Spin excitations in stripe-ordered La2-xSrxNiO4 (x=0.275 and 1/3)

Autor: Boothroyd, AT, Freeman, PG, Prabhakaran, D, Woo, H, Nakajima, K, Tranquada, JM, Yamada, K, Frost, CD
Rok vydání: 2003
Předmět:
DOI: 10.48550/arxiv.cond-mat/0308630
Popis: 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.
Comment: 2 pages, 2 figs. Presented at ICM'2003, to appear in J Magn Magn Mater
Databáze: OpenAIRE