolution limit have been detected below the transition temperature. However, the temperature dependence of the magnetic Bragg peaks and the muon precession frequency show an anomaly around T2 ∼12 K indicating a possible second transition. © 2010 The American Physical Society.
Authors & Co-Authors
Khalyavin, D. Dmitrievich
United Kingdom, Didcot
Isis Neutron and Muon Source
Hillier, Adrian D.
United Kingdom, Didcot
Isis Neutron and Muon Source
Adroja, Devashibhai Thakarshibhai
United Kingdom, Didcot
Isis Neutron and Muon Source
Strydom, André Michael
South Africa, Johannesburg
University of Johannesburg
Manuel, Pascal
United Kingdom, Didcot
Isis Neutron and Muon Source
Chapon, Laurent C.
United Kingdom, Didcot
Isis Neutron and Muon Source
Peratheepan, P.
South Africa, Johannesburg
University of Johannesburg
Knight, Kevin Steven
United Kingdom, Didcot
Isis Neutron and Muon Source
Deen, Pascale P.
France, Grenoble
Institut Laue-langevin
Ritter, Clemens
France, Grenoble
Institut Laue-langevin
Muro, Yuji
Japan, Higashihiroshima
Hiroshima University
Takabatake, T.
Japan, Higashihiroshima
Hiroshima University
Statistics
Citations: 94
Authors: 12
Affiliations: 4
Identifiers
Doi:
10.1103/PhysRevB.82.100405
ISSN:
10980121
e-ISSN:
1550235X