Journal article
Mapping spin-wave dispersions in stripe-ordered La2-xSrxNiO4 (x=0.275, 0.333)
- Abstract:
-
Using the MAPS spectrometer at the ISIS spallation source, we have measured the magnetic excitations of single-crystal samples of stripe-ordered La2-x Srx Ni O4 with x=0.333 and 0.275. The full two-dimensional spin-wave dispersions were obtained using incident energies of 60 and 160 meV. To analyze the excitations, we have evaluated a spin-only Hamiltonian describing diagonal, site-centered stripes in the linear spin-wave approximation. Besides the superexchange energy J within antiferromagne...
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- Publication status:
- Published
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Bibliographic Details
- Journal:
- Physical Review B
- Volume:
- 72
- Issue:
- 6
- Publication date:
- 2005-08-01
- DOI:
- EISSN:
-
1550-235X
- ISSN:
-
1098-0121
- Source identifiers:
-
29920
Item Description
- Language:
- English
- Pubs id:
-
pubs:29920
- UUID:
-
uuid:ceb817d9-9b92-4489-9521-fab876781458
- Local pid:
- pubs:29920
- Deposit date:
- 2012-12-19
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- Copyright date:
- 2005
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