Ultrahigh-pressure study on the magnetic state of iron hydride using an energy domain synchrotron radiation Fe Mossbauer spectrometer

摘要

Pressure induced magnetic phase transition of iron hydride was investigated with an in-situ Mossbauer spectrometer using synchrotron radiation (SR). The spectrometer is composed of a high resolution monochromator, an X-ray focusing device, a variable frequency nuclear monochromator and a diamond anvil cell. The optical system, advantages of the spectrometer and the observed high pressure magnetic phases of iron hydride are described.