Antiferromagnetism and Its Relation to the Superconducting Phases of UPt3

E. D. Isaacs; P. Zschack; C. L. Broholm; C. Burns; G. Aeppli; A. P. Ramirez; T. T. M. Palstra; R. W. Erwin; N. Stücheli; E. Bucher

doi:10.1103/PhysRevLett.75.1178

Antiferromagnetism and Its Relation to the Superconducting Phases of UPt3

E. D. Isaacs, P. Zschack, C. L. Broholm, C. Burns, G. Aeppli, A. P. Ramirez, T. T. M. Palstra, R. W. Erwin, N. Stücheli, E. Bucher

DOI 10.1103/PhysRevLett.75.1178 · Physical Review Letters

T1

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Abstract

Using magnetic x-ray and neutron diffraction in UPt3, we find that a suppression of the antiferromagnetic scattering intensity in the superconducting phase is due to a reduction in the magnitude of the staggered moment with no change in symmetry. The existence of the suppression as well as the magnetic correlation lengths are not affected by the presence or absence of a visible splitting in the superconducting transition. The simplest models wherein antiferromagnetic order provides the symmetry-breaking field for the splitting do not provide a compete explanation of our results.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.4	Pressure not reported	midpoint
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.46	Pressure not reported	onset
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.51	Pressure not reported	onset