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Pinning enhancement in MgB2-magnetic particles composites |
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| Authors: | PN Togoulev NM Suleimanov K Conder |
| Institution: | aE.K. Zavoisky Physical-Technical Institute, Russian Academy of Sciences, Sibirskii trakt 10/7, 420029 Kazan, Russian Federation bPaul Scherrer Institute, CH-5232 Villigen PSI, Switzerland |
| Abstract: | The temperature dependence of microwave absorption hysteresis is measured in superconducting composites, prepared from MgB2 and powders of magnetic Ni, Co, and non-magnetic Ti. In MgB2–Ni and MgB2–Ti composites the increase of microwave absorption hysteresis, by 150% and 25%, respectively, is found. In both cases this is connected with pinning enhancement. In MgB2–Co composites a decrease of the superconducting transition temperature and worsening of pinning properties are observed. |
| Keywords: | MgB2 composites Magnetic pinning Microwave absorption |
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