Detail An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates   Oleh:  Kohsaka, Y ; Taylor, C. ; Fujita, K. ; Schmidt, A. ; Lupien, C. ; Hanaguri, T. ; Azuma, M ; Takano, M ; Eisaki, H ; Takagi, Haruo ; Tsuchida, Shigeru ; Davis, J C Jenis: Article from Bulletin/Magazine Dalam koleksi: SCIENCE (keterangan: ada di Proquest) vol. 315 no. 5817 (Mar. 2007), page 1380. Ketersediaan Perpustakaan FK Nomor Panggil: S01.K.2007.03 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Removing electrons from the CuOz plane of cuprates alters the electronic correlations sufficiently to produce high-temperature superconductivity. Associated with these changes are spectral-weight transfers from the high-energy states of the insulator to low energies. In theory, these should be detectable as an imbalance between the tunneling rate for electron injection and extraction-a tunneling asymmetry. We introduce atomic-resolution tunneling-asymmetry imaging, finding virtually identical phenomena in two lightly hole-doped cuprates: Cal.88Nao.12CuOzClz and BizSrzDYo.zCao.8Cuz08+o' Intense spatial variations in tunneling asymmetry occur primarily at the planar oxygen sites; their spatial arrangement forms a Cu-O-Cu bond-centered electronic pattern without long-range order but with 400-wide unidirectional electronic domains dispersed throughout (00: the Cu-O-Cu distance). The emerging picture is then of a partial hole localization within an intrinsic electronic glass evolving, at higher hole densities, into complete delocalization and highest-temperature superconductivity Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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