| Similarly, superconductivity can be destroyed by applying a magnetic field that exceeds some critical value. |
| These chemically complex materials can, in fact, provide more information about superconductivity and magnetism than supposedly simple materials. |
| Strictly speaking, there are no examples of materials in which singlet superconductivity and ferromagnetism co-exist. |
| The modulation indicates a competing type of order that can also coexist with superconductivity. |
| However, they have revealed problems with existing theories of ferromagnetism and superconductivity that are likely to keep researchers busy for some time to come. |
| At the end of 2000 superconductivity in metal alloys and compounds appeared to remain trapped by a glass ceiling. |
