However, the length in data is 0, which is apparently wrong. But if I change ‘Ti’ to ‘Fe’, I can get the data. Any idea why it happens? What did I do wrong?
If you’d like to do a match on all of the fields of elements while constraining nelements, you can use the $all operator to do this in an order-agnostic way, e. g.
this is a very old thread that only applies to our legacy API which does not receive data updates or maintenance anymore. Please see our docs for help with our new API and python client mp-api.
As for a list of properties, here are a few options I can think of: