NovoMag Database

Material:

Fe₆Co₂N

ID:

MMD-479

Explore database:

Compounds with the same formula: Fe₆Co₂N (12 entries found)

Compounds with the same elements: Fe-Co-N (272 entries found)

Space group:

Crystal system	tetragonal
Space group number	139
Hermann-Mauguin	I4/mmm
Hall	-I 4 2
Point group	4/mmm

Structure data:

Normalized formula	Fe₆Co₂N
The number of formula units per unit cell	2
The total number of atoms per unit cell	18
The number of inequivalent sites per unit cell	4
Structure search	AGA search

Lattice parameters:

a (Å)	5.6310
b (Å)	5.6310
c (Å)	6.2480
α (deg.)	90.000
β (deg.)	90.000
γ (deg.)	90.000
Volume (Å³)	198.113
Density (g/cm³)	7.828

Crystal structure visualization:

Thermodynamic properties:

	DFT calculations (details)
Formation energy (vs. elemental phases)	-22.6 meV/atom
Formation energy above hull	50.7 meV/atom

Phase diagram:

The convex hull is temporarily not available while we perform maintenance.

Related structures:

Compounds with the same formula: Fe₆Co₂N	12 entries found
Compounds with the same elements: Fe-Co-N	272 entries found
Binary compounds in Fe-Co system	11 entries found
Binary compounds in Fe-N system	38 entries found
Binary compounds in Co-N system	183 entries found

Magnetic properties:

	DFT calculations (details)
Magnetic ordering	Ferromagnetic
Total magnetic moment	35.20 μ_B/cell
Averaged magnetic moment	1.96 μ_B/atom
Magnetic polarization, J_s = μ₀M_s	2.07 T (= 1647.3 emu/cm³)

	LMTO-GF calculations (details)
Curie temperature, T_C

	DFT calculations (details)
Magnetic anisotropy constant, K^a-c	0.79 MJ/m³ (= 0.97 meV/cell)
Magnetic easy axis	c
Magnetic hardness parameter, κ	0.48

Atomic positions (fractional coordinates) and site-specific magnetic data:

index	species	w	x	y	z	m (μ_B)	E^soc₁₀₀ (meV)	E^soc₀₀₁ (meV)
1	N	2b	0.000000	0.000000	0.500000	-0.04	.	.
2	N	2b	0.500000	0.500000	0.000000	-0.04	.	.
3	Co	4e	0.000000	0.000000	0.203330	1.24	.	.
4	Co	4e	0.000000	0.000000	0.796670	1.24	.	.
5	Co	4e	0.500000	0.500000	0.703330	1.24	.	.
6	Co	4e	0.500000	0.500000	0.296670	1.24	.	.
7	Fe	8h	0.742410	0.742410	0.000000	2.27	.	.
8	Fe	8h	0.257590	0.257590	0.000000	2.27	.	.
9	Fe	8h	0.257590	0.742410	0.000000	2.27	.	.
10	Fe	8h	0.742410	0.257590	0.000000	2.27	.	.
11	Fe	8h	0.242410	0.242410	0.500000	2.27	.	.
12	Fe	8h	0.757590	0.757590	0.500000	2.27	.	.
13	Fe	8h	0.757590	0.242410	0.500000	2.27	.	.
14	Fe	8h	0.242410	0.757590	0.500000	2.27	.	.
15	Fe	4d	0.000000	0.500000	0.250000	2.59	.	.
16	Fe	4d	0.000000	0.500000	0.750000	2.59	.	.
17	Fe	4d	0.500000	0.000000	0.250000	2.59	.	.
18	Fe	4d	0.500000	0.000000	0.750000	2.59	.	.

w: site multiplicity (the number of equivalent positions) and Wyckoff letter (a label for site symmetry)
m: local magnetic moment
E^soc_{100 (001)}: Spin-orbit coupling energy for the magnetization oriented along the crystallographic a (c) axis
(Individual E^soc values are temporarily not available while we perform maintenance.)

