New limits on the ordered moments in alpha-Pu and Ga-stabilized delta-Pu
R. H. Heffner, G. D. Morris, M. J. Fluss, B. Chung, D. E. MacLaughlin,, L. Shu, J. E. Anderson
TL;DR
This study uses muon spin relaxation to establish the first upper limits on magnetic moments in alpha-Pu and Ga-stabilized delta-Pu, finding no detectable magnetic order down to very low levels.
Contribution
First muon spin relaxation measurements on elemental plutonium, providing the most stringent upper limits on magnetic moments in alpha- and delta-stabilized Pu.
Findings
Upper limit of 0.001 Bohr magnetons for magnetic moments at 4 K
No detectable magnetic order observed in the measurements
Sets new constraints on magnetic properties of plutonium phases
Abstract
We present the first muon spin relaxation measurements ever performed on elemental Pu, and set the most stringent upper limits to date on the magnitude of the ordered moment in alpha-Pu and delta-stabilized Pu (alloyed with 4.3 at. % Ga). Assuming a nominal hyperfine coupling field of 1 kOe per Bohr magneton we set an upper limit of 0.001 Bohr magnetons for both materials at T = 4 K.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.