Research/Sitter/MAGNDATA / 2.117_NdB4.mcif

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Spin lattice of NdB4Spin lattice of NdB4

NdB4

MAGNDATA entry 2.117 · source
noncoplanar magnet
Spins pointing in three dimensions, not confined to a plane.
ordered ≤ 17.5 K (−256 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupP 21′/c BNS 14.77
Point group2′/m
Parent space groupP 4/m b m No. 127
Spinsnoncoplanar · net moment 0 μB per cell
Propagation[0 0 0] · [1/5 0 -2/5] 2k
Cella 14.25359 · b 7.2139 · c 10.91818 Å · α 90° · β 108.24° · γ 90°
Transition17.5 K (−256 °C)
Measured at1.5 K
Magnetic ionsNd
Largest moment component2.27867 μB
MethodNPD

Symmetry

Stereogram of the magnetic point group: each operation applied to one direction. Filled = upper hemisphere, ring = lower; red operations include time reversal. Lines are mirrors; polygons are 2/3/4/6-fold axes; the centre ring is inversion.

Every structure in P 21′/c →
Atom sites · 25 sites · CSV
siteelementxyzmambmc|m| (μB)
Nd1Nd0.02720.6820.79082.27871.1334−0.03012.5536
Nd2Nd0.22720.6820.59080.43091.13341.38531.7366
Nd3Nd0.42720.6820.39082.2781.1334−0.02962.5529
Nd4Nd0.62720.6820.19082.2781.1334−0.02962.5529
Nd5Nd0.82720.682−0.00920.43091.13341.38531.7366
B1B−0.05920.50.5592
B2B0.14080.50.3592
B3B0.34080.50.1592
B4B0.54080.5−0.0408
B5B0.74080.50.7592
B6B0.0349−0.08730.5524
B7B0.2349−0.08730.3524
B8B0.4349−0.08730.1524
B9B0.6349−0.0873−0.0476
B10B0.8349−0.08730.7524
B11B0.07020.46130.6054
B12B0.27020.46130.4054
B13B0.47020.46130.2054
B14B0.67020.46130.0054
B15B0.87020.46130.8054
B16B0.18450.17560.7768
B17B0.38450.17560.5768
B18B0.58450.17560.3768
B19B0.78450.17560.1768
B20B−0.01550.1756−0.0232

Moment components are along the crystal axes a, b, c (μB), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

D.D. Khalyavin et al. PHYSICAL REVIEW B (2024) · doi:10.1103/PhysRevB.109.L220411

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.117_NdB4.mcif from MAGNDATA · entry page

sha256 of this copy: 227ecb29ad9e721f1bd838807de8f97a56fd1f285c9b4e254fe30df7c06899c0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.117_NdB4.mcif.