Published February 2005
| Version v1
Journal article
Phonons and magnons in stripe-ordered nickelates. A Raman scattering study
Creators
- 1. B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103 (Ukraine)
- 2. Galkin Donetsk Physico-Technical Institute of the National Academy of Sciences of Ukraine 72 R. Luxemburg Str., Donetsk 83114 (Ukraine)
- 3. MPI for Solid State Research, MPI-FKF, Stuttgart D-70569 (Germany)
- 4. Brookhaven National Laboratory, Upton, New York 11973 (United States)
- 5. Physikalisches Institut, RWTH Aachen, Aachen 52056 (Germany)
- 6. Neutron Scattering Laboratory ISSP, University of Tokyo, Tokai, Ibaraki (Japan)
Description
Electronic correlation effects in La2-xSrxNiO4 (x = 1/3 and 0.225) lead to spontaneous phase separation into microscopic spin/charge stripes with commensurate and incommensurate order, respectively. Raman scattering experiments on such single crystalline materials show a rich phenomenology of phonon and magnon anomalies due to the new, self-organized periodicities. These effects are observable as function of temperature but can also be induced by cooling in a seemingly small magnetic field leading to a reorganization of stripe structure
Additional details
Publishing Information
- Journal Title
- Fizika Nizkikh Temperatur
- Journal Volume
- 31
- Journal Issue
- 2
- Journal Page Range
- p. 205-212
- ISSN
- 0132-6414
INIS
- Country of Publication
- Ukraine
- Country of Input or Organization
- Ukraine
- INIS RN
- 36055273
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANTIFERROMAGNETISM; CHARGE CARRIERS; DOMAIN STRUCTURE; DOPED MATERIALS; ELECTRON CORRELATION; ELECTRONIC STRUCTURE; LANTHANUM OXIDES; MAGNETIC FIELDS; MAGNONS; NICKEL OXIDES; PHONONS; RAMAN SPECTRA; SPIN ORIENTATION; STRONTIUM OXIDES; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CORRELATIONS; LANTHANUM COMPOUNDS; MAGNETISM; MATERIALS; NICKEL COMPOUNDS; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; QUASI PARTICLES; RARE EARTH COMPOUNDS; SPECTRA; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS