Anisotropic phonon density of states in FePt nanoparticles with<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>L</mml:mi><mml:msub><mml:mn>1</mml:mn><mml:mn>0</mml:mn></mml:msub></mml:mrow></mml:math>structure
The phonon states of iron atoms in the easy-axis aligned $L{1}_{0}\text{-FePt}$ nanoparticles were investigated using $^{57}\text{F}\text{e}$ nuclear-resonant inelastic scatteri...