Tables for
Volume A
Space-group symmetry
Edited by M. I. Aroyo

International Tables for Crystallography (2016). Vol. A, ch. 3.6, p. 853

Section Magnetic group type serial number

D. B. Litvina*

aDepartment of Physics, The Eberly College of Science, Penn State – Berks Campus, The Pennsylvania State University, PO Box 7009, Reading, PA 19610–6009, USA
Correspondence e-mail: Magnetic group type serial number

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For each set of magnetic group types, one-, two- and three-dimensional crystallographic magnetic point groups, magnetic subperiodic groups and magnetic space groups, a separate numbering system is used. A three-part composite number N1.N2.N3 is given in the first column, see Table[link]. N1 is a sequential number for the group type to which [{\cal F}] belongs. N2 is a sequential numbering of the magnetic group types of the reduced magnetic superfamily of [{\cal F}]. Group types [{\cal F}] always have the assigned number N1.1.N3, and group types [\ispecialfonts{\cal F}\!{\sfi 1}'] the assigned number N1.2.N3. N3 is a global sequential numbering for each set of magnetic group types. The sequential numbering N1 for subperiodic groups and space groups follows the numbering in IT E and IT A, respectively.

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