Magnetic fluctuations in the itinerant ferromagnet studied by NMR
Abstract
is an itinerant ferromagnet with a Curie temperature of TC = 85 K and exhibits an avoided ferromagnetic quantum critical point under pressure through a modulated antiferromagnetic phase as well as tricritical wing structure in its temperature-pressure-magnetic field (T – p – H) phase diagram. In order to understand the static and dynamical magnetic properties of , we carried out nuclear magnetic resonance (NMR) measurements. Based on the analysis of NMR data, using the self-consistent-renormalization (SCR) theory, the spin fluctuations in the paramagnetic state are revealed to be isotropic ferromagnetic and three dimensional (3D) in nature. Furthermore, the system is found to follow the generalized Rhodes-Wohlfarth relation which is expected in 3D itinerant ferromagnetic systems. As compared to other similar itinerant ferromagnets, the Cr 3d electrons and their spin fluctuations are characterized to have a relatively high degree of localization in real space.
- Authors:
-
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Kobe Univ. (Japan)
- Univ. of California, Davis, CA (United States)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
- OSTI Identifier:
- 1526273
- Alternate Identifier(s):
- OSTI ID: 1546298
- Report Number(s):
- IS-J-9956
Journal ID: ISSN 2469-9950; PRBMDO
- Grant/Contract Number:
- AC02-07CH11358; JP15H05882; JP15H05885; JP15K21732; JP18H04321 (J-Physics)
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 21; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Rana, K., Kotegawa, H., Ullah, R. R., Harvey, J. S., Bud'ko, S. L., Canfield, P. C., Tou, H., Taufour, V., and Furukawa, Y. Magnetic fluctuations in the itinerant ferromagnet LaCrGe3 studied by La139 NMR. United States: N. p., 2019.
Web. doi:10.1103/PhysRevB.99.214417.
Rana, K., Kotegawa, H., Ullah, R. R., Harvey, J. S., Bud'ko, S. L., Canfield, P. C., Tou, H., Taufour, V., & Furukawa, Y. Magnetic fluctuations in the itinerant ferromagnet LaCrGe3 studied by La139 NMR. United States. https://doi.org/10.1103/PhysRevB.99.214417
Rana, K., Kotegawa, H., Ullah, R. R., Harvey, J. S., Bud'ko, S. L., Canfield, P. C., Tou, H., Taufour, V., and Furukawa, Y. Mon .
"Magnetic fluctuations in the itinerant ferromagnet LaCrGe3 studied by La139 NMR". United States. https://doi.org/10.1103/PhysRevB.99.214417. https://www.osti.gov/servlets/purl/1526273.
@article{osti_1526273,
title = {Magnetic fluctuations in the itinerant ferromagnet LaCrGe3 studied by La139 NMR},
author = {Rana, K. and Kotegawa, H. and Ullah, R. R. and Harvey, J. S. and Bud'ko, S. L. and Canfield, P. C. and Tou, H. and Taufour, V. and Furukawa, Y.},
abstractNote = {LaCrGe3 is an itinerant ferromagnet with a Curie temperature of TC = 85 K and exhibits an avoided ferromagnetic quantum critical point under pressure through a modulated antiferromagnetic phase as well as tricritical wing structure in its temperature-pressure-magnetic field (T – p – H) phase diagram. In order to understand the static and dynamical magnetic properties of LaCrGe3, we carried out La139 nuclear magnetic resonance (NMR) measurements. Based on the analysis of NMR data, using the self-consistent-renormalization (SCR) theory, the spin fluctuations in the paramagnetic state are revealed to be isotropic ferromagnetic and three dimensional (3D) in nature. Furthermore, the system is found to follow the generalized Rhodes-Wohlfarth relation which is expected in 3D itinerant ferromagnetic systems. As compared to other similar itinerant ferromagnets, the Cr 3d electrons and their spin fluctuations are characterized to have a relatively high degree of localization in real space.},
doi = {10.1103/PhysRevB.99.214417},
journal = {Physical Review B},
number = 21,
volume = 99,
place = {United States},
year = {2019},
month = {6}
}
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