Terms and conditions

Site-resolved magnetic moments:

Pair-wise magnetic data:

site i			site j			distance (Å)	J_ij (meV)
1	N	2b	2	N	2b	5.06	.
1	N	2b	3	Co	4e	1.85	.
1	N	2b	4	Co	4e	1.85	.
1	N	2b	5	Co	4e	4.18	.
1	N	2b	6	Co	4e	4.18	.
1	N	2b	7	Fe	8h	3.74	.
1	N	2b	8	Fe	8h	3.74	.
1	N	2b	9	Fe	8h	3.74	.
1	N	2b	10	Fe	8h	3.74	.
1	N	2b	11	Fe	8h	1.93	.
1	N	2b	12	Fe	8h	1.93	.
1	N	2b	13	Fe	8h	1.93	.
1	N	2b	14	Fe	8h	1.93	.
1	N	2b	15	Fe	4d	3.22	.
1	N	2b	16	Fe	4d	3.22	.
1	N	2b	17	Fe	4d	3.22	.
1	N	2b	18	Fe	4d	3.22	.
2	N	2b	3	Co	4e	4.18	.
2	N	2b	4	Co	4e	4.18	.
2	N	2b	5	Co	4e	1.85	.
2	N	2b	6	Co	4e	1.85	.
2	N	2b	7	Fe	8h	1.93	.
2	N	2b	8	Fe	8h	1.93	.
2	N	2b	9	Fe	8h	1.93	.
2	N	2b	10	Fe	8h	1.93	.
2	N	2b	11	Fe	8h	3.74	.
2	N	2b	12	Fe	8h	3.74	.
2	N	2b	13	Fe	8h	3.74	.
2	N	2b	14	Fe	8h	3.74	.
2	N	2b	15	Fe	4d	3.22	.
2	N	2b	16	Fe	4d	3.22	.
2	N	2b	17	Fe	4d	3.22	.
2	N	2b	18	Fe	4d	3.22	.
3	Co	4e	4	Co	4e	2.54	.
3	Co	4e	5	Co	4e	5.06	.
3	Co	4e	6	Co	4e	4.02	.
3	Co	4e	7	Fe	8h	2.41	.
3	Co	4e	8	Fe	8h	2.41	.
3	Co	4e	9	Fe	8h	2.41	.
3	Co	4e	10	Fe	8h	2.41	.
3	Co	4e	11	Fe	8h	2.68	.
3	Co	4e	12	Fe	8h	2.68	.
3	Co	4e	13	Fe	8h	2.68	.
3	Co	4e	14	Fe	8h	2.68	.
3	Co	4e	15	Fe	4d	2.83	.
3	Co	4e	16	Fe	4d	3.99	.
3	Co	4e	17	Fe	4d	2.83	.
3	Co	4e	18	Fe	4d	3.99	.
4	Co	4e	5	Co	4e	4.02	.
4	Co	4e	6	Co	4e	5.06	.
4	Co	4e	7	Fe	8h	2.41	.
4	Co	4e	8	Fe	8h	2.41	.
4	Co	4e	9	Fe	8h	2.41	.
4	Co	4e	10	Fe	8h	2.41	.
4	Co	4e	11	Fe	8h	2.68	.
4	Co	4e	12	Fe	8h	2.68	.
4	Co	4e	13	Fe	8h	2.68	.
4	Co	4e	14	Fe	8h	2.68	.
4	Co	4e	15	Fe	4d	3.99	.
4	Co	4e	16	Fe	4d	2.83	.
4	Co	4e	17	Fe	4d	3.99	.
4	Co	4e	18	Fe	4d	2.83	.
5	Co	4e	6	Co	4e	2.54	.
5	Co	4e	7	Fe	8h	2.68	.
5	Co	4e	8	Fe	8h	2.68	.
5	Co	4e	9	Fe	8h	2.68	.
5	Co	4e	10	Fe	8h	2.68	.
5	Co	4e	11	Fe	8h	2.41	.
5	Co	4e	12	Fe	8h	2.41	.
5	Co	4e	13	Fe	8h	2.41	.
5	Co	4e	14	Fe	8h	2.41	.
5	Co	4e	15	Fe	4d	3.99	.
5	Co	4e	16	Fe	4d	2.83	.
5	Co	4e	17	Fe	4d	3.99	.
5	Co	4e	18	Fe	4d	2.83	.
6	Co	4e	7	Fe	8h	2.68	.
