Superconductivity in a new NdBa2Ca3Sr4Cu5Ox system |
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| Authors: | S. Arumugam S. Natarajan V. S. Sastry T. Geethakumary T. S. Radhakrishnan V. Sankaranarayanan |
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| Affiliation: | 1. Dept. of Physics , Anna University , Madras, 600025, India;2. Materials Science Division , Indira Gandhi Centre for Atomic Research , Kalpakkam, 603 102, India;3. Dept. of Physics , Indian Institute of Technology , Madras, India |
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| Abstract: | A new compound, NdBa2Ca3Sr4Cu5Ox, has been synthesised using the conventional solid state reaction technique. The material was characterised by powder XRD, electrical resistivity, ac susceptibility and dc magnetisation studies. The results of powder X-ray diffraction show that the structure is pseudo orthorhombic, having unit cell dimensions a = 5.47 Å, b = 5.46 Å and c = 14.58 Å. Magnetisation studies on a SQUID magnetometer showed a superconducting transition at 52 K. This was confirmed by the measurements of electrical resistance and ac susceptibility of this sample, which also showed superconductivity at 52 K. Details of preparation and characterisation are discussed. |
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| Keywords: | HTSC materials new superconductors superconductivity SQUID magnetometer |
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