JARVIS-FF NIST Disclaimer

Structural formula: Al5Co2

Force-field: Mishin-Ni-Al-Co-2013.eam.alloy

Space group : Cmcm

JARVIS ID: JLMP-1265

Download input files

Elastic tensor (GPa)

Elastic tensor for the conventional cell of the system were calculated with LAMMPS in.elastic script at 0 K [Source] . Similar script can be used for temperature dependent elastic constants and will be available here soon. WARNING! Please note that the starting lattice parameters of crystal structures were taken from density functional theory (DFT) and not from experiments. Generic minimization parameters were chosen for LAMMPS run rather than testing them for each individual case such as energy convergence criterion and so on. Hence, there are chances that the calculation gets trapped in a local energy minima. Please read carefully the assumptions taken during calculations in the in.elastic script and use the data at your own risk

32.6 66.5 50.4 -0.0 -0.0 -62.2
66.5 -32.0 56.4 0.0 -0.0 35.7
50.4 56.4 115.1 -0.0 -0.0 4.3
-0.0 0.0 -0.0 58.0 3.6 0.0
-0.0 -0.0 -0.0 3.6 53.9 0.0
-62.2 35.7 4.3 0.0 0.0 6.1

Bv: 51.4 GPa

Gv: 19.8 GPa

Vacancy-formation energy (eV)

Vacancy formation energies were calculated by deleting the symmterically distinct atoms in the system [Source]. In the table, vacancy forming element, its multiplicity, and defect-formation energy are given. The reference element cohesive energies were calculated with the most stable structure for the element found on materials project database. Defect structures were constructed with the fully-relaxed bulk system as input. For defect-structures energetics calculations, constant volume ensemble was used. We impose the defect structures to be at least 1.5 nm large in all directions.

Element Mult. Value
Al 2 0.525 Download cif file
Al 2 1.377 Download cif file
Al 4 1.138 Download cif file
Al 4 0.538 Download cif file
Al 8 -0.049 Download cif file
Co 2 1.325 Download cif file
Co 2 2.194 Download cif file
Co 4 0.741 Download cif file

Surface energy (J/m2)

Surface energies were calculated for symmterically distinct crystal surfaces . In the table, (hkl) indices and surface enegies are given. For surface-structure energetics, constant volume ensemble was used. We impose the slab thickness to be at least 2 nm and vaccum size of 2.5 nm. The maximum miller index is taken as 3.

Surface Value
(1 0 1) 1.757 Download cif file
(0 1 1) 1.762 Download cif file
(1 0 3) 1.768 Download cif file
(1 1 0) 1.794 Download cif file
(1 0 0) 1.798 Download cif file
(1 0 2) 1.799 Download cif file
(0 1 3) 1.814 Download cif file
(0 3 1) 1.827 Download cif file
(0 3 2) 1.836 Download cif file
(0 1 2) 1.846 Download cif file
(0 2 3) 1.847 Download cif file
(2 0 3) 1.852 Download cif file
(3 0 1) 1.856 Download cif file
(2 0 1) 1.88 Download cif file
(3 1 0) 1.881 Download cif file
(0 0 1) 1.883 Download cif file
(1 3 0) 1.887 Download cif file
(2 1 0) 1.892 Download cif file
(1 2 0) 1.898 Download cif file
(3 3 1) 1.899 Download cif file
(3 1 3) 1.901 Download cif file
(3 2 0) 1.906 Download cif file
(3 0 2) 1.911 Download cif file
(2 1 2) 1.915 Download cif file
(3 1 2) 1.921 Download cif file
(2 3 0) 1.927 Download cif file
(0 2 1) 1.952 Download cif file
(3 2 1) 1.961 Download cif file
(3 1 1) 1.989 Download cif file
(0 1 0) 2.002 Download cif file
(2 1 1) 2.002 Download cif file
(1 1 2) 2.012 Download cif file
(2 2 3) 2.019 Download cif file
(2 1 3) 2.062 Download cif file
(1 1 3) 2.063 Download cif file
(3 2 3) 2.08 Download cif file
(1 3 3) 2.083 Download cif file
(2 3 2) 2.092 Download cif file
(1 1 1) 2.103 Download cif file
(1 2 2) 2.106 Download cif file
(1 3 1) 2.11 Download cif file
(2 3 3) 2.111 Download cif file
(1 3 2) 2.121 Download cif file
(1 2 3) 2.143 Download cif file
(3 3 2) 2.147 Download cif file
(3 2 2) 2.159 Download cif file
(2 3 1) 2.168 Download cif file
(2 2 1) 2.205 Download cif file
(1 2 1) 2.307 Download cif file

