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Sm2Co7
Binary
Overview
Magnetic flux density0.774T
Magnetization density0.066μB Å−3
Total spin moment52.960μB cell−1
MP-reference hull distance0.012eV atom−1
Cell volume797.980Å3
Number of atoms54atoms
Chemical system Sm-Co
Calculation Converged
Final Relaxed Cell
Calculated-cell formulaCo42Sm12
a, b, c5.024, 5.024, 36.511 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume797.980 Å3
Volume per atom14.777 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
| Site | Element | Wyckoff position | Multiplicity | Site symmetry |
|---|---|---|---|---|
| Sm1 | Sm | 6c | 6 | 3m |
| Sm2 | Sm | 6c | 6 | 3m |
| Co1 | Co | 18h | 18 | .m |
| Co2 | Co | 9d | 9 | .2/m |
| Co3 | Co | 6c | 6 | 3m |
| Co4 | Co | 6c | 6 | 3m |
| Co5 | Co | 3a | 3 | -3m |
Prototype Relationship
Parent space groupR-3m (No. 166)
AFLOW ANRL labelA7B2_hR18_166_a2cdh_2c-001
Cell Magnetization
Total spin moment52.960 μB cell−1
Moment per atom0.981 μB atom−1
Magnetization density0.066 μB Å−3
μ0M0.774 T
PAW-sphere total56.040 μB cell−1
Interstitial remainder-3.080 μB cell−1
Sublattice Magnetization
Rare-earth sublattice-3.006 μB
Transition-metal sublattice59.046 μB
RE–TM alignmentAntiparallel
Element-Resolved Moments
| Element | Atoms | PAW-sphere totalμB | Mean per atomμB atom−1 | RangeμB |
|---|---|---|---|---|
| Sm | 12 | -3.006 | -0.251 | -0.270 to -0.231 |
| Co | 42 | 59.046 | 1.406 | 1.173 to 1.529 |
Site-Resolved PAW-Sphere Moments
| Site | Element | Wyckoff | sμB | pμB | dμB | TotalμB |
|---|---|---|---|---|---|---|
| 1 | Sm | c | -0.009 | -0.023 | -0.199 | -0.231 |
| 2 | Sm | c | -0.009 | -0.023 | -0.199 | -0.231 |
| 3 | Sm | c | -0.009 | -0.023 | -0.199 | -0.231 |
| 4 | Sm | c | -0.009 | -0.023 | -0.199 | -0.231 |
| 5 | Sm | c | -0.016 | -0.026 | -0.227 | -0.270 |
| 6 | Sm | c | -0.016 | -0.026 | -0.227 | -0.270 |
| 7 | Sm | c | -0.009 | -0.023 | -0.199 | -0.231 |
| 8 | Sm | c | -0.009 | -0.023 | -0.199 | -0.231 |
| 9 | Sm | c | -0.016 | -0.026 | -0.227 | -0.270 |
| 10 | Sm | c | -0.016 | -0.026 | -0.227 | -0.270 |
| 11 | Sm | c | -0.016 | -0.026 | -0.227 | -0.270 |
| 12 | Sm | c | -0.016 | -0.026 | -0.227 | -0.270 |
| 13 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 14 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 15 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 16 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 17 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 18 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 19 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 20 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 21 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 22 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 23 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 24 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 25 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 26 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 27 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 28 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 29 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 30 | Co | h | -0.005 | -0.035 | 1.364 | 1.324 |
| 31 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 32 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 33 | Co | c | 0.002 | -0.041 | 1.568 | 1.529 |
| 34 | Co | c | 0.002 | -0.041 | 1.568 | 1.529 |
| 35 | Co | c | 0.002 | -0.041 | 1.568 | 1.529 |
| 36 | Co | c | 0.002 | -0.041 | 1.568 | 1.529 |
| 37 | Co | c | 0.002 | -0.041 | 1.568 | 1.529 |
| 38 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 39 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 40 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 41 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 42 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 43 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 44 | Co | d | -0.006 | -0.038 | 1.538 | 1.495 |
| 45 | Co | c | 0.003 | -0.037 | 1.545 | 1.511 |
| 46 | Co | c | 0.003 | -0.037 | 1.545 | 1.511 |
| 47 | Co | c | 0.003 | -0.037 | 1.545 | 1.511 |
| 48 | Co | a | -0.006 | -0.046 | 1.225 | 1.173 |
| 49 | Co | a | -0.006 | -0.046 | 1.225 | 1.173 |
| 50 | Co | a | -0.006 | -0.046 | 1.225 | 1.173 |
| 51 | Co | c | 0.003 | -0.037 | 1.545 | 1.511 |
| 52 | Co | c | 0.003 | -0.037 | 1.545 | 1.511 |
| 53 | Co | c | 0.002 | -0.041 | 1.568 | 1.529 |
| 54 | Co | c | 0.003 | -0.037 | 1.545 | 1.511 |
Convex Hull: Sm-Co
Energy above hull 0.012 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 MAGMOM12*5.0 42*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 = 12*5.0 42*2.0 NCORE = 4 NELM = 120 NSW = 100 POTIM = 0.2 PREC = Normal SIGMA = 0.05
Brillouin-Zone Sampling
SchemeGamma
Mesh5 × 5 × 1
Maximum reciprocal spacing0.28884 Å−1
View exact KPOINTS
pymatgen with grid density = 1091 / number of atoms 0 Gamma 5 5 1
PAW Potentials
| Element | VASP TITEL | ZVAL | ENMAXeV |
|---|---|---|---|
| Sm | PAW_PBE Sm_3 07Sep2000 | 11.000 | 177.087 |
| Co | PAW_PBE Co 06Sep2000 | 9.000 | 267.969 |