Home / Magnets / Sm2Co16Zn (MAG-000265)

Sm2Co16Zn

Ternary

Crystal Structure

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Overview

Magnetic flux density1.085T
Magnetization density0.093μB Å−3
Total spin moment69.015μB cell−1
MP-reference hull distance0.016eV atom−1
Cell volume741.320Å3
Number of atoms57atoms
Chemical system Sm-Co-Zn Calculation Converged

Final Relaxed Cell

Calculated-cell formulaCo48Sm6Zn3
a, b, c8.391, 8.391, 12.157 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume741.320 Å3
Volume per atom13.006 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
Zn1Zn3a33m
Co1Co9b9.m
Co2Co9b9.m
Co3Co18c181
Co4Co9b9.m
Co5Co3a33m

Prototype Relationship

Parent prototypeTh2Zn17-type (A17B2)
Parent space groupR-3m (No. 166)
AFLOW ANRL labelA17B2_hR19_166_cegh_c-001

Cell Magnetization

Total spin moment69.015 μB cell−1
Moment per atom1.211 μB atom−1
Magnetization density0.093 μB Å−3
μ0M1.085 T
PAW-sphere total71.352 μB cell−1
Interstitial remainder-2.337 μB cell−1

Sublattice Magnetization

Rare-earth sublattice-1.482 μB
Transition-metal sublattice72.834 μB
RE–TM alignmentAntiparallel

Element-Resolved Moments

ElementAtomsPAW-sphere totalμBMean per atomμB atom−1RangeμB
Sm6-1.482-0.247-0.257 to -0.237
Zn3-0.222-0.074-0.074 to -0.074
Co4873.0561.5221.481 to 1.561

Site-Resolved PAW-Sphere Moments

SiteElementWyckoffsμBpμBdμBTotalμB
1Sma-0.012-0.026-0.219-0.257
2Sma-0.012-0.026-0.219-0.257
3Sma-0.011-0.024-0.201-0.237
4Sma-0.011-0.024-0.201-0.237
5Sma-0.011-0.024-0.201-0.237
6Sma-0.012-0.026-0.219-0.257
7Zna-0.010-0.060-0.003-0.074
8Zna-0.010-0.060-0.003-0.074
9Zna-0.010-0.060-0.003-0.074
10Cob-0.009-0.0471.5791.523
11Cob-0.009-0.0471.5791.523
12Cob-0.009-0.0471.5791.523
13Cob-0.009-0.0471.5791.523
14Cob-0.009-0.0471.5791.523
15Cob-0.009-0.0471.5791.523
16Cob-0.009-0.0471.5791.523
17Cob-0.006-0.0481.5471.493
18Cob-0.006-0.0481.5471.493
19Cob-0.006-0.0481.5471.493
20Cob-0.006-0.0481.5471.493
21Cob-0.006-0.0481.5471.493
22Cob-0.006-0.0481.5471.493
23Cob-0.006-0.0481.5471.493
24Cob-0.009-0.0471.5791.523
25Cob-0.009-0.0471.5791.523
26Coc-0.008-0.0451.6141.561
27Cob-0.006-0.0481.5471.493
28Cob-0.006-0.0481.5471.493
29Coc-0.008-0.0451.6141.561
30Coc-0.008-0.0451.6141.561
31Coc-0.008-0.0451.6141.561
32Coc-0.008-0.0451.6141.561
33Coc-0.008-0.0451.6141.561
34Coc-0.008-0.0451.6141.561
35Coc-0.008-0.0451.6141.561
36Coc-0.008-0.0451.6141.561
37Coc-0.008-0.0451.6141.561
38Coc-0.008-0.0451.6141.561
39Coc-0.008-0.0451.6141.561
40Coc-0.008-0.0451.6141.561
41Coc-0.008-0.0451.6141.561
42Cob-0.005-0.0481.5341.481
43Cob-0.005-0.0481.5341.481
44Cob-0.005-0.0481.5341.481
45Cob-0.005-0.0481.5341.481
46Cob-0.005-0.0481.5341.481
47Cob-0.005-0.0481.5341.481
48Coa-0.010-0.0471.5521.495
49Coa-0.010-0.0471.5521.495
50Coa-0.010-0.0471.5521.495
51Coc-0.008-0.0451.6141.561
52Coc-0.008-0.0451.6141.561
53Coc-0.008-0.0451.6141.561
54Coc-0.008-0.0451.6141.561
55Cob-0.005-0.0481.5341.481
56Cob-0.005-0.0481.5341.481
57Cob-0.005-0.0481.5341.481

Convex Hull: Sm-Co-Zn

Energy above hull 0.016 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 MAGMOM6*5.0 3*0.6 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 = 6*5.0 3*0.6 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 spacing0.28821 Å−1
View exact KPOINTS
pymatgen with grid density = 1222 / number of atoms
0
Gamma
3 3 2

PAW Potentials

ElementVASP TITELZVALENMAXeV
SmPAW_PBE Sm_3 07Sep200011.000177.087
ZnPAW_PBE Zn 06Sep200012.000276.727
CoPAW_PBE Co 06Sep20009.000267.969