Compton profile of polycrystalline tungsten

Compton Scattering from Heavier Metals

“…The agreement was not good with either band-structure or RFA calculations. A careful analysis of the various corrections has revealed that in this work the multiple scattering correction was somewhat underestimated owing to a programming error [32]. When incorporated correctly, these data showed closer agreement with the band structure calculation than reported before, but some differences, between 1 and 2 a.u., remained.…”

“…As regards experiments, Mittal et al [31] have measured the Compton profile of polycrystalline W using 59.54 keV y-rays and compared their data with the above calculations. They also reported Compton profiles calculated on the basis of the RFA model.…”

Compton profile study of polycrystalline ytterbium

“…Further, it is seen that if we choose the higher values of p max , then the experimental value becomes significantly high. It is understandable because the p 2 weighting of high-momentum tails magnifies the systematic errors alarmingly as reported by other workers also while calculating the cohesive energy from the experimental Compton profile [25,26]. Our experimental E cohesive suggests that the Compton profile measurements can also predict the cohesive energy of rare-earth metals; a limitation may be the proper choice of p max in the integral given in Eq.…”

How to estimate isotropic distributions and mean values in crystalline solids

“…(3) has been used extensively in the theory of thermodynamic properties of crystals with cubic symmetry [8][9][10], the sum of plane waves over the BZ [11] as well as in studies of electronic properties via one-dimensional angular correlation of annihilation radiation [12][13][14][15], Compton scattering [16][17][18][19][20][21][22][23][24][25] or positron Doppler broadening spectra [26]. In the latter case Eq.…”

“…For example, in Refs. [17][18][19][20]25] Compton profiles along three high symmetry directions (HSDs) were calculated and then Houston's formula was applied to compare the theory with a measurement made on a polycrystalline sample. For inexplicable reasons, in almost all papers the formula expressed in (3) or its extended versions (including also 3-HSD) [9][10][11] is applied instead of using special directions (SDs) which essentially increases the accuracy to which f 0 (p) can be estimated.…”