Observation of Oscillatory Magnetic Order in the Antiferromagnetic Superconductor HoNi2B2C
T. E. Grigereit, J. W. Lynn, Q. Huang, A. Santoro, R. J. Cava, J. J. Krajewski, W. F. Peck, Jr.
DOI 10.1103/PhysRevLett.73.2756 · Physical Review Letters
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Abstract
The nature of the holmium order in the reentrant superconductor (Tc=7.5 K) HoNi2B2C is revealed by neutron scattering. Upon cooling a transversely polarized oscillatory magnetic state is formed (TM≈8 K), characterized by a wave vector (0,0,qc) where qc≈0.05 Å−1 is only weakly dependent on temperature and field. At the reentrant superconducting transition (∼5 K) the amplitude of the oscillatory state abruptly decreases in favor of a commensurate antiferromagnet, whereby superconductivity is restored and coexists with antiferromagnetism at low temperatures.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| HoNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.5 | Pressure not reported | onset |
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