Research/Sitter/MAGNDATA / 0.1183_NdBaMn2O6.mcif

NdBaMn₂⁢O₆

MAGNDATA entry 0.1183 · source

d-wave altermagnet

No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion. d-wave: the splitting changes sign twice around the Fermi surface (2 nodal planes).

Spin group ²m¹m²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 235 K (−38 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 21 a m BNS 26.1.168
Point group	mm21
Parent space group	P 21 a m No. 26
Spins	collinear · 2 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 11.06 · b 5.53 · c 15.177 Å · α 90° · β 90° · γ 90°
Transition	235 K (−38 °C)
Measured at	100 K
Magnetic ions	Mn
Largest moment component	3.3 μ_B
Method	SND

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 a m →

Atom sites · 24 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Nd1	Nd	0.0053	0.4994	0
Nd2	Nd	0.0067	0.5014	0.5
Nd3	Nd	0.2486	0.9974	0
Nd4	Nd	0.2475	0.0069	0.5
Ba1	Ba	0.0035	0.505	0.2509
Ba2	Ba	0.2519	0.002	0.2513
Mn1	Mn	0.0013	0.0017	0.1262	0	3.3	0	3.3
Mn2	Mn	0.0016	0.008	0.6229	0	2.5	0	2.5
Mn3	Mn	0.2507	0.5032	0.1223	0	2.9	0	2.9
Mn4	Mn	0.2518	0.4992	0.6216	0	2.9	0	2.9
O1	O	0.0196	0.0014	0
O2	O	0.022	0.0476	0.5
O3	O	0.2319	0.5202	0
O4	O	0.2335	0.4798	0.5
O5	O	0.9925	0.0018	0.2512
O6	O	0.2587	0.5027	0.2487
O7	O	0.1291	0.26	0.1193
O8	O	0.1251	0.2628	0.6246
O9	O	0.3721	0.2604	0.1078
O10	O	0.3826	0.229	0.6055
O11	O	0.1248	0.7522	0.1216
O12	O	0.1225	0.7698	0.6149
O13	O	0.3762	0.7492	0.1076
O14	O	0.3748	0.737	0.6089

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

S. Yamada et al. Phys. Rev. B (2026) · doi:10.1103/y4sd-sl69

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1183_NdBaMn2O6.mcif from MAGNDATA · entry page

sha256 of this copy: 78fe34493caccf921bcbfc4e64abb4b9bb50f7e431ae96f78c06e13939fc67f3
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1183_NdBaMn2O6.mcif.

NdBaMn2⁢O6

Symmetry

Source

Original file

NdBaMn₂⁢O₆