caa a22 4500 445381833 CHVBK 20180317143019.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0976-5 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0976-5 Impurity-Related Local Density-of-States Modulation inBi2Sr2Ca(Cu1− x Zn x )2O8+ δ Probed by Scanning Tunneling Spectroscopy [Elektronische Daten] [Tadashi Machida, Takuya Kato, Hiroshi Nakamura, Masaki Fujimoto, Takashi Mochiku, Shuuichi Ooi, Hideaki Sakata, Kazuto Hirata] We have performed scanning tunneling spectroscopy on a single crystal of Bi2Sr2Ca(Cu1−x Znx)2O8+δ (x=0.005) and found several regions where at least two Zinc (Zn) impurities aggregate within a few nm. In these regions, there are two-dimensional local density-of-states (LDOS) modulations with the period of about 1.41a 0 (a 0 is Cu-O-Cu distance) along the direction tilted 45° from Cu-O-Cu direction within the energy of below 10mV. Since these modulations are suppressed in a map of the ratio between LDOS at a positive energy and at its negative, it is presumable that these modulations do not stem from the simple quasiparticle interference whose pattern should be enhanced in the ratio map. We suggest the possible explanations with respect to the origin of the observed modulations. Springer Science+Business Media, LLC, 2010 Impurity nationallicence Cuprate nationallicence Scanning tunneling microscope nationallicence Machida Tadashi Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut Kato Takuya Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut Nakamura Hiroshi Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut Fujimoto Masaki Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut Mochiku Takashi Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut Ooi Shuuichi Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut Sakata Hideaki Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut Hirata Kazuto Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 481-484 1557-1939 24:1-2<481 2011 24 10948 https://doi.org/10.1007/s10948-010-0976-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0976-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Machida Tadashi Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut NATIONALLICENCE 700 1- Kato Takuya Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Nakamura Hiroshi Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Fujimoto Masaki Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Mochiku Takashi Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut NATIONALLICENCE 700 1- Ooi Shuuichi Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut NATIONALLICENCE 700 1- Sakata Hideaki Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, 162-8601, Shinjuku-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Hirata Kazuto Superconducting Materials Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Ibaraki, Japan aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 481-484 1557-1939 24:1-2<481 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer