Spin excitations in stripe-ordered La2-xSrxNiO4 (x=0.275 and 1/3)
A.T. Boothroyd, P.G. Freeman, D. Prabhakaran, H. Woo, K. Nakajima,, J.M. Tranquada, K. Yamada, and C.D. Frost
TL;DR
This study uses neutron scattering to analyze magnetic excitations in stripe-ordered La2-xSrxNiO4, revealing similar dispersion but different line widths between two doping levels, enhancing understanding of magnetic dynamics in these materials.
Contribution
It provides detailed measurements of spin excitations in stripe-ordered La2-xSrxNiO4, highlighting differences in line widths at different doping levels.
Findings
Similar dispersion relations for x=0.275 and 1/3
Broader line widths at x=0.275
Insights into magnetic excitation behavior in stripe phases
Abstract
We report neutron scattering measurements of the spectrum of magnetic excitations in the stripe-ordered phase of La2-xSrxNiO4 (x=0.275 and 1/3). The propagating spin excitations follow a similar dispersion relation for the two compositions, but the line widths are broader for x=0.275 than for x=1/3.
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