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Sm2Fe7

Binary

Crystal Structure

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Overview

Magnetic flux density1.229T
Magnetization density0.105μB Å−3
Total spin moment88.416μB cell−1
MP-reference hull distance0.019eV atom−1
Cell volume838.130Å3
Number of atoms54atoms
Chemical system Sm-Fe Calculation Converged

Final Relaxed Cell

Calculated-cell formulaFe42Sm12
a, b, c5.148, 5.148, 36.519 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume838.130 Å3
Volume per atom15.521 Å3 atom−1
Formula units, Z6

Final Symmetry

Space groupR-3m (No. 166)
Crystal systemTrigonal
Point group-3m
Hall symbol-R 3 2"
Pearson symbolhR18

Occupied Wyckoff Sites

SiteElementWyckoff positionMultiplicitySite symmetry
Sm1Sm6c63m
Sm2Sm6c63m
Fe1Fe18h18.m
Fe2Fe6c63m
Fe3Fe9d9.2/m
Fe4Fe6c63m
Fe5Fe3a3-3m

Prototype Relationship

Parent space groupR-3m (No. 166)
AFLOW ANRL labelA7B2_hR18_166_a2cdh_2c-001

Cell Magnetization

Total spin moment88.416 μB cell−1
Moment per atom1.637 μB atom−1
Magnetization density0.105 μB Å−3
μ0M1.229 T
PAW-sphere total91.872 μB cell−1
Interstitial remainder-3.456 μB cell−1

Sublattice Magnetization

Rare-earth sublattice-4.020 μB
Transition-metal sublattice95.892 μB
RE–TM alignmentAntiparallel

Element-Resolved Moments

ElementAtomsPAW-sphere totalμBMean per atomμB atom−1RangeμB
Sm12-4.020-0.335-0.376 to -0.294
Fe4295.8922.2832.066 to 2.406

Site-Resolved PAW-Sphere Moments

SiteElementWyckoffsμBpμBdμBTotalμB
1Smc-0.026-0.035-0.233-0.294
2Smc-0.026-0.035-0.233-0.294
3Smc-0.026-0.035-0.233-0.294
4Smc-0.026-0.035-0.233-0.294
5Smc-0.032-0.017-0.327-0.376
6Smc-0.032-0.017-0.327-0.376
7Smc-0.026-0.035-0.233-0.294
8Smc-0.026-0.035-0.233-0.294
9Smc-0.032-0.017-0.327-0.376
10Smc-0.032-0.017-0.327-0.376
11Smc-0.032-0.017-0.327-0.376
12Smc-0.032-0.017-0.327-0.376
13Feh0.005-0.0272.2622.239
14Feh0.005-0.0272.2622.239
15Feh0.005-0.0272.2622.239
16Feh0.005-0.0272.2622.239
17Feh0.005-0.0272.2622.239
18Feh0.005-0.0272.2622.239
19Feh0.005-0.0272.2622.239
20Feh0.005-0.0272.2622.239
21Feh0.005-0.0272.2622.239
22Feh0.005-0.0272.2622.239
23Feh0.005-0.0272.2622.239
24Feh0.005-0.0272.2622.239
25Feh0.005-0.0272.2622.239
26Feh0.005-0.0272.2622.239
27Feh0.005-0.0272.2622.239
28Feh0.005-0.0272.2622.239
29Feh0.005-0.0272.2622.239
30Feh0.005-0.0272.2622.239
31Fec0.006-0.0342.4352.406
32Fec0.006-0.0342.4352.406
33Fed0.002-0.0292.3592.332
34Fed0.002-0.0292.3592.332
35Fed0.002-0.0292.3592.332
36Fed0.002-0.0292.3592.332
37Fed0.002-0.0292.3592.332
38Fed0.002-0.0292.3592.332
39Fed0.002-0.0292.3592.332
40Fed0.002-0.0292.3592.332
41Fec0.006-0.0342.4352.406
42Fec0.006-0.0342.4352.406
43Fec0.006-0.0342.4352.406
44Fec0.006-0.0342.4352.406
45Fec0.007-0.0322.3532.328
46Fec0.007-0.0322.3532.328
47Fec0.007-0.0322.3532.328
48Fea0.006-0.0262.0862.066
49Fea0.006-0.0262.0862.066
50Fea0.006-0.0262.0862.066
51Fec0.007-0.0322.3532.328
52Fec0.007-0.0322.3532.328
53Fed0.002-0.0292.3592.332
54Fec0.007-0.0322.3532.328

Convex Hull: Sm-Fe

Energy above hull 0.019 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 MAGMOM54*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 = 54*5.0
NCORE = 4
NELM = 120
NSW = 100
POTIM = 0.2
PREC = Normal
SIGMA = 0.05

Brillouin-Zone Sampling

SchemeGamma
Mesh5 × 5 × 1
Maximum reciprocal spacing0.28187 Å−1
View exact KPOINTS
pymatgen with grid density = 1000 / number of atoms
0
Gamma
5 5 1

PAW Potentials

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