Itinerant G-type antiferromagnetic order in
Journal Article
·
· Physical Review B
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Univ. of Missouri, Columbia, MO (United States)
Here, neutron-diffraction and magnetic susceptibility studies of polycrystalline SrCr2As2 reveal that this compound is an itinerant G-type antiferromagnet below the Néel temperature TN = 590(5) K with the Cr magnetic moments aligned along the tetragonal c axis. The system remains tetragonal to the lowest measured temperature (~12 K). The lattice parameter ratio c/a and the magnetic moment saturate at about the same temperature below ~200 K, indicating a possible magnetoelastic coupling. The ordered moment μ = 1.9(1)μB/Cr, measured at T = 12 K, is significantly reduced compared to its localized value (4μB/Cr) due to the itinerant character brought about by hybridization between the Cr 3d and As 4p orbitals.
- Research Organization:
- Ames Lab. (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1374740
- Alternate ID(s):
- OSTI ID: 1368612
- Report Number(s):
- IS-J--9412
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 1 Vol. 96; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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