---
title: "Exchange couplings (Jij)"
description: "Heisenberg exchange pair couplings (566 pairs) from TB2J"
url: "https://ouro.foundation/files/mmoderwell/exchange-couplings-jij"
id: "bae7c013-a57e-4f41-b65a-2c10196a1484"
type: "file"
---

# Exchange couplings (Jij)

File by @mmoderwell in #permanent-magnets (all) · .json · 72.5 KB

- Asset id: `bae7c013-a57e-4f41-b65a-2c10196a1484`
- Page: https://ouro.foundation/files/mmoderwell/exchange-couplings-jij

Heisenberg exchange pair couplings (566 pairs) from TB2J

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/847f4445-78ee-41b1-913b-5bd155c71b13/995a9dc5-aa95-4b36-b8b7-afd5c58af602.json?v=1785440231221
- Over Ouro MCP: `download_asset(id="bae7c013-a57e-4f41-b65a-2c10196a1484")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="bae7c013-a57e-4f41-b65a-2c10196a1484")`, then pass it as `input_assets={"file": "bae7c013-a57e-4f41-b65a-2c10196a1484"}`.
- From Python: `ouro.files.retrieve("bae7c013-a57e-4f41-b65a-2c10196a1484")`