caa a22 4500 445380063 CHVBK 20180317143014.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10948-011-1206-5 doi (NATIONALLICENCE)springer-10.1007/s10948-011-1206-5 Magnetization Studies of K0.8Fe1.7Se2 Single Crystals [Elektronische Daten] [I. Felner, S. Jin, G. Wang, S. Wang, K. Zhu, T. Zhou] Magnetization measurements of the magneto-superconducting K0.8Fe1.7Se2 single crystals (T C =29.6K) at various applied fields and temperatures have been performed. In the superconducting range, two unusual phenomena are observed. (i) The presence of paramagnetic Meissner effect up to 20 Oe, which is revealed by the positive field-cooled magnetization curves. (ii) A double peak in the hysteresis loop at low temperatures. The isothermal magnetization measured at 35 K clearly indicates the presence of a tiny amount of a ferromagnetic substance (probably pure Fe). The two peculiar phenomena observed are attributed to this impurity. Springer Science+Business Media, LLC, 2011 Superconductivity nationallicence Fe-Se based materials nationallicence Paramagnetic Meissner effect nationallicence Felner I. Racah Institute of Physics, The Hebrew University, 91904, Jerusalem, Israel aut Jin S. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut Wang G. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut Wang S. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut Zhu K. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut Zhou T. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/7(2011-10-01), 2033-2036 1557-1939 24:7<2033 2011 24 10948 https://doi.org/10.1007/s10948-011-1206-5 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1206-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Felner I. Racah Institute of Physics, The Hebrew University, 91904, Jerusalem, Israel aut NATIONALLICENCE 700 1- Jin S. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut NATIONALLICENCE 700 1- Wang G. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut NATIONALLICENCE 700 1- Wang S. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut NATIONALLICENCE 700 1- Zhu K. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut NATIONALLICENCE 700 1- Zhou T. Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100190, Beijing, China aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/7(2011-10-01), 2033-2036 1557-1939 24:7<2033 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer