Preprint article · Journal article
Nature of the magnetic order in the charge-ordered cuprate La1.48Nd0.4Sr0.12CuO4
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Using polarized neutron scattering we establish that the magnetic order in La1.48Nd0.4Sr0.12CuO4 is either (i) one dimensionally modulated and collinear, consistent with the stripe model or (ii) two dimensionally modulated with a novel noncollinear structure. The measurements rule out a number of alternative models characterized by 2D electronic order or 1D helical spin order.
The low-energy spin excitations are found to be primarily transversely polarized relative to the stripe ordered state, consistent with conventional spin waves.
| Language: | English |
|---|---|
| Year: | 2007 |
| Pages: | 197003 |
| ISSN: | 00319007 and 10797114 |
| Types: | Preprint article and Journal article |
| DOI: | 10.1103/PhysRevLett.98.197003 |
| ORCIDs: | Christensen, Niels Bech |
ANTIFERROMAGNET COPPER-OXIDE SUPERCONDUCTORS DEPENDENCE Energiteknologier på vej FLUCTUATIONS LA2-XSRXCUO4 NEUTRON-SCATTERING SPIN EXCITATIONS STATES STRIPES TRANSITION-TEMPERATURE SUPERCONDUCTOR
