Nuclear spin excitations in Nd

Chatterji, T.; Frick, B.

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Nuclear spin excitations in Nd

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Chatterji, T.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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引用

Chatterji, T., & Frick, B. (2002). Nuclear spin excitations in Nd. Applied Physics A-Materials Science & Processing, 74(Suppl. S), S652-S654. Retrieved from http://link.springer.de/link/service/journals/00339/tocs/t2074s01.htm.

引用: https://hdl.handle.net/11858/00-001M-0000-002B-368A-E

要旨

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.