Table of Magnetic Space Group Symbols

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Table of Magnetic Space Group Symbols

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Pmm2 [#25.57] (Type: 1 -- Type I (Fedorov))

[OG: Pmm2 #25.1.155]

Wyckoff Positions of Group 25.57 (Pmm2)

Multiplicity

Wyckoff
letter

Coordinates

4

i

(x,y,z \| m_x,m_y,m_z)	(-x,-y,z \| -m_x,-m_y,m_z)	(-x,y,z \| m_x,-m_y,-m_z)
(x,-y,z \| -m_x,m_y,-m_z)

2

h

(1/2,y,z | m_x,0,0)

(1/2,-y,z | -m_x,0,0)

2

g

(0,y,z | m_x,0,0)

(0,-y,z | -m_x,0,0)

2

f

(x,1/2,z | 0,m_y,0)

(-x,1/2,z | 0,-m_y,0)

2

e

(x,0,z | 0,m_y,0)

(-x,0,z | 0,-m_y,0)

1

d

(1/2,1/2,z | 0,0,0)

1

c

(1/2,0,z | 0,0,0)

1

b

(0,1/2,z | 0,0,0)

1

a

(0,0,z | 0,0,0)

Site Symmetries of the Wyckoff Positions

WP	Representative	PG
1a	(0,0,z \| 0,0,0)	mm2
1b	(0,1/2,z \| 0,0,0)	mm2
1c	(1/2,0,z \| 0,0,0)	mm2
1d	(1/2,1/2,z \| 0,0,0)	mm2
2e	(x,0,z \| 0,m_y,0)	m
2f	(x,1/2,z \| 0,m_y,0)	m
2g	(0,y,z \| m_x,0,0)	m
2h	(1/2,y,z \| m_x,0,0)	m
4i	(x,y,z \| m_x,m_y,m_z)	1

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