Surface Spin-flip Transition of Fe3BO6 Crystal Observed by Synchrotron-based Conversion Electron Mössbauer Spectroscopy.

The temperature dependence of the spin-flip transition (SFT) on the Fe₃BO₆ crystal surface was studied by synchrotron-based conversion electron Mössbauer spectroscopy. Linearly polarized, highly directional synchrotron Mössbauer γ-rays enabled spin-orientation-sensitive measurements. Moreover, microscopic analysis using focused γ-rays reduced the influence of sample surface non-uniformity on the spectrum. The results revealed that the temperature dependence of the SFT within approximately 100 nm below the surface was bulk-like, in contrast to previously reported findings. [ABSTRACT FROM AUTHOR]