6	Co	4e	8	Fe	8h	2.68	.
6	Co	4e	9	Fe	8h	2.68	.
6	Co	4e	10	Fe	8h	2.68	.
6	Co	4e	11	Fe	8h	2.41	.
6	Co	4e	12	Fe	8h	2.41	.
6	Co	4e	13	Fe	8h	2.41	.
6	Co	4e	14	Fe	8h	2.41	.
6	Co	4e	15	Fe	4d	2.83	.
6	Co	4e	16	Fe	4d	3.99	.
6	Co	4e	17	Fe	4d	2.83	.
6	Co	4e	18	Fe	4d	3.99	.
7	Fe	8h	8	Fe	8h	3.86	.
7	Fe	8h	9	Fe	8h	2.73	.
7	Fe	8h	10	Fe	8h	2.73	.
7	Fe	8h	11	Fe	8h	5.06	.
7	Fe	8h	12	Fe	8h	3.13	.
7	Fe	8h	13	Fe	8h	4.21	.
7	Fe	8h	14	Fe	8h	4.21	.
7	Fe	8h	15	Fe	4d	2.53	.
7	Fe	8h	16	Fe	4d	2.53	.
7	Fe	8h	17	Fe	4d	2.53	.
7	Fe	8h	18	Fe	4d	2.53	.
8	Fe	8h	9	Fe	8h	2.73	.
8	Fe	8h	10	Fe	8h	2.73	.
8	Fe	8h	11	Fe	8h	3.13	.
8	Fe	8h	12	Fe	8h	5.06	.
8	Fe	8h	13	Fe	8h	4.21	.
8	Fe	8h	14	Fe	8h	4.21	.
8	Fe	8h	15	Fe	4d	2.53	.
8	Fe	8h	16	Fe	4d	2.53	.
8	Fe	8h	17	Fe	4d	2.53	.
8	Fe	8h	18	Fe	4d	2.53	.
9	Fe	8h	10	Fe	8h	3.86	.
9	Fe	8h	11	Fe	8h	4.21	.
9	Fe	8h	12	Fe	8h	4.21	.
9	Fe	8h	13	Fe	8h	5.06	.
9	Fe	8h	14	Fe	8h	3.13	.
9	Fe	8h	15	Fe	4d	2.53	.
9	Fe	8h	16	Fe	4d	2.53	.
9	Fe	8h	17	Fe	4d	2.53	.
9	Fe	8h	18	Fe	4d	2.53	.
10	Fe	8h	11	Fe	8h	4.21	.
10	Fe	8h	12	Fe	8h	4.21	.
10	Fe	8h	13	Fe	8h	3.13	.
10	Fe	8h	14	Fe	8h	5.06	.
10	Fe	8h	15	Fe	4d	2.53	.
10	Fe	8h	16	Fe	4d	2.53	.
10	Fe	8h	17	Fe	4d	2.53	.
10	Fe	8h	18	Fe	4d	2.53	.
11	Fe	8h	12	Fe	8h	3.86	.
11	Fe	8h	13	Fe	8h	2.73	.
11	Fe	8h	14	Fe	8h	2.73	.
11	Fe	8h	15	Fe	4d	2.53	.
11	Fe	8h	16	Fe	4d	2.53	.
11	Fe	8h	17	Fe	4d	2.53	.
11	Fe	8h	18	Fe	4d	2.53	.
12	Fe	8h	13	Fe	8h	2.73	.
12	Fe	8h	14	Fe	8h	2.73	.
12	Fe	8h	15	Fe	4d	2.53	.
12	Fe	8h	16	Fe	4d	2.53	.
12	Fe	8h	17	Fe	4d	2.53	.
12	Fe	8h	18	Fe	4d	2.53	.
13	Fe	8h	14	Fe	8h	3.86	.
13	Fe	8h	15	Fe	4d	2.53	.
13	Fe	8h	16	Fe	4d	2.53	.
13	Fe	8h	17	Fe	4d	2.53	.
13	Fe	8h	18	Fe	4d	2.53	.
14	Fe	8h	15	Fe	4d	2.53	.
14	Fe	8h	16	Fe	4d	2.53	.
14	Fe	8h	17	Fe	4d	2.53	.
14	Fe	8h	18	Fe	4d	2.53	.
15	Fe	4d	16	Fe	4d	3.12	.
15	Fe	4d	17	Fe	4d	3.98	.
15	Fe	4d	18	Fe	4d	5.06	.
16	Fe	4d	17	Fe	4d	5.06	.
16	Fe	4d	18	Fe	4d	3.98	.
17	Fe	4d	18	Fe	4d	3.12	.

