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

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LaCa2Fe3O9 (#1.0.30)

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Magnetic structure with all atoms

Magnetic structure with only magnetic atoms

Reference: A.M. Arevalo-Lopez, Y. Hosaka, H. Guo, F.D. Romero, T. Saito, J.P. Attfield and Y. Shimakawa, Physical Review B (2018) 97 024421.
DOI: 10.1103/physrevb.97.024421
Atomic positions from: same reference

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

Transition Temperature: 230 K
Experiment Temperature: 210 K

Lattice parameters of the magnetic unit cell:
22.98300 16.26300 5.41900 90.00 90.00 90.00
Transformation from parent structure: (b,-3a,c;-1/4,1/4,0)
    [View matrix form]

BNS Magnetic Space Group: Pmn21 (#31.123) (standard setting)
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Transformation to a standard setting: (a,b,c;0,0,0)
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Systematic absences for this Magnetic Space Group via

Magnetic Point Group: mm2 (7.1.20)
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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

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LabelAtom typexyzMultiplicitySymmetry constraints on MMxMyMz|M|

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

Active Irreps:                                           
Irrep decomposition via

labeldim. full irrepdim. small irrepdirectionactionnumber of modespresence
mSM1 2 1 special primary 9
mSM3 2 1 special primary 9
mGM1+ 1 1 secondary 6 no
mGM2- 1 1 secondary 3 no

Comments (symmetry):

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