Neutron Coherent-Scattering Amplitudes of Ga, In, As, and Sb

Neutron-diffraction data obtained from the compounds GaAs, GaSb, InAs, and InSb lead to the following neutron coherent-scattering amplitudes: $f_{\mathrm{Ga}}=(0.72\mathrm{}\pm 0.01)\times {10}^{-12\mathrm{}}$ cm, $f_{\mathrm{In}}=(0.39\mathrm{}\pm 0.01)\times {10}^{-12\mathrm{}}$ cm, $f_{\mathrm{As}}=(0.64\mathrm{}\pm 0.01)\times {10}^{-12\mathrm{}}$ cm, and $f_{\mathrm{Sb}}=(0.54\mathrm{}\pm 0.01)\times {10}^{-12\mathrm{}}$ cm. The data were also used to evaluate the Debye characteristic temperature for the compounds in use; the resulting Debye temperatures are 175°K for InSb, 240°K for InAs, 235°K for GaSb, and 247°K for GaAs. The neutron wavelength employed was 1.391 Å.