Logical operation on two columns of a dataframe

Yes there is a better way! Just use the & element-wise logical and operator:

d.bar & d.foo

0     True
1    False
2    False
dtype: bool

Also, there exists another one you could just multiply for AND or add for OR. Without the conversion and extra comparison as you had done.

AND operation:

d.foo * d.bar

OR operation:

d.foo + d.bar