Electron localization into spin-polaron state in MnSiPhysical Review B
AbstractStrong electron localization into a bound state has been found in both paramagnetic and ferromagnetic states of the transition metal compound MnSi by muon spin-rotation spectroscopy in magnetic fields up to 7 T and from 2 K to room temperature. This bound state, with a characteristic radius R≈0.4 nm and net spin S=24±2, is consistent with confinement of the electron’s wave function within roughly one lattice cell of MnSi and is suggested to be a spin polaron. Such spin polarons may form due to a strong exchange interaction between itinerant electrons and the magnetic electrons of Mn ions of the same 3d type; as such, they might affect the peculiar electronic and magnetic properties of MnSi.
Copyright OwnerAmerican Physical Society
Citation InformationVyacheslav G. Storchak, Jess H. Brewer, Roger L. Lichti, Thomas A. Lograsso, et al.. "Electron localization into spin-polaron state in MnSi" Physical Review B Vol. 83 Iss. 14 (2011) p. 140404(R)
Available at: http://works.bepress.com/d_l_schlagel/31/