scholarly journals Novel Electronic State and Superconductivity in the Electron-Doped High-Tc T’-Superconductors

2017 ◽  
Vol 2 (3) ◽  
pp. 23 ◽  
Author(s):  
Tadashi Adachi ◽  
Takayuki Kawamata ◽  
Yoji Koike
Keyword(s):  
Electronic State ◽  
High Tc

LOCAL POLARIZATION, ELECTRON STRIPE, AND HIGH-Tc SUPERCONDUCTIVITY IN LAYERED CUPRATES

2000 ◽  
Vol 14 (29n31) ◽  
pp. 3536-3541 ◽  
Author(s):  
S. Kuwata
Keyword(s):  
Electronic State ◽  
Elementary Excitation ◽  
Translation Invariance ◽  
Coupling Constant ◽  
High Tc ◽  
Stripe Phase ◽  
High Tc Superconductivity ◽  
Local Polarization ◽  
Charge Oscillation ◽  
Layered Cuprates

We examine the possibility of high-Tc superconductivity mediated by the elementary excitation of an electron stripe which is realized by neutralizing local polarization mainly caused by the c-displacement of ions on the CuO 2 plane. Under the translation invariance of the electronic state of the neutralization charges, it is found that both itinerant and localized electrons and/or holes can coexist in the stripe phase. If the frequency of the localized charge oscillation tends to soften along the stripe direction, superconductivity with Tc around 100 K can be realized, due to the enhancement of the coupling constant.

scholarly journals Electronic State and Mechanism of High Tc Superconductivity.

Materia Japan ◽  
1995 ◽  
Vol 34 (12) ◽  
pp. 1354-1357
Author(s):  
Sadamichi Maekawa
Keyword(s):  
Electronic State ◽  
High Tc ◽  
High Tc Superconductivity

scholarly journals Reassessment of the electronic state, magnetism, and superconductivity in high-Tc cuprates with the Nd2CuO4 structure

2016 ◽  
Vol 523 ◽  
pp. 28-54 ◽  
Author(s):  
Michio Naito ◽  
Yoshiharu Krockenberger ◽  
Ai Ikeda ◽  
Hideki Yamamoto
Keyword(s):  
Electronic State ◽  
High Tc ◽  
High Tc Cuprates

Tunneling studies of electronic state in high-Tc Bi(2212)-system

2003 ◽  
Vol 388-389 ◽  
pp. 293-294
Author(s):  
Atsushi Suzuki ◽  
Kenta Kainuma ◽  
Morio Suzuki
Keyword(s):  
Electronic State ◽  
High Tc

High-Tc cuprates: a new electronic state of matter?

2000 ◽  
Vol 331 (2) ◽  
pp. 97-112 ◽  
Author(s):  
A.S. Alexandrov ◽  
P.P. Edwards
Keyword(s):  
Electronic State ◽  
High Tc ◽  
State Of Matter ◽  
High Tc Cuprates

High resolution STEM imaging study on high Tc superconductor YBa2CuaO7-x

1988 ◽  
Vol 46 ◽  
pp. 882-883
Author(s):  
H.-J. Ou ◽  
J. M. Cowley
Keyword(s):  
Crystal Structure ◽  
High Resolution ◽  
Grain Boundary ◽  
Strong Field ◽  
Imaging Study ◽  
Structure Defects ◽  
High Tc ◽  
High Tc Superconductor ◽  
Diffraction Patterns ◽  
Lattice Planes

Using the dedicate VG-HB5 STEM microscope, the crystal structure of high Tc superconductor of YBa2Cu3O7-x has been studied via high resolution STEM (HRSTEM) imaging and nanobeam (∽3A) diffraction patterns. Figure 1(a) and 2(a) illustrate the HRSTEM image taken at 10' times magnification along [001] direction and [100] direction, respectively. In figure 1(a), a grain boundary with strong field contrast is seen between two crystal regions A and B. The grain boundary appears to be parallel to a (110) plane, although it is not possible to determine [100] and [001] axes as it is in other regions which contain twin planes [3]. Following the horizontal lattice lines, from left to right across the grain boundary, a lattice bending of ∽4° is noticed. Three extra lattice planes, indicated by arrows, were found to terminate at the grain boundary and form dislocations. It is believed that due to different chemical composition, such structure defects occur during crystal growth. No bending is observed along the vertical lattice lines.

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