Currently Bismuth isn't for magnetic alloys.

A particular divergence in the calculated properties of dilute magnetic alloys is known as the Abrikosov-Suhl resonance.

This magnetic alloy is used for thermocouples and thermocouple extension wire.

Alnico, any of several magnetic alloys composed of iron, aluminum, nickel, and cobalt.

Thermlectrium is a magnetic alloy, the unique property being that its crystals are of almost exactly uniform size.

Cobalt is used in the preparation of magnetic, wear-resistant and high-strength alloys.

I suspect that Nick is asking about magnets made of such magnetic alloys; "super magnet" would certainly be an appropriate term.

Permalloy is a nickel-iron magnetic alloy, with about 20% iron and 80% nickel content.

Vicalloy is a family of cobalt-iron-vanadium wrought permanently magnetic alloys.

Cobalt is also used in magnetic alloys and in cutting and wear-resistant materials such as cemented carbides.