Electron-Magnetic, Lattice and Magnon Grüneisen Parameters of Iron and Nickel: Results from Thermal Expansion Measurements and Model Calculations

Abstract

Thermal expansion measurements have been performed on nickel and iron using a three terminal capacitance dilatometer with a new cell design and a theoretical model has been developed to obtain the electron-magnetic, lattice and magnon contributions to thermal expansion and corresponding Grüneisen parameters.