J_ij: magnetic exchange parameter between site i and j (Individual J_ij values are temporarily not available while we perform maintenance.)

Terms and conditions

Pair-resolved magnetic exchange parameters:

Individual exchange parameters:

Methods:

DFT calculations

exchange-correlation energy functional: GGA-PBE
pseudopotential type: PAW
cutoff energy: 65.0 Ry
k-point grid: (kx, ky, kz) = (12, 12, 10) for magnetic anisotropy calculations
package: QE (v6.3)

LMTO-GF calculations

k-point grid: (kx, ky, kz) =
energy mesh: 41 points on an elliptical contour
package: Questaal (v7)

Material:

Fe6Co2N

ID:

MMD-479

Explore database:

Compounds with the same formula: Fe6Co2N (12 entries found)

Compounds with the same elements: Fe-Co-N (272 entries found)

Space group:

Crystal system

tetragonal

Space group number

139

Hermann-Mauguin

I4/mmm

Hall

-I 4 2

Point group

4/mmm

Structure data:

Normalized formula

Fe6Co2N

The number of formula units per unit cell

2

The total number of atoms per unit cell

18

The number of inequivalent sites per unit cell

4

Structure search

AGA search

Lattice parameters:

a (Å)

5.6310

b (Å)

5.6310

c (Å)

6.2480

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

198.113

Density (g/cm3)

7.828

Crystal structure visualization:

Thermodynamic properties:

Formation energy (vs. elemental phases)

-22.6 meV/atom

Formation energy above hull

50.7 meV/atom

Phase diagram:

Related structures:

Compounds with the same formula: Fe6Co2N

12 entries found

Compounds with the same elements: Fe-Co-N

272 entries found

Binary compounds in Fe-Co system

11 entries found

Binary compounds in Fe-N system

38 entries found

Binary compounds in Co-N system

183 entries found

Magnetic properties:

Magnetic ordering

Ferromagnetic

Total magnetic moment

35.20 μB/cell

Averaged magnetic moment

1.96 μB/atom

Magnetic polarization, Js = μ0Ms

2.07 T (= 1647.3 emu/cm3)

Curie temperature, TC

Magnetic anisotropy constant, Ka-c

0.79 MJ/m3 (= 0.97 meV/cell)

Magnetic easy axis

c

Magnetic hardness parameter, κ

0.48

Fe₆Co₂N

Compounds with the same formula: Fe₆Co₂N (12 entries found)

Fe₆Co₂N

Volume (Å³)

Density (g/cm³)

Compounds with the same formula: Fe₆Co₂N

35.20 μ_B/cell

1.96 μ_B/atom

Magnetic polarization, J_s = μ₀M_s

2.07 T (= 1647.3 emu/cm³)

Curie temperature, T_C

Magnetic anisotropy constant, K^a-c

0.79 MJ/m³ (= 0.97 meV/cell)