Document type:
Zeitschriftenaufsatz
Author(s):
Boehm, M.; Coad, S.; Roessli, B.; Zheludev, A.; Zolliker, M.; B̈oni, P.; Paul, D. M.; Eisaki, H.; Motoyama, N.; Uchida, S.
Title:
Competing Exchange Interactions in {{Li}} {\textsubscript{2}} {{CuO}} {\textsubscript{2}}
Abstract:
The dispersion of the spin-waves in single crystals of Li2CuO2 has been investigated by means of inelastic neutron scattering. The results yield a single spin-wave branch characterized by a large gap \$훜crement\$ = 1.4 meV at the zone centre due to easy-axis uniaxial anisotropy. Linear spin-wave theory is used to obtain the exchange integrals in this material. It turns out that the nearest-neighbor exchange interactions in the basal plane are antiferromagnetic leading to frustration between the ma...    »

Journal title:
Europhysics Letters (EPL)
Year:
1998
Journal volume:
43
Month:
jul
Journal issue:
Pages contribution:
77
Language:
en
Fulltext / DOI:
Print-ISSN:
0295-5075, 1286-4854