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Sm2Ni9

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Crystal Structure

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Overview

Magnetic flux density0.152T
Magnetization density0.013μB Å−3
Total spin moment-2.101μB cell−1
MP-reference hull distance0.092eV atom−1
Cell volume161.020Å3
Number of atoms11atoms
Chemical system Sm-Ni Calculation Converged

Final Relaxed Cell

Calculated-cell formulaNi9Sm2
a, b, c4.888, 4.888, 7.783 Å
α, β, γ90.000, 90.000, 120.000°
Cell volume161.020 Å3
Volume per atom14.638 Å3 atom−1
Formula units, Z1

Final Symmetry

Space groupP-6m2 (No. 187)
Crystal systemHexagonal
Point group-6m2
Hall symbolP -6 2
Pearson symbolhP11

Occupied Wyckoff Sites

SiteElementWyckoff positionMultiplicitySite symmetry
Sm1Sm1f1-6m2
Sm2Sm1e1-6m2
Ni1Ni6n6.m.
Ni2Ni1b1-6m2
Ni3Ni1c1-6m2
Ni4Ni1a1-6m2

Prototype Relationship

Cell Magnetization

Total spin moment-2.101 μB cell−1
Moment per atom-0.191 μB atom−1
Magnetization density0.013 μB Å−3
μ0M0.152 T
PAW-sphere total-2.278 μB cell−1
Interstitial remainder0.177 μB cell−1

Sublattice Magnetization

Rare-earth sublattice0.090 μB
Transition-metal sublattice-2.368 μB
RE–TM alignmentAntiparallel

Element-Resolved Moments

ElementAtomsPAW-sphere totalμBMean per atomμB atom−1RangeμB
Sm20.0900.0450.042 to 0.048
Ni9-2.368-0.263-0.408 to -0.194

Site-Resolved PAW-Sphere Moments

SiteElementWyckoffsμBpμBdμBTotalμB
1Smf0.0020.0040.0420.048
2Sme0.0020.0040.0350.042
3Nin-0.0010.003-0.263-0.261
4Nin-0.0010.003-0.263-0.261
5Nin-0.0010.003-0.263-0.261
6Nin-0.0010.003-0.263-0.261
7Nin-0.0010.003-0.263-0.261
8Nin-0.0010.003-0.263-0.261
9Nib0.0000.006-0.200-0.194
10Nic-0.0010.003-0.201-0.200
11Nia-0.0030.005-0.410-0.408

Convex Hull: Sm-Ni

Energy above hull 0.092 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 MAGMOM11*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 = 11*5.0
NCORE = 4
NELM = 120
NSW = 100
POTIM = 0.2
PREC = Normal
SIGMA = 0.05

Brillouin-Zone Sampling

SchemeGamma
Mesh5 × 5 × 3
Maximum reciprocal spacing0.29689 Å−1
View exact KPOINTS
pymatgen with grid density = 1096 / number of atoms
0
Gamma
5 5 3

PAW Potentials

ElementVASP TITELZVALENMAXeV
SmPAW_PBE Sm_3 07Sep200011.000177.087
NiPAW_PBE Ni_pv 06Sep200016.000367.945