P-V-T equation of state of ε-FeOOH to 11 GPa and 700 K

抄録

P-V-T equation of state for epsilon-FeOOH was determined from in situ X-ray diffraction experiment at pressures to 11 GPa and temperatures to 700 K. A fit to the second-order Birch-Murnaghan equation of state yielded isothermal bulk modulus K_{0, 300K} = 143(8) GPa, the volumetric thermal expansion coefficient 2×10^-5 K^-1, and the temperature dependence of bulk modulus (dK/dT)_P = -0.02 GPa/K.