Neutron scattering study of magnetic ordering in CuFe0.95Al0.05O2

Authors
Oohara, Y Mekata, M Morishita, T Kakurai, K Nishi, M Zhao, TR Takei, H
Citation
Y. Oohara et al., Neutron scattering study of magnetic ordering in CuFe0.95Al0.05O2, J PHYS JPN, 70(10), 2001, pp. 3031-3036
Citations number
11
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
00319015 → ACNP
Volume
70
Issue
10
Year of publication
2001
Pages
3031 - 3036
Database
ISI
SICI code
0031-9015(200110)70:10<3031:NSSOMO>2.0.ZU;2-7
Abstract
Magnetic ordering of CuFe0.95Al0.05O2 was studied by neutron scattering. Cu Fe0.95Al0.05O2 exhibits a quasi-long-range order below a pseudo-Neel temper ature, T-N 13.5 K The magnetic structure is a helical structure with the pr opagation vector (0.196 0.196 3/2). However, a true long-range order is not established even at 1.7 K. Neutron spin-echo measurements revealed that th e ordered magnetic moment becomes static below TN. The existence of the hel ical structure suggests that an Ising anisotropy of CuFeO2 is weak.