Tipping the magnetic instability in paramagnetic by Fe impurities [Tipping the magnetic instability in paramagnetic by modest Fe substitution]
Journal Article
·
· Physical Review B
- Michigan State Univ., East Lansing, MI (United States)
- Tulane Univ., New Orleans, LA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
We report the magnetic and electronic properties of the bilayer ruthenate Sr3Ru2O7 upon Fe substitution for Ru. We find that Sr3(Ru1-xFex)2O7 shows spin-glass-like phase below 4 K for x = 0.01 and commensurate E-type antiferromagnetically ordered insulating ground state characterized by the propagation vector qc = (0.25 0.25 0) for x ≥ 0.03, in contrast to the paramagnetic metallic state in the parent compound with strong spin fluctuations occurring at wave vectors q = (0.09 0 0) and (0.25 0 0). The observed antiferromagnetic ordering is quasitwo-dimensional with very short correlation length along the c axis, a feature similar to the Mndoped Sr3Ru2O7. Lastly, our results suggest that this ordered ground state is associated with the intrinsic magnetic instability in the pristine compound, which can be readily tipped by the local magnetic coupling between the 3d orbitals of the magnetic dopants and Ru 4d orbitals.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Experimental Program to Stimulate Competitive Research (EPSCoR)
- Grant/Contract Number:
- AC02-06CH11357; SC0012432
- OSTI ID:
- 1363902
- Alternate ID(s):
- OSTI ID: 1357936
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 17 Vol. 95; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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