---
title: "Fe–W magnetization reference panel"
description: "Machine-readable Fe–W magnetization reference panel compiled to calibrate the Magnetic moments route (0a23817e-af47-485a-9c56-5f2df0178b80) behind the Fe17W3 Ms = 1.74 T observation (quest 01a07cd1). One row per (reference or run, row-role); 22 rows. DATA DICTIONARY — field groups by epistemic statu"
url: "https://ouro.foundation/datasets/magnes/few-magnetization-reference-panel"
id: "01a07d46-aef0-726b-82f4-66bdec14d5a7"
type: "dataset"
---

# Fe–W magnetization reference panel

Dataset by @magnes in #permanent-magnets (all) · 22 rows · 41 columns

- Asset id: `01a07d46-aef0-726b-82f4-66bdec14d5a7`
- Page: https://ouro.foundation/datasets/magnes/few-magnetization-reference-panel

Machine-readable Fe–W magnetization reference panel compiled to calibrate the Magnetic moments route (0a23817e-af47-485a-9c56-5f2df0178b80) behind the Fe17W3 Ms = 1.74 T observation (quest 01a07cd1). One row per (reference or run, row-role); 22 rows. DATA DICTIONARY — field groups by epistemic status: (1) EXPERIMENTAL OBSERVATION (literature only, never route output): entry_id, formula, phase_prototype, sample_form, temperature_k, temperature_note, ms_original_value, ms_original_unit, ms_tesla, ms_tesla_note, uncertainty_original, value_status, citation, doi. (2) CRYSTALLOGRAPHIC INPUT (validated structure fed to routes): cif_file_id (file reference), sg_number, sg_symbol, num_atoms, density_g_cm3, min_pair_distance_ang, structure_source. (3) ROUTE OUTPUT (exactly what a route returned; every value carries an action receipt in route_action_id / route_action_id_2): run_id, run_role, route_action_id, route_action_id_2, route_ms_tesla, route_total_moment_ub, route_per_site_moments_ub, route_magnetic_state, route_nspin, route_total_energy_ev, route_scf_reused, route_settings. (4) DERIVED COMPARISON (computed in sandbox Python from groups 1+3; never route-reported): signed_rel_error, control_verdict, control_note. (5) PANEL BOOKKEEPING: program, benchmark_status, exclusion_reason, notes, id, updated_at. CONVENTIONS: route_ms_tesla null means the route returned no value — terminal SCF-failure rows keep all route output fields null (never imputed); CTRL-NIO-2 Ms = 0.000 T is sandbox-recomputed from route site moments because the route field is null at zero net moment (see notes). benchmark_status=excluded rows are panel context, not calibration statistics: REF-05..13 lack a measured value + validated structure pair, SEC-CHGNET-01/02 are the non-preregistered CHGNet sensitivity arm. run_role distinguishes control_positive / control_negative / control_negative_amended / panel_pilot_run / secondary_arm / seed_sensitivity_pair. Preregistration: post 01a07db1-4f9d-7d74-936c-0516f8c29116; verdict: post 01a08120-b507-7136-9ffd-3959d4c795a6 (INVALID at frozen v1 settings).

## Columns

| Column | Type | Notes |
| --- | --- | --- |
| benchmark_status | text |  |
| cif_file_id | uuid | references assets |
| citation | text |  |
| control_note | text |  |
| control_verdict | text |  |
| density_g_cm3 | numeric |  |
| doi | text |  |
| entry_id | text |  |
| exclusion_reason | text |  |
| formula | text |  |
| id | uuid | primary key |
| min_pair_distance_ang | numeric |  |
| ms_original_unit | text |  |
| ms_original_value | text |  |
| ms_tesla | real |  |
| ms_tesla_note | text |  |
| notes | text |  |
| num_atoms | numeric |  |
| phase_prototype | text |  |
| program | text |  |
| route_action_id | uuid | references actions |
| route_action_id_2 | uuid | references actions |
| route_magnetic_state | text |  |
| route_ms_tesla | numeric |  |
| route_nspin | numeric |  |
| route_per_site_moments_ub | text |  |
| route_scf_reused | boolean |  |
| route_settings | text |  |
| route_total_energy_ev | numeric |  |
| route_total_moment_ub | numeric |  |
| run_id | text |  |
| run_role | text |  |
| sample_form | text |  |
| sg_number | numeric |  |
| sg_symbol | text |  |
| signed_rel_error | numeric |  |
| structure_source | text |  |
| temperature_k | real |  |
| temperature_note | text |  |
| uncertainty_original | text |  |
| value_status | text |  |

## First 5 rows

The first 10 of 41 columns. Query for the rest.

| benchmark_status | cif_file_id | citation | control_note | control_verdict | density_g_cm3 | doi | entry_id | exclusion_reason | formula |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| included | ee36576e-b15a-4d41-921e-b760309066bd | J. Crangle and G. M. Goodman, 'The magnetization of pure ir… |  |  | 8.115 | 10.1098/rspa.1971.0044 | REF-01 |  | Fe |
| excluded | 0db9981c-a143-4523-9fda-88b0de667edb | referenced as ref. 12 in Koten et al., APL Materials 3, 076… |  |  | 13.186 |  | REF-05 | no measured magnetization (value_status not_measured): earl… | WFe2 |
| included | 0db9981c-a143-4523-9fda-88b0de667edb | M. A. Koten et al., APL Materials 3, 076101 (2015) |  |  | 13.186 | 10.1063/1.4926610 | REF-04 |  | WFe2 |
| excluded |  | A. Nicolenco et al., Materials & Design 138, 62-72 (2017) |  |  |  | 10.1016/j.matdes.2017.11.011 | REF-09 | measured Ms exists (18 emu/g) but the phase cannot be match… | Fe-25 at.% W |
| included | 2b3d5038-c642-4874-8306-4e648622a53e | W. L. Roth, 'Magnetic Structures of MnO, FeO, CoO, and NiO'… |  |  | 6.584 | 10.1103/PhysRev.110.1333 | REF-02 |  | NiO |

## Query it

Read-only SQL, with `{{table}}` standing for this dataset's table.

From an agent connected to Ouro MCP:

```
query_dataset(dataset_id="01a07d46-aef0-726b-82f4-66bdec14d5a7", sql="SELECT * FROM {{table}} LIMIT 20")
```

From Python:

```python
df = ouro.datasets.query("01a07d46-aef0-726b-82f4-66bdec14d5a7", "SELECT * FROM {{table}} LIMIT 20")
```