MAGNDATA - Collection of Magnetic Structures

MAGNDATA

Collection of Magnetic Structures

MAGNDATA: A Collection of magnetic structures with portable cif-type files

Magnetic structure with all atoms

Magnetic structure with only magnetic atoms

Reference: D. Gignoux, J. Rossat-Mignod and F. Tcheou, Physica Status Solidi (a) (1972) 14 483-488.
DOI: 10.1002/pssa.2210140213
Atomic positions from: ICSD #105428

Parent space group (paramagnetic phase): Pnma (#62)
Propagation vector: k1 (0, 0, 0)

Transition Temperature: 7 K
Experiment Temperature: 1.3 K

Lattice parameters of the magnetic unit cell:
6.96000 4.11000 5.40000 90.00 90.00 90.00
Transformation from parent structure: (a,b,c;0,0,0)
    [View matrix form]

BNS Magnetic Space Group: Pn'm'a (#62.446) (standard setting)
    [View symmetry operations]
Transformation to a standard setting: (a,b,c;0,0,0)
    [View matrix form]
Systematic absences for this Magnetic Space Group via

Magnetic Point Group: m'm'm (8.4.27)
    [View symmetry operations]
Symmetry-adapted form of material tensors via
Symmetry-adapted form of material tensors for domain-related equivalent structures via

Positions and magnetic moments of symmetry independent atoms:
From now on, magnetic atoms are in boldface and colored in red. Magnetic moments are expressed in units of μB

     [Show only magnetic atoms]                                             Use MVISUALIZE to:
     [Show all the atoms]

Label	Atom type	x	y	z	Multiplicity	Symmetry constraints on M	M_x	M_y	M_z	\|M\|
Ni1	Ni	0.04000	0.25000	0.63000	4	m_x,0,m_z	0.0	0.0	0.0	0.00
Tm1	Tm	0.17700	0.25000	0.13400	4	m_x,0,m_z	3.63	0.0	4.65	5.90

[Show all magnetic atoms in unit cell and their moment relations]

Active Irreps:

label	dim. small irrep	dim. full irrep	action	number of modes
mGM2+	1	1	primary	2

Comments:

NPD
Positional structure from a determination at 77K
FM along z
Tm1 moment modulus: 5.9(5)
Tm1 moment components given here with non-significant digits to yield the reported modulus

Comments (symmetry):

1k magnetic structure
k-maximal magnetic symmetry (8 possible)
1-dim irrep as primary

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