Tl-2021-08-04-all-icsd

../../_images/pareto261.png

The current structure dataset comprises 11671 structures generated from unique ICSD prototype structures composed of single elements with zero oxidation state. A more detailed procedure is found in Phys. Rev. B 99, 214108 (2019). The procedure to estimate interatomic potentials from the dataset is found in Phys. Rev. B 99, 214108 (2019) and Phys. Rev. B 102, 174104 (2020).

Improvement from **-dataset-10000-all-icsd

  • More robust for structures with a small interatomic distance

  • More robust for structures with a large interatomic distance

  • More complex potential models are included.

  • MLPs are estimated without using DFT stress tensors.

  • MLPs are estimated by using small regression weights for energetically unstable structures.

Predictions using Pareto optimal MLPs

../../_images/prediction-ecoh-volume155.png

The cohesive energy and volume are obtained by performing a local structure optimization from the DFT equilibrium structure. In addition, the DFT equilibrium structure is obtained by optimizing a prototype structure included in ICSD, and the prototype is used as the structure legend in the figure. Therefore, the structure type of the converged structure is sometimes different from that shown in the legend even if the potential energy surface predicted by MLP is almost the same as the true one.

The other properties predicted by each Pareto optimal MLP are available from column Predictions in the following table.

Pareto optimals

Name

Time [ms] (1core/36cores)

RMSE [meV/atom]/[eV/A]

Predictions

Files

pair-1

0.012 / 0.003

182.27 / 0.2689

pair-14

0.017 / 0.038

37.843 / 0.0967

pair-27

0.018 / 0.005

14.751 / 0.0733

pair-28

0.027 / 0.007

10.981 / 0.0618

pair-29

0.039 / 0.009

9.0469 / 0.0610

pair-32

0.051 / 0.010

7.9865 / 0.0592

predictions

mlp.lammps input log

pair-33

0.069 / 0.012

7.0908 / 0.0574

predictions

mlp.lammps input log

pair-35

0.121 / 0.021

7.0794 / 0.0569

predictions

mlp.lammps input log

pair-37

0.136 / 0.018

6.6274 / 0.0560

predictions

mlp.lammps input log

pair-38

0.171 / 0.022

6.0628 / 0.0546

predictions

mlp.lammps input log

gtinv-300

0.228 / 0.023

3.7524 / 0.0271

predictions

mlp.lammps input log

gtinv-235

0.281 / 0.023

3.5426 / 0.0259

predictions

mlp.lammps input log

gtinv-170

0.282 / 0.022

3.5339 / 0.0261

predictions

mlp.lammps input log

gtinv-303

0.339 / 0.029

2.4778 / 0.0223

predictions

mlp.lammps input log

gtinv-175

0.376 / 0.031

2.3750 / 0.0212

predictions

mlp.lammps input log

gtinv-240

0.393 / 0.030

2.3750 / 0.0211

predictions

mlp.lammps input log

gtinv-312

0.472 / 0.036

2.0954 / 0.0211

predictions

mlp.lammps input log

gtinv-190

0.523 / 0.038

2.0354 / 0.0198

predictions

mlp.lammps input log

gtinv-255

0.573 / 0.040

1.9991 / 0.0197

predictions

mlp.lammps input log

gtinv-195

0.748 / 0.053

1.7952 / 0.0189

predictions

mlp.lammps input log

gtinv-260

0.787 / 0.053

1.7763 / 0.0188

predictions

mlp.lammps input log

gtinv-265

0.983 / 0.070

1.6653 / 0.0187

predictions

mlp.lammps input log

gtinv-205

1.307 / 0.088

1.6237 / 0.0190

predictions

mlp.lammps input log

gtinv-270

1.323 / 0.091

1.5689 / 0.0189

predictions

mlp.lammps input log

gtinv-342

1.775 / 0.083

1.4360 / 0.0179

predictions

mlp.lammps input log

gtinv-330

1.834 / 0.118

1.4002 / 0.0182

predictions

mlp.lammps input log

gtinv-220

1.890 / 0.117

1.3995 / 0.0174

predictions

mlp.lammps input log

gtinv-345

1.915 / 0.092

1.2764 / 0.0178

predictions

mlp.lammps input log

gtinv-319

2.928 / 0.164

1.1804 / 0.0178

predictions

mlp.lammps input log

gtinv-266

2.966 / 0.169

1.1675 / 0.0171

predictions

mlp.lammps input log

gtinv-346

3.371 / 0.155

1.0643 / 0.0167

predictions

mlp.lammps input log

gtinv-267

3.516 / 0.196

1.0594 / 0.0163

predictions

mlp.lammps input log

gtinv-354

3.661 / 0.154

1.0517 / 0.0161

predictions

mlp.lammps input log

gtinv-349

3.839 / 0.178

0.9850 / 0.0174

predictions

mlp.lammps input log

gtinv-363

4.644 / 0.209

0.9698 / 0.0165

predictions

mlp.lammps input log

gtinv-350

6.441 / 0.340

0.9213 / 0.0166

predictions

mlp.lammps input log

gtinv-287

6.946 / 0.371

0.9051 / 0.0152

predictions

mlp.lammps input log

gtinv-232

10.649 / 0.547

0.8991 / 0.0152

predictions

mlp.lammps input log

gtinv-297

10.655 / 0.543

0.8896 / 0.0151

predictions

mlp.lammps input log

gtinv-224

14.066 / 0.687

0.8657 / 0.0148

predictions

mlp.lammps input log

gtinv-289

14.825 / 0.712

0.8544 / 0.0147

predictions

mlp.lammps input log

gtinv-234

21.888 / 1.017

0.8481 / 0.0148

predictions

mlp.lammps input log

gtinv-299

22.419 / 1.031

0.8451 / 0.0148

predictions

mlp.lammps input log

Column “Time” shows the time required to compute the energy and forces for 1 MD step and 1 atom, which is estimated from a simulation of 10 runs for a structure with 284 atoms using a workstation with Intel(R) Xeon(R) CPU E5-2695 v4 @ 2.10GHz. Note that the MLPs should be carefully used for extreme structures. The MLPs often return meaningless values for them.

  • All Pareto optimal MLPs are available here.