Magnetic properties of the itinerant A- type antiferromagnet studied by and nuclear magnetic resonance
Abstract
59Co and 31P nuclear magnetic resonance (NMR) measurements in external magnetic and zero magnetic fields have been performed to investigate the magnetic properties of the A-type antiferromagnetic (AFM) CaCo2P2. NMR data, especially the nuclear spin lattice relaxation rates 1/T1 exhibiting a clear peak, provide clear evidence for the AFM transition at a Néel temperature of TN ~ 110 K. The magnetic fluctuations in the paramagnetic state were found to be three-dimensional ferromagnetic, suggesting ferromagnetic interaction between Co spins in the ab plane characterizes the spin correlations in the paramagnetic state. In the AFM state below TN, we have observed 59Co and 31P NMR signals under zero magnetic field. From 59Co NMR data, the ordered magnetic moments of Co are found to be in ab plane and are estimated to be 0.35 μB at 4.2 K. Furthermore, the external field dependence of 59Co NMR spectrum in the AFM state suggests a very weak magnetic anisotropy of the Co ions and also provides microscopic evidence of canting the Co-ordered moments along the external magnetic field directions. The magnetic state of the Co ions in CaCo2 P2 is well explained by the local-moment picture in the AFM state, although the system is metallic,more »
- Authors:
-
- Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy; Univ. of the Ryukyus, Okinawa (Japan). Dept. of Physics and Earth Sciences
- Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
- Univ. of the Ryukyus, Okinawa (Japan). Dept. of Physics and Earth Sciences
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Japan Society for the Promotion of Science KAKENHI
- OSTI Identifier:
- 1487220
- Alternate Identifier(s):
- OSTI ID: 1484062
- Report Number(s):
- IS-J-9826
Journal ID: ISSN 2469-9950; PRBMDO
- Grant/Contract Number:
- AC02-07CH11358; JP15K21732; JP15H05885; JP16H01078
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 18; 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
Higa, N., Ding, Q. -P., Teruya, A., Yogi, M., Hedo, M., Nakama, T., Ōnuki, Y., and Furukawa, Y. Magnetic properties of the itinerant A- type antiferromagnet CaCo2P2 studied by Co59 and P31 nuclear magnetic resonance. United States: N. p., 2018.
Web. doi:10.1103/PhysRevB.98.184433.
Higa, N., Ding, Q. -P., Teruya, A., Yogi, M., Hedo, M., Nakama, T., Ōnuki, Y., & Furukawa, Y. Magnetic properties of the itinerant A- type antiferromagnet CaCo2P2 studied by Co59 and P31 nuclear magnetic resonance. United States. https://doi.org/10.1103/PhysRevB.98.184433
Higa, N., Ding, Q. -P., Teruya, A., Yogi, M., Hedo, M., Nakama, T., Ōnuki, Y., and Furukawa, Y. Fri .
"Magnetic properties of the itinerant A- type antiferromagnet CaCo2P2 studied by Co59 and P31 nuclear magnetic resonance". United States. https://doi.org/10.1103/PhysRevB.98.184433. https://www.osti.gov/servlets/purl/1487220.
@article{osti_1487220,
title = {Magnetic properties of the itinerant A- type antiferromagnet CaCo2P2 studied by Co59 and P31 nuclear magnetic resonance},
author = {Higa, N. and Ding, Q. -P. and Teruya, A. and Yogi, M. and Hedo, M. and Nakama, T. and Ōnuki, Y. and Furukawa, Y.},
abstractNote = {59Co and 31P nuclear magnetic resonance (NMR) measurements in external magnetic and zero magnetic fields have been performed to investigate the magnetic properties of the A-type antiferromagnetic (AFM) CaCo2P2. NMR data, especially the nuclear spin lattice relaxation rates 1/T1 exhibiting a clear peak, provide clear evidence for the AFM transition at a Néel temperature of TN ~ 110 K. The magnetic fluctuations in the paramagnetic state were found to be three-dimensional ferromagnetic, suggesting ferromagnetic interaction between Co spins in the ab plane characterizes the spin correlations in the paramagnetic state. In the AFM state below TN, we have observed 59Co and 31P NMR signals under zero magnetic field. From 59Co NMR data, the ordered magnetic moments of Co are found to be in ab plane and are estimated to be 0.35 μB at 4.2 K. Furthermore, the external field dependence of 59Co NMR spectrum in the AFM state suggests a very weak magnetic anisotropy of the Co ions and also provides microscopic evidence of canting the Co-ordered moments along the external magnetic field directions. The magnetic state of the Co ions in CaCo2 P2 is well explained by the local-moment picture in the AFM state, although the system is metallic, as seen by 1/T1T = constant behavior.},
doi = {10.1103/PhysRevB.98.184433},
journal = {Physical Review B},
number = 18,
volume = 98,
place = {United States},
year = {Fri Nov 30 00:00:00 EST 2018},
month = {Fri Nov 30 00:00:00 EST 2018}
}
Web of Science
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