Two superconductors with greatly different values of critical magnetic field are combined to produce a fast, simple, switch for computer elements.

In magnet applications the high critical magnetic field may prove more valuable than the high T itself.

Some cuprates have an upper critical field of about 100 tesla.

They also are highly magnetic and can be perfect diamagnets below a lower critical magnetic field.

That growing difference is diverting people from some critical fields, experts say.

First, sub-divisions would only serve to create the appearance of a more precisely demarcated critical field than is in fact the case.

The people we are out to get are the scientists and engineers, especially in critical fields like computers and genetics.

Especially weak are the critical fields of epidemiology, the policy and social sciences and management research.

Niobium-germanium-aluminium has an upper critical field of about 10 Tesla.

May God bless the men and women who serve in this critical field.