Angle-Resolved Photoemission Spectroscopy of (Ca,Na)_2CuO_2Cl_2 Crystals: Fingerprints of a Magnetic Insulator in a Heavily Underdoped Superconductor (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Electronic evolution from an antiferromagnet to a high-T_c superconductor is revealed by angle-resolved photoemission experiments on tetragonal Ca_<1.9>Na_<0.1>CuO_2Cl_2 single crystals, which were successfully grown for the first time under high pressures. In this underdoped superconductor, we found clear fingerprints of the parent insulator: a shadow band and a large pseudogap. These observations are most likely described by a "chemical potential shift", which contrasts clearly with the prevailing wisdom of the "pinned chemical potential" learned from the prototype La_<2-x>Sr_xCuO_4, demonstrating that the route to a high-T_c superconductor is not unique.

• 社団法人日本物理学会の論文
• 2003-05-15

著者

• TAKANO Mikio

  Institute for Chemical Research, Kyoto University

• AZUMA Masaki

  Institute for Chemical Research, Kyoto University

• YOSHIDA Teppei

  Department of Physics, University of Tokyo

• Ronning Filip

  Department Of Physics Applied Physics And Stanford Synchrotron Radiation Laboratory Stanford Univers

• Takano M

  Institute For Chemical Research Kyoto University

• Takano M

  Kyoto Univ. Kyoto

• Takano Mikio

  Institute For Chemical Research (icr) Kyoto University

• Yoshida Tomoko

  Department Of Nuclear Engineering Nagoya University

• Yoshida Takemi

  Dept.biochem.toxicol. Showa Univ.

• Yoshida Takemi

  Department Of Biochemical Toxicology School Of Pharmaceutical Sciences Showa University

• Yoshida Teppei

  Department Of Physics Applied Physics And Stanford Synchrotron Radiation Laboratory Stanford Univers

• KIM Changyoung

  Department of Applied Physics and Stanford Synchrotron Radiation Laboratory,Stanford University

• Azuma M

  Institute For Chemical Research Kyoto University

• Azuma Masaki

  Institute For Chemical Research Kyoto University

• TAKAGI Hidenori

  Department of Applied Physics,The University of Tokyo

• Takagi Hidenori

  Department Of Advanced Materials Science University Of Tokyo

• Shen Zhi

  Department Of Physics Applied Physics And Stanford Synchrotron Radiation Laboratory Stanford Univers

• Kim Changyoung

  Department Of Physics Applied Physics And Stanford Synchrotron Radiation Laboratory Stanford Univers

• Kim Changyoung

  Department Of Applied Physics And Stanford Synchrotron Radiation Laboratory Stanford University

• SASAGAWA Takao

  Department of Advanced Materials Science, University of Tokyo

• KOHSAKA Yuhki

  Department of Advanced Materials Science, University of Tokyo

• HANAGURI Tetsuo

  Department of Advanced Materials Science, University of Tokyo

• Yoshida Teiji

  Department Of Physics Faculty Of Science Tohoku University

• Mitsui Takaya

  Crest Japan Science And Technology Agency:japan Atomic Energy Agency

• Sasagawa Takao

  Department Of Advanced Materials Science University Of Tokyo:sorst Japan Science And Technology Corp

• Takao Sasagawa

  Department Of Advanced Materials Science University Of Tokyo:crest Japan Science And Technology Corp

• Shen Zhi

  Department Of Electronics Engineering Ajou University

• Kohsaka Yuhki

  Department Of Advanced Materials Science University Of Tokyo

• Yoshida Takemi

  School Of Pharmaceutical Sciences Showa University

• Hanaguri T

  Department Of Advanced Materials Science University Of Tokyo:sorst Japan Science And Technology Corp

• Hanaguri Tetsuo

  Department Of Basic Science The University Of Tokyo

• Arai Masaya

  Department Of Physics Sophia University

• Yoshida Teppei

  Department of Complexity Science and Engineering and Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033

• Hanaguri Tetsuo

  Department of Advanced Materials Science, University of Tokyo:SORST, Japan Science and Technology Corporation

• Takagi Hidenori

  Department of Advanced Materials and Department of Applied Chemistry, University of Tokyo, Kashiwa, Chiba 277-8561, Japan

• TAKAGI Hidenori

  Department of Advanced Materials Science, University of Tokyo

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