Magnetic properties of the itinerant ferromagnet under pressure studied by NMR
- Ames Lab., and Iowa State Univ., Ames, IA (United States)
- Kobe Univ. (Japan)
- Univ. of California, Davis, CA (United States)
139La nuclear magnetic resonance (NMR) measurements under pressure (p = 0 – 2.64 GPa) have been carried out to investigate the static and dynamic magnetic properties of the itinerant ferromagnet LaCrGe3. 139La -NMR spectra for all measured pressures in the ferromagnetically ordered state show a large shift due to the internal field induction |Bint| ~ 4 T at the La site produced by Cr ordered moments. The change in Bint by less than 5% with p up to 2.64 GPa indicates that the Cr 3d moments are robust under pressure. The temperature dependence of NMR shift and Bint suggest that the ferromagnetic order develops below ~50 K under higher pressures in a magnetic field of ~7.2 T. Based on the analysis of NMR data using the self-consistent-renormalization (SCR) theory, the spin fluctuations in the paramagnetic state well above TC are revealed to be three-dimensional ferromagnetic throughout the measured p region.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Japan Society for the Promotion of Science (JSPS)
- Grant/Contract Number:
- AC02-07CH11358; JP15H05882; JP15H05885; JP15K21732; JP18H04321
- OSTI ID:
- 1784521
- Report Number(s):
- IS-J-10,488; TRN: US2210202
- Journal Information:
- Physical Review B, Vol. 103, Issue 17; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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