Phonon

Phonons were obtained by making an interface of JARVIS-FF with Phonopy package at 0 K [Source] . For deformed-structures, constant volume ensemble was used. The deofrmed structures were taken of at least 1.5 nm size in all directions. The band-indices for phonon bandstructure was obtained with Pymatgen. The phonon representation were obtained with phonopy. "I" and "R" denotes infrared and Raman active modes respectively

Visualize Phonons here
Phonon mode (cm-1) Representation
-0.8362640631 None
-0.7884237097 None
-0.0004225812 B3u I
57.3506090758 None
59.7780018069 None
66.0818609729 B3g R
66.5765375626 None
73.191085807 None
89.3696742275 None
90.6517031871 None
94.9959294865 None
95.6916352387 None
104.792710062 None
105.325652689 None
110.909835558 None
113.640311093 None
119.358205577 None
121.008999506 None
130.082860006 None
131.776475063 None
131.805175295 None
144.74900983 None
149.07107686 None
152.529912461 None
155.920910697 None
156.53791456 None
157.056132518 None
160.679100042 None
162.542232193 None
163.070862675 None
169.228464304 None
169.279771488 None
175.20944262 None
181.610374251 None
182.683920643 None
183.488765704 None
183.877262365 None
184.583387266 None
188.4127152 None
193.492557256 None
199.044495968 None
200.365869131 None
201.964644764 None
207.0024919 None
208.069925079 None
216.504301926 None
226.014759849 None
234.637752676 None
237.922030247 None
239.968907245 None
240.579863842 None
241.591641734 Au
243.278625597 None
248.019396257 Ag R
249.421035394 Au
260.49228457 None
272.483634366 B2u I
273.602172383 None
274.380371563 None
282.383523609 B1u I
290.161343859 B3g R
292.015059463 None
293.839846826 B3u I
294.350332981 B1u I
312.702502931 B2g R
320.553161673 B2u I
332.937904285 B3g R
333.840275972 Au
353.302149578 B3u I
354.534819481 B1g R
360.163205978 B2u I
372.213793055 B1u I
374.887049954 B2g R
380.039741316 B2u I
382.855161115 B1u I
389.61094539 Ag R
395.095305904 B3u I
415.553474802 Ag R
430.84384963 B2u I
441.470887623 B1u I
448.433859057 B3g R
450.837315431 B1g R
468.914497878 Au
482.859830436 B3u I
All phonon mode at Gamma point (cm-1)
-0.8362640631
-0.7884237097
-0.0004225662
57.3506090758
59.7780018069
66.0818609729
66.5765375626
73.191085807
89.3696742275
90.6517031871
94.9959294865
95.6916352387
104.792710062
105.325652689
110.909835558
113.640311093
119.358205577
121.008999506
130.082860006
131.776475063
131.805175295
144.74900983
149.07107686
152.529912461
155.920910697
156.53791456
157.056132518
160.679100042
162.542232193
163.070862675
169.228464304
169.279771488
175.20944262
181.610374251
182.683920643
183.488765704
183.877262365
184.583387266
188.4127152
193.492557256
199.044495968
200.365869131
201.964644764
207.0024919
208.069925079
216.504301926
226.014759849
234.637752676
237.922030247
239.968907245
240.579863842
241.591641734
243.278625597
248.019396257
249.421035394
260.49228457
272.483634366
273.602172383
274.380371563
282.383523609
290.161343859
292.015059463
293.839846826
294.350332981
312.702502931
320.553161673
332.937904285
333.840275972
353.302149578
354.534819481
360.163205978
372.213793055
374.887049954
380.039741316
382.855161115
389.61094539
395.095305904
415.553474802
430.84384963
441.470887623
448.433859057
450.837315431
468.914497878
482.859830436

See also

Links to other databases or papers are provided below

JVASP-11965

mp-196

Energy above hull from mp (eV): 0.0