Bibechana (Dec 2012)
Temperature dependence of Knight shift for the metals Zn and Al
Abstract
We have studied the variation of Knight Shift with temperature using pseudopotential technique for Zn and Al metals. Knight Shift occurs due to the hyperfine contact interaction between the nucleus and surrounding conduction electrons. The computed values of zinc is obtained using H-eigen values with ? = ?vt and ? = 1 gives K= 0.374 against Kexp = 0.337 at 419 °C and 0.391 against Kexp = 0.399 at 500 °C. For Aluminium with H-eigen values and ? = 1 gives K= 0.199 whereas Kexp = 0.164 at 360 °C and K= 0.209 at 400 °C for Kexp = 0.184 have been found. The computed values and experimental values are in good agreement for both metals. It reveals that the Knight Shift increases with increasing temperatures for Zn and Al. DOI: http://dx.doi.org/10.3126/bibechana.v9i0.7150 BIBECHANA 9 (2013) 33-37
