U and J parameters in LDA+U
Posted: Thu Jul 20, 2006 2:20 pm
Hello,
Could somenone tell me in some detail how can I calculate U and J parameters in the LDA+U method from DFT calculations in VASP for UO2. I found in one of the posts that they had used a value of 4.5 for U and .91 for J. Can I calculate U from J ?
Please suggest.
Thank You,
Pankaj
Could somenone tell me in some detail how can I calculate U and J parameters in the LDA+U method from DFT calculations in VASP for UO2. I found in one of the posts that they had used a value of 4.5 for U and .91 for J. Can I calculate U from J ?
Please suggest.
Thank You,
Pankaj