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A compton profile study of tantalum |
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| Authors: | B K Sharma B L Ahuja Usha Mittal S Perkkiö T Paakkari S Manninen |
| Institution: | (1) Department of Physics, University of Rajasthan, 302 004 Jaipur, India;(2) Department of Physics, M Regional Engineering College, 302 017 Jaipur, India;(3) Department of Physics, University of Helsinki, Siltavuorenpenger 20D, Helsinki, Finland |
| Abstract: | We report the results of Compton profile study on polycrystalline tantalum. Measurements have been made using 59.54 keV gamma-rays. The results are compared with the APW band structure calculations of Papanicolaouet al and other available data. In contrast to the work of Changet al the overall agreement is better with the APW band structure which worsens on incorporating the electron correlation correction. Estimates of the errors due to the contribution from bremsstrahlung, non-validity of impulse-approximation and anomalous dispersion are also briefly discussed. |
| Keywords: | Compton profile electron momentum density APW band structure calculations electron correlation effects |
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