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: B. Malaman, G. Venturini, L. Pontonnier, D. Fruchart, Journal of Magnetism and Magnetic Materials (1990) 86 349 - 362
DOI: 10.1016/0304-8853(90)90143-E
Atomic positions from: ICSD #643350

Parent space group (paramagnetic phase): Cmcm (#63)
Propagation vector: k1 (1, 0, 0)

Transition Temperature: 34(2) K
Experiment Temperature: 2 K

Lattice parameters of the magnetic unit cell:
4.09400 17.55300 4.02800 90.00 90.00 90.00
Transformation from parent structure: (a,b,c;0,0,0)
    [View matrix form]

BNS Magnetic Space Group: P_Bnna (#52.318) (non-standard)
    [View symmetry operations]
Transformation to a standard setting: (b,c,a;1/4,1/4,0)
    [View matrix form]
Systematic absences for this Magnetic Space Group via

Magnetic Point Group: mmm.1' (8.2.25)
    [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\|
Pr1	Pr	0.00000	0.10100	0.25000	4	0,m_y,0	0.0	2.35(10)	0.0	2.35
Mn1	Mn	0.00000	0.75000	0.25000	4	0,m_y,0	0.0	2.04(4)	0.0	2.04

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

Active Irreps:

label	dim. small irrep	dim. full irrep	action	number of modes
mY1-	1	1	primary	2

Comments:

NPD
Position structure from a determination at 300K
Above 35, up to 434K, a FM with only Mn moments aligned along b exists.

Comments (symmetry):

1k magnetic structure
k-maximal magnetic symmetry
1-dim irrep

Bilbao Crystallographic Server
https://www.cryst.ehu.es

For comments, please mail to
administrador.bcs@ehu.eus