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BPARAM = [real]
Default: BPARAM = 6.3
Description: The tag BPARAM specifies the value of the parameter in the kernel of the non-local rVV10 correlation functional.
Note that BPARAM should be set to 15.7 for the SCAN+rVV10 functional[1].
CPARAM, Nonlocal vdW-DF functionals