Direct Observation of Vortex and Meissner Domains in a Ferromagnetic Superconductor EuFe2(As0.79P0.21)2 Single Crystal
| Autor: | Tsuyoshi Tamegai, Vasily S. Stolyarov, S. V. Egorov, M. S. Sidel’nikov, Ivan Veshchunov, Guanghan Cao, O. V. Skryabina, L. Ya. Vinnikov, Wen-He Jiao |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Condensed matter physics Magnetic domain Transition temperature Atmospheric temperature range Ferromagnetic superconductor 01 natural sciences 010305 fluids & plasmas Vortex Ferromagnetism Condensed Matter::Superconductivity 0103 physical sciences Magnetic force microscope 010306 general physics Single crystal |
| Zdroj: | JETP Letters. 109:521-524 |
| ISSN: | 1090-6487 0021-3640 |
| DOI: | 10.1134/s0021364019080137 |
| Popis: | A spontaneous vortex structure in magnetic domains (vortex domains) has been visualized by the decoration technique near the ferromagnetic transition temperature (TC = 18 K) in a ferromagnetic superconductor EuFe2(As0.79P0.21)2 single crystal with the superconducting transition temperature (TSC = 22 K). Meissner domains previously observed by magnetic force microscopy have also been observed in a narrow temperature range (ΔT ∼ 1 K) near TC. A domain structure with the alternating direction of the magnetic flux has been observed upon cooling below TC. Experimental results are in reasonable agreement with a theoretical estimate of the periods of domain structures and the temperature interval below TC in which they are observed. |
| Databáze: | OpenAIRE |
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