Table 1 The structural prototypes of the 2DFM materials, and the chemical formula, space group of each compound.

From: High-throughput computation and structure prototype analysis for two-dimensional ferromagnetic materials

Prototype	Chemical formula	Space group	T_C	M	Chemical formula	Space group	T_C	M
FeI₂-Fe (1 L)	CrO₂	P-3m1	227	2.0	FeCl₂	P-6m2	199	4.0
	FeBr₂	P-6m2	148	4.0	FeTe₂	P-6m2	144	1.8
	FeO₂	P-3m1	107	2.0	CrClI	P3m1	101	4.0
	FeI₂	P-6m2	95	4.0	CoO₂	P-3m1	91	1.0
	VSe₂	P-6m2	78	1.0	FeBr₂	P-3m1	77	4.0
	VS₂	P-6m2	70	1.0	VSSe	P3m1	69	1.0
	VTe₂	P-6m2	60	1.0	VSeTe	P3m1	57	1.0
	CrBrI	P3m1	52	4.0	RhI₂	P-3m1	47	1.0
	VSTe	P3m1	37	1.1	FeI₂	P-3m1	26	4.0
	ScCl₂	P-6m2	19	1.0	ScBr₂	P-6m2	17	1.0
	VS₂	P-3m1	16	0.5	ScI₂	P-6m2	15	1.0
	TmI₂	P-3m1	14	0.9	VSSe	P3m1	12	0.7
	NbSeTe	P3m1	12	0.8	NbSTe	P3m1	10	0.7
	NbTe₂	P-6m2	8	0.9	YBr₂	P-6m2	3	1.0
	YCl₂	P-6m2	3	1.0
CrI₃-Cr (1 L)	V₂Cl₆	P-31m	60	2.0	V₂Br₆	P-31m	60	2.0
	V₂I₆	P-31m	60	2.0	Ru₂Cl₆	P-31m	58	1.0
	Os₂Cl₆	P-31m	56	1.0	Ti₂Cl₆	P-62m	42	1.0
	Ti₂Br₆	P-62m	40	1.0	Re₂Br₆	P-31m	40	2.0
	Ru₂Br₆	P-31m	30	1.0	Ni₂I₆	P-31m	26	1.0
	CrI₃	P-31m	26	3.0	Ni₂Br₆	P-31m	20	1.0
	Os₂I₆	P-31m	11	1.0	Cr₂Ge₂Te₆	P-31m	11	3.0
VO₂-V (1 L)	Ni₂I₂	P4/nmm	166	1.0	VO₂	P-4m2	152	1.0
	Ni₂O₂	P4/mmm	127	1.2	Mn₂Se₂	P4/nmm	104	1.4
	Ni₂Se₂	P4/mmm	103	0.6	Mn₂S₂	P4/nmm	87	1.3
	Ni₂S₂	P4/mmm	87	0.5	Ni₂Te₂	P4/mmm	83	0.6
	CrI₂	P-4m2	75	4.0	Mn₂Te₂	P4/nmm	65	1.5
	Co₂S₂	P4/nmm	59	0.5	Cr₂Se₂	P4/nmm	43	0.3
	Cr₂S₂	P4/nmm	41	0.4	Rh₂S₂	P4/nmm	35	0.3
	NiBr₂	P-4m2	29	2.0
Co₂F₂-Co (2 L)	Co₂F₂	P-3m1	542	2.4	Ni₂I₂	P-3m1	137	1.0
	ErHCl	P-3m1	61	2.6	YbOCl	P-3m1	33	1.0
	Sc₂Cl₂	P-3m1	11	0.8	Sc₂Br₂	P-3m1	11	0.8
Cr₂I₂S₂-Cr (2 L)	Mn₂I₂O₂	Pmmn	127	4.0	Mn₂I₂N₂	Pmmn	117	3.0
	V₂Br₂O₂	Pmmn	98	2.0	Mn₂Cl₂N₂	Pmmn	93	3.0
	Cr₂I₂Se₂	Pmmn	90	3.0	Cr₂I₂S₂	Pmmn	88	3.0
	Cr₂Br₂S₂	Pmmn	81	3.0	Cr₂Cl₂S₂	Pmmn	66	3.0
	HoSI	Pmmn	30	4.0
Zr₂I₂S₂-Zr (1 L)	Zr₂I₂S₂	Pc	5	0.8
EuOI-Eu (2 L)	EuOI	P4/nmm	35	7.4
V₃N₂O₂-V (3 L)	V₃N₂O₂	P-6m2	71	1.0
Cr₃Te₄-Cr 3 L	Cr₃Te₄	P-3m1	133	3.3
Fe₃GeTe₂-Fe (3 L)	Fe₃GeTe₂	P-6m2	158	1.5
Fe₄GeTe₂-Fe (4 L)	Fe₄GeTe₂	P-3m1	207	2.1

The calculated T_C (in K) and local magnetic moment M (in μ_B per spin) are also shown. 1 L, 2 L, 3 L, and 4 L denote that the 2DFM materials have 1, 2, 3, and 4 layers of magnetic atoms, respectively.

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Table 1 The structural prototypes of the 2DFM materials, and the chemical formula, space group of each compound.

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