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Sm2Co16Mn

Ternary Featured

Crystal Structure

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Overview

Magnetic flux density1.257T
Magnetization density0.108μB Å−3
Total spin moment79.779μB cell−1
MP-reference hull distance-0.004eV atom−1
Cell volume739.710Å3
Number of atoms57atoms
Chemical system Sm-Co-Mn Calculation Converged

Final Relaxed Cell

Calculated-cell formulaCo48Mn3Sm6
a, b, c8.384, 8.384, 12.152 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume739.710 Å3
Volume per atom12.977 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
Mn1Mn3a33m
Co1Co9b9.m
Co2Co9b9.m
Co3Co9b9.m
Co4Co18c181
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 moment79.779 μB cell−1
Moment per atom1.400 μB atom−1
Magnetization density0.108 μB Å−3
μ0M1.257 T
PAW-sphere total81.717 μB cell−1
Interstitial remainder-1.938 μB cell−1

Sublattice Magnetization

Rare-earth sublattice-1.446 μB
Transition-metal sublattice83.163 μB
RE–TM alignmentAntiparallel

Element-Resolved Moments

ElementAtomsPAW-sphere totalμBMean per atomμB atom−1RangeμB
Sm6-1.446-0.241-0.244 to -0.238
Mn39.2583.0863.086 to 3.086
Co4873.9051.5401.502 to 1.586

Site-Resolved PAW-Sphere Moments

SiteElementWyckoffsμBpμBdμBTotalμB
1Sma-0.012-0.024-0.202-0.238
2Sma-0.012-0.024-0.202-0.238
3Sma-0.011-0.025-0.208-0.244
4Sma-0.011-0.025-0.208-0.244
5Sma-0.011-0.025-0.208-0.244
6Sma-0.012-0.024-0.202-0.238
7Mna0.010-0.0113.0873.086
8Mna0.010-0.0113.0873.086
9Mna0.010-0.0113.0873.086
10Cob-0.016-0.0531.6151.546
11Cob-0.016-0.0531.6151.546
12Cob-0.016-0.0531.6151.546
13Cob-0.016-0.0531.6151.546
14Cob-0.016-0.0531.6151.546
15Cob-0.016-0.0531.6151.546
16Cob-0.016-0.0531.6151.546
17Cob-0.007-0.0531.5611.502
18Cob-0.007-0.0531.5611.502
19Cob-0.007-0.0531.5611.502
20Cob-0.007-0.0531.5611.502
21Cob-0.016-0.0531.6151.546
22Cob-0.016-0.0531.6151.546
23Cob-0.007-0.0531.5611.502
24Cob-0.007-0.0531.5611.502
25Cob-0.007-0.0531.5611.502
26Cob-0.011-0.0501.5691.507
27Cob-0.011-0.0501.5691.507
28Cob-0.011-0.0501.5691.507
29Cob-0.007-0.0531.5611.502
30Cob-0.007-0.0531.5611.502
31Cob-0.011-0.0501.5691.507
32Cob-0.011-0.0501.5691.507
33Coc-0.012-0.0491.6251.564
34Coc-0.012-0.0491.6251.564
35Cob-0.011-0.0501.5691.507
36Cob-0.011-0.0501.5691.507
37Cob-0.011-0.0501.5691.507
38Cob-0.011-0.0501.5691.507
39Coc-0.012-0.0491.6251.564
40Coc-0.012-0.0491.6251.564
41Coc-0.012-0.0491.6251.564
42Coc-0.012-0.0491.6251.564
43Coc-0.012-0.0491.6251.564
44Coc-0.012-0.0491.6251.564
45Coc-0.012-0.0491.6251.564
46Coc-0.012-0.0491.6251.564
47Coc-0.012-0.0491.6251.564
48Coc-0.012-0.0491.6251.564
49Coc-0.012-0.0491.6251.564
50Coc-0.012-0.0491.6251.564
51Coc-0.012-0.0491.6251.564
52Coc-0.012-0.0491.6251.564
53Coc-0.012-0.0491.6251.564
54Coc-0.012-0.0491.6251.564
55Coa-0.011-0.0411.6381.586
56Coa-0.011-0.0411.6381.586
57Coa-0.011-0.0411.6381.586

Convex Hull: Sm-Co-Mn

Energy above hull -0.004 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 spacing0.28847 Å−1
View exact KPOINTS
pymatgen with grid density = 1278 / number of atoms
0
Gamma
3 3 2

PAW Potentials

ElementVASP TITELZVALENMAXeV
SmPAW_PBE Sm_3 07Sep200011.000177.087
MnPAW_PBE Mn_pv 07Sep200013.000269.865
CoPAW_PBE Co 06Sep20009.000267.969