Fig. 7.27 Streamlines and modulus of the J
B field. The graphical conventions are the same as in
Fig. 7.2. The plot planes are (left) parallel to a face at a distance z = 2 bohr; (right) parallel to the
plane of the H nuclei, at z = 2.62896 bohr. The maximum modulus (step between two consecutive
contours) in au is 0.15 (1:5 Â 10
À2 ) on the left, and 9:3 Â 10
À2 (1 Â 10
À3 ) on the right
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B field. The graphical conventions are the same as in
Fig. 7.2. The plot planes are (left) parallel to a face at a distance z = 2 bohr; (right) parallel to the
plane of the H nuclei, at z = 2.62896 bohr. The maximum modulus (step between two consecutive
contours) in au is 0.15 (1:5 Â 10
À2 ) on the left, and 9:3 Â 10
À2 (1 Â 10
À3 ) on the right
7 Topology of Quantum Mechanical Current Density …
203