Low-energy quasi-one-dimensional spin dynamics in charge-ordered La 2-xSrxNiO&lt;sub&gt;4&lt;/sub&gt;

Freeman, P.G.; Prabhakaran, D.; Nakajima, K.; Stunault, A.; Enderle, M.; Niedermayer, C.; Frost, C.D.; Yamada, K.; Boothroyd, A.T.

doi:10.1103/PhysRevB.83.094414

Low-energy quasi-one-dimensional spin dynamics in charge-ordered La 2-xSrxNiO₄

Freeman PG, Prabhakaran D, Nakajima K, Stunault A, Enderle M, Niedermayer C, Frost CD, Yamada K & Boothroyd AT

Citation

Freeman, P. G., Prabhakaran, D., Nakajima, K., Stunault, A., Enderle, M., Niedermayer, C., … Boothroyd, A. T. (2011). Low-energy quasi-one-dimensional spin dynamics in charge-ordered La 2-xSrxNiO₄. Physical Review B, 83(9), 094414 (6 pp.). https://doi.org/10.1103/PhysRevB.83.094414

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:14016

The low-energy spin excitations of La2-xSrxNiO 4, x=0.275 and 1/3, have been investigated by unpolarized- and polarized-inelastic neutron scattering from single crystals. A pattern of magnetic diffuse scattering is observed in both compositions and is consistent with quasi-one-dimensional AFM spin correlations along the charge stripes. Analysis of the energy line shape for x=1/3 indicates that the diffuse scattering is inelastic with a characteristic energy of 1.40±0.07 meV. There is no discernible difference between the diffuse scattering from x=0.275 and x=1/3, suggesting that it is an intrinsic property of the charge stripes.

Details

Publication Type

Journal Article

Title

Low-energy quasi-one-dimensional spin dynamics in charge-ordered La 2-xSrxNiO₄

Author(s)

Freeman, P.G.

Prabhakaran, D.

Nakajima, K.

Stunault, A.

Enderle, M.

Niedermayer, C. (3302 Neutron Spectroscopy)