Superconductivity and ferromagnetism in Pd doped Y9Co7 |
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| Affiliation: | 1. Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland;2. Los Alamos National Laboratory, Los Alamos, NM 87545, USA;3. Department of Chemistry, Princeton University, Princeton, NJ 08544, USA;1. Department of Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia;2. Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes – UMR6226, F-35042 Rennes, France;1. Department of Physics and Institute of Basic Sciences, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea;2. School of Natural Sciences, National University of Science and Technology, Islamabad 44000, Pakistan;3. Institute of Chemical Engineering & Technology, University of Punjab, Lahore 54000, Pakistan;4. Whirlpool Corporation, Research and Technology Center, Benton Harbor, MI 49022, USA;5. Department of Physics, University of North Carolina, Charlotte, NC 28223, USA;1. Marian Smoluchowski Institute of Physics, Jagiellonian University, ?ojasiewicza 11, 30-348 Kraków, Poland;2. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Department of Solid State Physics, Al. Mickiewicza 30, 30-059 Kraków, Poland;3. Analytical Chemistry Department, Ivan Franko National University of Lviv, Kyryla and Mephodiya 6, 79005 Lviv, Ukraine;1. Institute of Low Temperature and Structure Research Polish Academy of Sciences, Department of Spectroscopy of Excited States, ul. Okólna 2, 50-422 Wroc?aw, Poland;2. University of Wroc?aw, Faculty of Chemistry, ul. F. Joliot-Curie 14, 50-383 Wroc?aw, Poland |
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| Abstract: | The ferromagnetic superconductor Y9Co7 was chemically doped to yield the solid solution Y9Co7-xPdx for 0 < x < 0.4. The lattice parameter a does not depend on x, whereas c increases with increasing Pd content up to x = 0.2, the palladium solubility limit. The transition from ferromagnetism (TC = 4.25 K) to superconductivity (Tsc = 2.4 K) was observed only for the parent Y9Co7 compound. For the lowest tested Pd doping level (x = 0.05), ferromagnetism is enhanced strongly (TC = 9.35 K) and superconductivity is not seen above 1.8 K. The Curie temperature rapidly increases from 4.25 K to about 10 K for a Pd concentration of x = 0.1 and remains almost unchanged for Y9Co6.8Pd0.2. |
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| Keywords: | Intermetallics Magnetic properties Superconducting properties |
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