caa a22 4500 44537991X CHVBK 20180317143014.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10948-011-1139-z doi (NATIONALLICENCE)springer-10.1007/s10948-011-1139-z Inter- and Intra-granular Interactions of REBa2Cu3O7− δ , RE: Eu, Gd, Ho and Er [Elektronische Daten] [N. Liyanawaduge, Anuj Kumar, B. Karunarathne, Amita Malik, H. Kishan, V. Awana] Here, the superconducting and AC/DC magnetic properties of REBa2Cu3O7−δ (RE: Eu, Gd, Ho and Er) are investigated in order to understand the inter-granular and intra-granular behavior of these compounds. These compounds were prepared by standard solid-state reaction route. ErBa2Cu3O7−δ (Er-123) and HoBa2Cu3O7−δ (Ho-123) (consisting of heavier rare earth) show higher orthorhombic splitting in their XRD patterns than those observed for EuBa2Cu3O7−δ (Eu-123) and GdBa2Cu3O7−δ (Gd-123) (consisting of lighter rare earth). Even though Eu, Gd, Ho and Er are magnetic elements, substitution of these at Y site in Y-123 does not change the superconducting transition temperature (T c). Er-123 and Ho-123 exhibit very sharp superconducting transition while Eu-123 and Gd-123 exhibit relatively broad transition with little hump at the lower part of transition close to the long-range superconducting state with zero resistance. In addition to that, Eu-123 and Gd-123 show relatively higher normal state resistivity than those of Er-123 and Ho-123. The AC susceptibility measurements reveal that these compounds possess different strength of inter-granular couplings. The hump in the superconducting transition of Eu and Gd is not due to the lack of inter-grain couplings in these samples because of having better grain connectivity in the samples as compared to other rare earth elements in REBa2Cu3O7−δ system. Though intra-grain peak is insensitive to the applied magnetic field, inter-grain peak is sensitive to the applied magnetic field. Springer Science+Business Media, LLC, 2011 AC susceptibility nationallicence Inter-grain nationallicence Intra-grain nationallicence Liyanawaduge N. Industrial Technology Institute, Baudhaloka Mawatha, P.O. Box 363, Colombo 07, Sri Lanka aut Kumar Anuj National Physical Laboratory, Dr. K.S. Krishnan Marg, 110012, New Delhi, India aut Karunarathne B. University of Peradeniya, 20400, Peradeniya, Sri Lanka aut Malik Amita Dyal Singh College, Lodhi Road, 110003, New Delhi, India aut Kishan H. National Physical Laboratory, Dr. K.S. Krishnan Marg, 110012, New Delhi, India aut Awana V. National Physical Laboratory, Dr. K.S. Krishnan Marg, 110012, New Delhi, India aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/6(2011-08-01), 1893-1899 1557-1939 24:6<1893 2011 24 10948 https://doi.org/10.1007/s10948-011-1139-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1139-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liyanawaduge N. Industrial Technology Institute, Baudhaloka Mawatha, P.O. Box 363, Colombo 07, Sri Lanka aut NATIONALLICENCE 700 1- Kumar Anuj National Physical Laboratory, Dr. K.S. Krishnan Marg, 110012, New Delhi, India aut NATIONALLICENCE 700 1- Karunarathne B. University of Peradeniya, 20400, Peradeniya, Sri Lanka aut NATIONALLICENCE 700 1- Malik Amita Dyal Singh College, Lodhi Road, 110003, New Delhi, India aut NATIONALLICENCE 700 1- Kishan H. National Physical Laboratory, Dr. K.S. Krishnan Marg, 110012, New Delhi, India aut NATIONALLICENCE 700 1- Awana V. National Physical Laboratory, Dr. K.S. Krishnan Marg, 110012, New Delhi, India aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/6(2011-08-01), 1893-1899 1557-1939 24:6<1893 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer