Research/Sitter/MAGNDATA / 1.518_TbBe13.mcif

TbBe₁₃

MAGNDATA entry 1.518 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 8.5 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_A 222₁ BNS 20.37
Parent space group	F m 3 c No. 226
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 1/3] 1k
Cell	a 10.254 · b 10.254 · c 30.762 Å · α 90° · β 90° · γ 90°
Transition	8.5 K (−265 °C)
Measured at	4.2 K
Magnetic ions	Tb
Largest moment component	8.8 μ_B
Method	NPD

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 C_A 222₁ →

Atom sites · 26 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Be1_1	Be	0	0	0
Be1_2	Be	0.5	0.5	0.1667
Be1_3	Be	0	0	0.3333
Be1_4	Be	0.5	0	0.3333
Be2_1	Be	0	0.114	0.0587
Be2_2	Be	0	0.114	0.9413
Be2_3	Be	0.176	0	0.038
Be2_4	Be	0.176	0	0.962
Be2_5	Be	0.114	0.176	0
Be2_6	Be	0.886	0.176	0
Be2_7	Be	0.614	0.5	0.108
Be2_8	Be	0.614	0.5	0.2253
Be2_9	Be	0.5	0.676	0.1287
Be2_10	Be	0.5	0.676	0.2047
Be2_11	Be	0.676	0.614	0.1667
Be2_12	Be	0.676	0.386	0.1667
Be2_13	Be	0	0.114	0.392
Be2_14	Be	0.176	0	0.3713
Be2_15	Be	0.114	0.176	0.3333
Be2_16	Be	0.614	0	0.2747
Be2_17	Be	0.5	0.176	0.2953
Be2_18	Be	0.676	0.114	0.3333
Tb1_1	Tb	0.25	0.25	0.0833	8.8	0	0	8.8
Tb1_2	Tb	0.75	0.75	0.25	0.54	8.78	0	8.7966
Tb1_3	Tb	0.25	0.75	0.25	0.54	8.78	0	8.7966
Tb1_4	Tb	0.75	0.25	0.0833	8.8	0	0	8.8

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

Source

F. Vigneron et al. J. Physique (1980) · doi:10.1051/jphys:01980004102012300

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.518_TbBe13.mcif from MAGNDATA · entry page

sha256 of this copy: 8d02f4d6caf95fbe14074771737da3766f0e51dc602391ad0ed574c04f24dc06
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.518_TbBe13.mcif.