Electron localization into spin-polaron state in MnSi
| Title | Electron localization into spin-polaron state in MnSi |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Storchak VG, Brewer JH, Lichti RL, Lograsso TA, Schlagel DL |
| Journal Title | Physical Review B |
| Volume | 83 |
| Pages | 140404 |
| Date Published | 04/13 |
| ISBN Number | 1098-0121 |
| Accession Number | ISI:000289488900001 |
| Keywords | behavior, border, breakdown, ferromagnetism, fluctuations, metals, phase, pressure |
| Abstract | Strong 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 approximate to 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. |
| URL | <Go to ISI>://000289488900001 |
| DOI | 10.1103/PhysRevB.83.140404 |
| Alternate Journal | Phys Rev BPhys Rev B |
