AI Article Synopsis
- Researchers used muon spin rotation and Na nuclear magnetic resonance methods to study the magnetic order in the NaOsO antiferromagnetic phase and how it changes with temperature near the Néel temperature.
- They conducted muon spin relaxation measurements around 30 K, where electrical resistivity anomalies were linked to changes in the Os magnetic moment due to spin fluctuations.
- The findings indicate that there is no significant change in the frequency of spin fluctuations or a reduction in the localized Os magnetic moment below 50 K, as shown by stable local magnetic fields detected by the muons.
Article Abstract
We have used muon spin rotation and relaxation (SR) andNa nuclear magnetic resonance (NMR) spectroscopic methods in the NaOsOantiferromagnetic phase to determine the temperature evolution of the magnetic order parameter and the role of the magnetic fluctuations at the Néel temperature. Additionally, we performed muon spin relaxation measurements in the vicinity of= 30 K, where the appearance of an anomaly in the electrical resistivity was suggested to be due to a progressive reduction of the Os magnetic moment associated with spin fluctuation. Our measurements suggest the absence of prominent change in the spin fluctuations frequency at, within the muon probing time scale and the absence of a reduction of the localized Os magnetic moment reflected by the stability within few permille of the local magnetic field strength sensed by the muons below 50 K.
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| http://dx.doi.org/10.1088/1361-648X/ac06eb | DOI Listing |
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