OPTIMADE provider "Materials Cloud Archive" (id: mcloudarchive
)
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General information
Short description: Databases contributed by the community to the Materials Cloud Archive
Project homepage: https://archive.materialscloud.org
Index Meta-Database URL:
https://www.materialscloud.org/optimade/archive
Number of structures: 38,060
Detailed information
/info
)State of the /info
endpoint of the index meta-database
found
found
Index metaDB versionVersion of the index meta-database
v1
Index metaDB (/links
)State of the /links
endpoint of the index meta-database
found
found
Databases served by this provider
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MC Archive 5p-vq (
5p-vq
)https://optimade.materialscloud.org/archive/5p-vq
V. Trinquet et al., Optical materials discovery and design with federated databases and machine learning, Materials Cloud Archive 2024.114 (2024) doi: 10.24435/materialscloud:5p-vqProperties served by this database:
By entry type (click to expand):-
references
- The full list of standard OPTIMADE properties.
-
structures
- The full list of standard OPTIMADE properties.
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_mcloudarchive_band_gap
Unit: eV
Description: The PBE band gap for this structure reported by the source database.
Type: float
-
_mcloudarchive_refractive_index
Description: The refractive index computed at the PBE level by DFPT for this structure, following the atomate2 dielectric workflow.
Type: float
Validation
ValidationResults of validation Passed 44 / 45
❌ https://optimade.materialscloud.org/archive/5p-vq/v1/structures?filter=last_modified%20%3E=%20%222024-08-05T12:53:10.227548%22
ResponseError: Supposedly inclusive query 'last_modified >= "2024-08-05T12:53:10.227548"' did not include original entry ID 'agm002135289' (with field 'last_modified' = 2024-08-05T12:53:10.227548) potentially indicating a problem with filtering on this field.
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-
MC Archive c8-gy (
c8-gy
)https://optimade.materialscloud.org/archive/c8-gy
Z. Wang et al., Machine learning-accelerated discovery of A₂BC₂ ternary electrides with diverse anionic electron densities, Materials Cloud Archive 2023.181 (2023) doi: 10.24435/materialscloud:c8-gyProperties served by this database:
By entry type (click to expand):-
references
- The full list of standard OPTIMADE properties.
-
structures
- The full list of standard OPTIMADE properties.
-
_mcloudarchive_convex_hull_distance
Description: The distance in energy that this structure lies from the (in this case) Materials Project convex hull, as of Nov 2023.
Type: float
-
_mcloudarchive_elf_max
Unit: dimensionless
Description: The maximum value of the electron localisation function (ELF) within the unit cell, can be used as an indicator of electride nature.
Type: float
-
_mcloudarchive_formation_energy_per_atom
Description: The formation energy per atom as computed by `atomate2`'s `MPGGARelax` workflow, using the Materials Project elemental chemical potenitals (as of Nov 2023).
Type: float
-
_mcloudarchive_signed_convex_hull_distance
Description: The signed distance in energy that this structure lies from the (in this case) Materials Project convex hull, as of Nov 2023.
Type: float
Validation
ValidationResults of validation Passed 44 / 45
❌ https://optimade.materialscloud.org/archive/c8-gy/v1/structures?filter=last_modified%20%3E=%20%222024-08-05T12:53:13.621464%22
ResponseError: Supposedly inclusive query 'last_modified >= "2024-08-05T12:53:13.621464"' did not include original entry ID 'Ce2LuSi2' (with field 'last_modified' = 2024-08-05T12:53:13.621464) potentially indicating a problem with filtering on this field.
-
-
MC Archive vg-ya (
vg-ya
)https://optimade.materialscloud.org/archive/vg-ya
L. Kahle et al., High-throughput computational screening for solid-state Li-ion conductors, Materials Cloud Archive 2024.65 (2024) doi: 10.24435/materialscloud:vg-yaProperties served by this database:
By entry type (click to expand):-
references
- The full list of standard OPTIMADE properties.
-
structures
- The full list of standard OPTIMADE properties.
