Muon Spin Spectroscopy evidence of the violation of Anderson condition in magnetite

Abstract

We present new muon spectroscopy data on a Fe${}_3$O${}_4$ single crystal, revealing different spin precession patterns in five distinct temperature ranges. A careful analysis of the local field and its straightforward modeling obtains surprisingly good agreement with experiments only if a very specific model of localized charges violating Anderson condition, and a correlated muon local dynamics are implemented. Muon evidence for fluctuations just above the Verwey temperature, precursor of the low temperature charge localized state, is provided.

4 pages, 5 figures, Additional material EPAPS.pdf (2 pages, 2 figure), submitted to Phys. Rev. Lett

References in corpus (3)

• Long Range Charge Ordering in Magnetite Below the Verwey Transition
• Electronic structure of charge-ordered Fe3O4 from calculated optical, megneto-optical Kerr effect, and O K-edge x-ray absorption spectra
• Staggered magnetization, critical behavior and weak ferromagnetic propert ies of LaMnO${}_3$ by muon spin rotation

Cited by in corpus (4)

• Toward the computational prediction of muon sites and interaction parameters
• First-principles determined charge and orbital interactions in Fe${}_3$O${}_4$
• Observation of a charge-neutral muon-polaron complex in antiferromagnetic Cr${}_2$O${}_3$
• Computational Prediction of Muon Stopping Sites Using Ab Initio Random Structure Searching (AIRSS)