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          Institute: MPI für Physik Komplexer Systeme     Collection: Time dependent processes     Display Documents



ID: 478513.0, MPI für Physik Komplexer Systeme / Time dependent processes
Nuclear spin excitations in Nd
Authors:Chatterji, T.; Frick, B.
Language:English
Date of Publication (YYYY-MM-DD):2002-12
Title of Journal:Applied Physics A-Materials Science & Processing
Journal Abbrev.:Appl. Phys. A-Mater. Sci. Process.
Volume:74
Issue / Number:Suppl. S
Start Page:S652
End Page:S654
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We have investigated the low-energy excitations in Nd in the mueV range by a back-scattering neutron spectrometer. The energy scans on Nd revealed inelastic peaks at E = 2.67 +/- 0.06 ReV at T = 60 mK on both energy-gain and energy-loss sides. The inelastic peaks move gradually towards lower energy with increasing temperature, and finally merge with the elastic peak at zero energy transfer at the electronic magnetic ordering temperature T-N approximate to 19.8 K. At about 5 K we observe a second peak at E = 1.8 +/- 0.3 mueV, which also decreases in energy with increasing temperature. This second peak disappears at about 15 K. We interpret the inelastic peaks as low-energy nuclear spin excitations arising due to the Suhl- Nakamura indirect interaction.
External Publication Status:published
Document Type:Article
Communicated by:Heidrun Näther
Affiliations:MPI für Physik Komplexer Systeme/Visitors Program
External Affiliations:Inst Max Von Laue Paul Langevin, BP 156, F-38042 Grenoble,; France; Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France; Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
Identifiers:ISI:000181499600218
ISSN:0947-8396
URL:http://link.springer.de/link/service/journals/0033...
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