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Sm3Fe16

Binary

Crystal Structure

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Overview

Magnetic flux density1.505T
Magnetization density0.129μB Å−3
Total spin moment106.854μB cell−1
MP-reference hull distance0.080eV atom−1
Cell volume827.560Å3
Number of atoms57atoms
Chemical system Sm-Fe Calculation Converged

Final Relaxed Cell

Calculated-cell formulaFe48Sm9
a, b, c8.803, 8.803, 12.332 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume827.560 Å3
Volume per atom14.519 Å3 atom−1
Formula units, Z3

Final Symmetry

Space groupR-3m (No. 166)
Crystal systemTrigonal
Point group-3m
Hall symbol-R 3 2"
Pearson symbolhR19

Occupied Wyckoff Sites

SiteElementWyckoff positionMultiplicitySite symmetry
Sm1Sm6c63m
Sm2Sm3a3-3m
Fe1Fe18h18.m
Fe2Fe9d9.2/m
Fe3Fe18f18.2
Fe4Fe3b3-3m

Prototype Relationship

Cell Magnetization

Total spin moment106.854 μB cell−1
Moment per atom1.875 μB atom−1
Magnetization density0.129 μB Å−3
μ0M1.505 T
PAW-sphere total109.617 μB cell−1
Interstitial remainder-2.763 μB cell−1

Sublattice Magnetization

Rare-earth sublattice-2.634 μB
Transition-metal sublattice112.251 μB
RE–TM alignmentAntiparallel

Element-Resolved Moments

ElementAtomsPAW-sphere totalμBMean per atomμB atom−1RangeμB
Sm9-2.634-0.293-0.295 to -0.288
Fe48112.2512.3392.218 to 2.459

Site-Resolved PAW-Sphere Moments

SiteElementWyckoffsμBpμBdμBTotalμB
1Smc-0.025-0.022-0.248-0.295
2Smc-0.025-0.022-0.248-0.295
3Smc-0.025-0.022-0.248-0.295
4Smc-0.025-0.022-0.248-0.295
5Smc-0.025-0.022-0.248-0.295
6Sma-0.024-0.031-0.233-0.288
7Sma-0.024-0.031-0.233-0.288
8Sma-0.024-0.031-0.233-0.288
9Smc-0.025-0.022-0.248-0.295
10Feh-0.003-0.0312.3012.267
11Feh-0.003-0.0312.3012.267
12Feh-0.003-0.0312.3012.267
13Feh-0.003-0.0312.3012.267
14Feh-0.003-0.0312.3012.267
15Feh-0.003-0.0312.3012.267
16Feh-0.003-0.0312.3012.267
17Feh-0.003-0.0312.3012.267
18Feh-0.003-0.0312.3012.267
19Feh-0.003-0.0312.3012.267
20Feh-0.003-0.0312.3012.267
21Feh-0.003-0.0312.3012.267
22Feh-0.003-0.0312.3012.267
23Feh-0.003-0.0312.3012.267
24Feh-0.003-0.0312.3012.267
25Feh-0.003-0.0312.3012.267
26Fed0.002-0.0312.3102.281
27Feh-0.003-0.0312.3012.267
28Feh-0.003-0.0312.3012.267
29Fed0.002-0.0312.3102.281
30Fed0.002-0.0312.3102.281
31Fed0.002-0.0312.3102.281
32Fed0.002-0.0312.3102.281
33Fef0.005-0.0342.4882.459
34Fef0.005-0.0342.4882.459
35Fef0.005-0.0342.4882.459
36Fef0.005-0.0342.4882.459
37Fef0.005-0.0342.4882.459
38Fed0.002-0.0312.3102.281
39Fed0.002-0.0312.3102.281
40Fed0.002-0.0312.3102.281
41Fed0.002-0.0312.3102.281
42Fef0.005-0.0342.4882.459
43Fef0.005-0.0342.4882.459
44Fef0.005-0.0342.4882.459
45Fef0.005-0.0342.4882.459
46Fef0.005-0.0342.4882.459
47Fef0.005-0.0342.4882.459
48Feb-0.006-0.0302.2532.218
49Feb-0.006-0.0302.2532.218
50Feb-0.006-0.0302.2532.218
51Fef0.005-0.0342.4882.459
52Fef0.005-0.0342.4882.459
53Fef0.005-0.0342.4882.459
54Fef0.005-0.0342.4882.459
55Fef0.005-0.0342.4882.459
56Fef0.005-0.0342.4882.459
57Fef0.005-0.0342.4882.459

Convex Hull: Sm-Fe

Energy above hull 0.080 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 MAGMOM57*5.0
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 = 57*5.0
NCORE = 4
NELM = 120
NSW = 100
POTIM = 0.2
PREC = Normal
SIGMA = 0.05

Brillouin-Zone Sampling

SchemeGamma
Mesh3 × 3 × 2
Maximum reciprocal spacing0.27473 Å−1
View exact KPOINTS
pymatgen with grid density = 1129 / number of atoms
0
Gamma
3 3 2

PAW Potentials

ElementVASP TITELZVALENMAXeV
SmPAW_PBE Sm_3 07Sep200011.000177.087
FePAW_PBE Fe_pv 06Sep200014.000293.238