Validation
ValidationResults of validation Passed 42 / 46
❌ https://optimade.materialscloud.org/archive/vg-ya/v1/structures?filter=last_modified%20%3E=%20%222023-06-12T10:45:54Z%22
ResponseError: HTTPSConnectionPool(host='optimade.materialscloud.org', port=443): Read timed out. (read timeout=100)
❌ https://optimade.materialscloud.org/archive/vg-ya/v1/structures?filter=last_modified%20%3E=%20%222023-06-12T10:45:54Z%22
ResponseError: Unable to perform mandatory query 'last_modified >= "2023-06-12T10:45:54Z"', which raised the error: ResponseError: HTTPSConnectionPool(host='optimade.materialscloud.org', port=443): Read timed out. (read timeout=100)
❌ https://optimade.materialscloud.org/archive/vg-ya/v1/structures?filter=_crazyprovider_field=2
ResponseError: HTTPSConnectionPool(host='optimade.materialscloud.org', port=443): Read timed out. (read timeout=100)
❌ https://optimade.materialscloud.org/archive/vg-ya/v1/structures?filter=_crazyprovider_field=2
ResponseError: Failed to handle field from unknown provider; should return without affecting filter results
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-
MC Archive zk-gc (
zk-gc
)https://optimade.materialscloud.org/archive/zk-gc
Y. He et al., Machine learning on multiple topological materials datasets, Materials Cloud Archive 2025.32 (2025) doi: 10.24435/materialscloud:zk-gcProperties served by this database:
By entry type (click to expand):-
references
- The full list of standard OPTIMADE properties.
-
structures
- The full list of standard OPTIMADE properties.
-
_optimake_icsd_id
Description: Provides the corresponding identifier of the Inorganic Crystallographic Structural Database when available
Type: string
-
_optimake_mat_type
Description: Provides the topological type according to the Materiae classification
Type: string
-
_optimake_mp_id
Description: Provides the corresponding identifier of the Materials Project when available
Type: string
-
_optimake_subset
Description: M is Materiae, T is the Topological Materials Database
Type: string
-
_optimake_tqc_type
Description: Provides the topological type according to Topological Quantum Chemistry theory
Type: string
Validation
ValidationResults of validation Passed 44 / 50
❌ https://optimade.materialscloud.org/archive/zk-gc/v1/structures?filter=last_modified%20%3E=%20%222025-02-11T21:08:29.675607%22
ResponseError: Supposedly inclusive query 'last_modified >= "2025-02-11T21:08:29.675607"' did not include original entry ID 'MAT00000020' (with field 'last_modified' = 2025-02-11T21:08:29.675607) potentially indicating a problem with filtering on this field.
❌ https://optimade.materialscloud.org/archive/zk-gc/v1/structures?filter=structure_features%20HAS%20ANY%20%22assemblies%22,%22disorder%22,%22implicit_atoms%22,%22site_attachments%22
ResponseError: Found unknown field '_optimake_subset' that did not start with provider prefix '_mcloudarchive_'
❌ https://optimade.materialscloud.org/archive/zk-gc/v1/;%20testing%20queries%20for%20structures-%3E_optimake_mat_type
ResponseError: Found unknown field '_optimake_mat_type' that did not start with provider prefix '_mcloudarchive_'
❌ https://optimade.materialscloud.org/archive/zk-gc/v1/;%20testing%20queries%20for%20structures-%3E_optimake_tqc_type
ResponseError: Found unknown field '_optimake_tqc_type' that did not start with provider prefix '_mcloudarchive_'
❌ https://optimade.materialscloud.org/archive/zk-gc/v1/;%20testing%20queries%20for%20structures-%3E_optimake_mp_id
ResponseError: Found unknown field '_optimake_mp_id' that did not start with provider prefix '_mcloudarchive_'
❌ https://optimade.materialscloud.org/archive/zk-gc/v1/;%20testing%20queries%20for%20structures-%3E_optimake_icsd_id
ResponseError: Found unknown field '_optimake_icsd_id' that did not start with provider prefix '_mcloudarchive_'
-