27Al nuclear magnetic resonance spectra of Ce3Al11 at low temperatures
✍ Scribed by J.L. Gavilano; J. Hunziker; S. Bu¨chi; Z. Fisk; H.R. Ott
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 165 KB
- Volume
- 194-196
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
We have measured the 27A1 nuclear magnetic resonance, NMR, spectra of oriented powder of the intermetallic compound CeaAlll at temperatures between 0.03 K and 20 K, and frequencies of 2.815 MHz, 3.925 MHz, 9.208 MHz and 74.81 MHz. In the paramagnetic state the NMR spectra show the quadrupolar-split contribution of the four inequivalent Al-sites with strongly temperature-dependent Knigth shifts. The NMR spectra indicate the onset of a ferromagnetic phase below 6.2 K transforming into a sinusoidally modulated antiferromagnetic state below 3.3 K.
📜 SIMILAR VOLUMES
To investigate possible nuclear magnetic ordering phenomena we have performed pulsed NMR measurements on ~5In in Auln 2 in magnetic fields of 7 mT < B < 114 mT and in the temperature range between 0.03 mK < T < 5 mK. With decreasing temperature we notice a dramatic shortening of the effective spin-s