Home / Magnets / Sm3Co16 (MAG-000038)

Sm3Co16

Binary

Crystal Structure

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Overview

Magnetic flux density1.029T
Magnetization density0.088μB Å−3
Total spin moment69.097μB cell−1
MP-reference hull distance0.065eV atom−1
Cell volume782.340Å3
Number of atoms57atoms
Chemical system Sm-Co Calculation Converged

Final Relaxed Cell

Calculated-cell formulaCo48Sm9
a, b, c8.578, 8.578, 12.277 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume782.340 Å3
Volume per atom13.725 Å3 atom−1
Formula units, Z3

Final Symmetry

Space groupR3m (No. 160)
Crystal systemTrigonal
Point group3m
Hall symbolR 3 -2"
Pearson symbolhR19

Occupied Wyckoff Sites

SiteElementWyckoff positionMultiplicitySite symmetry
Sm1Sm3a33m
Sm2Sm3a33m
Sm3Sm3a33m
Co1Co18c181
Co2Co9b9.m
Co3Co9b9.m
Co4Co9b9.m
Co5Co3a33m

Prototype Relationship

Cell Magnetization

Total spin moment69.097 μB cell−1
Moment per atom1.212 μB atom−1
Magnetization density0.088 μB Å−3
μ0M1.029 T
PAW-sphere total71.682 μB cell−1
Interstitial remainder-2.585 μB cell−1

Sublattice Magnetization

Rare-earth sublattice-2.199 μB
Transition-metal sublattice73.881 μB
RE–TM alignmentAntiparallel

Element-Resolved Moments

ElementAtomsPAW-sphere totalμBMean per atomμB atom−1RangeμB
Sm9-2.199-0.244-0.258 to -0.234
Co4873.8811.5391.454 to 1.627

Site-Resolved PAW-Sphere Moments

SiteElementWyckoffsμBpμBdμBTotalμB
1Sma-0.020-0.021-0.218-0.258
2Sma-0.020-0.021-0.218-0.258
3Sma-0.014-0.023-0.204-0.241
4Sma-0.014-0.023-0.204-0.241
5Sma-0.014-0.023-0.204-0.241
6Sma-0.011-0.025-0.199-0.234
7Sma-0.011-0.025-0.199-0.234
8Sma-0.011-0.025-0.199-0.234
9Sma-0.020-0.021-0.218-0.258
10Coc0.001-0.0401.6661.627
11Coc0.001-0.0401.6661.627
12Coc0.001-0.0401.6661.627
13Coc0.001-0.0401.6661.627
14Coc0.001-0.0401.6661.627
15Coc0.001-0.0401.6661.627
16Coc0.001-0.0401.6661.627
17Coc0.001-0.0401.6661.627
18Coc0.001-0.0401.6661.627
19Coc0.001-0.0401.6661.627
20Coc0.001-0.0401.6661.627
21Coc0.001-0.0401.6661.627
22Coc0.001-0.0401.6661.627
23Coc0.001-0.0401.6661.627
24Coc0.001-0.0401.6661.627
25Coc0.001-0.0401.6661.627
26Cob-0.008-0.0401.5501.502
27Coc0.001-0.0401.6661.627
28Coc0.001-0.0401.6661.627
29Cob-0.008-0.0401.5501.502
30Cob-0.008-0.0401.5501.502
31Cob-0.008-0.0401.5501.502
32Cob-0.008-0.0401.5501.502
33Cob-0.007-0.0431.5371.487
34Cob-0.007-0.0431.5371.487
35Cob-0.007-0.0431.5371.487
36Cob-0.007-0.0431.5371.487
37Cob-0.007-0.0431.5371.487
38Cob-0.008-0.0401.5501.502
39Cob-0.008-0.0401.5501.502
40Cob-0.008-0.0401.5501.502
41Cob-0.008-0.0401.5501.502
42Cob-0.004-0.0451.5031.454
43Cob-0.004-0.0451.5031.454
44Cob-0.004-0.0451.5031.454
45Cob-0.004-0.0451.5031.454
46Cob-0.004-0.0451.5031.454
47Cob-0.004-0.0451.5031.454
48Cob-0.004-0.0451.5031.454
49Cob-0.004-0.0451.5031.454
50Cob-0.004-0.0451.5031.454
51Cob-0.007-0.0431.5371.487
52Cob-0.007-0.0431.5371.487
53Cob-0.007-0.0431.5371.487
54Cob-0.007-0.0431.5371.487
55Coa-0.000-0.0501.5861.536
56Coa-0.000-0.0501.5861.536
57Coa-0.000-0.0501.5861.536

Convex Hull: Sm-Co

Energy above hull 0.065 eV/atom Reference set loading Candidates on this hull loading
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VASP Calculation

MethodCollinear spin-polarized DFT
Exchange-correlationPBE
Plane-wave cutoff520.0 eV
PrecisionNormal
Electronic convergence0.0001 eV
Ionic convergence-0.01 eV Å−1
Initial MAGMOM9*5.0 48*2.0
RelaxationIBRION 1, ISIF 3, NSW 100
View exact INCAR
ADDGRID = True
ALGO = Normal
EDIFF = 0.0001
EDIFFG = -0.01
ENCUT = 520.0
IBRION = 1
ISIF = 3
ISMEAR = 1
ISPIN = 2
LAECHG = False
LASPH = True
LCHARG = False
LMAXMIX = 6
LORBIT = 11
LREAL = Auto
LWAVE = False
MAGMOM = 9*5.0 48*2.0
NCORE = 4
NELM = 120
NSW = 100
POTIM = 0.2
PREC = Normal
SIGMA = 0.05

Brillouin-Zone Sampling

SchemeGamma
Mesh3 × 3 × 2
Maximum reciprocal spacing0.28193 Å−1
View exact KPOINTS
pymatgen with grid density = 1140 / number of atoms
0
Gamma
3 3 2

PAW Potentials

ElementVASP TITELZVALENMAXeV
SmPAW_PBE Sm_3 07Sep200011.000177.087
CoPAW_PBE Co 06Sep20009.000267.969