From Charge Transfer Type Insulator to Superconductor
نویسندگان
چکیده
منابع مشابه
Charge transfer between a superconductor and a hopping insulator.
We develop a theory of the low-temperature charge transfer between a superconductor and a hopping insulator. We show that the charge transfer is governed by the coherent two-electron-Cooper pair conversion process time-reversal reflection, where electrons tunnel into a superconductor from the localized states in the hopping insulator located near the interface, and calculate the corresponding i...
متن کاملElectronic structure of CuO2 planes: From insulator to superconductor
Using angle-resolved photoemission and linearly polarized synchrotron radiation, we measured the electronic band structure of electronic states of CuO2 plane materials ranging from insulators ~Sr2CuO2Cl2) to overdoped superconductors ~Bi2Sr2CaCu2O81x). We report three results: ~i! The CuO2 containing insulator possesses a spin-density-wave ~SDW! ground state; ~ii! there are precursors of the SD...
متن کاملSilicon films with gallium-rich nanoinclusions: from superconductor to insulator
Si films sputter deposited on thermally oxidized Si are enriched with Ga by ion implantation through a SiO2 capping layer. The morphology and the electrical transport properties of these films are investigated after rapid thermal annealing. Amorphous, Ga-rich nanoinclusions are embedded in a nanocrystalline Si matrix. The metallic nanoinclusions become superconducting below 7K. They form a rand...
متن کاملThe Superconductor Insulator Transition
As the thickness or magnetic field is varied in thin films a transition between superconducting and insulating phases takes place. This quantum phase transition obeys scaling relations and occurs at seemingly universal critical resistance. This paper reviews experiments that demonstrate this transition and measure the critical exponents. The microscopic theories are outlined and lead to differe...
متن کاملQuantum Obstacle changes Superconductor to Insulator
Superconductivity is a rare physical state in which matter is able to conduct electricity—maintain a flow of electrons—without any resistance. It can only be found in certain materials, and even then it can only be achieved under controlled conditions of low temperatures and high pressures. New research from a team including Carnegie's Elissaios Stavrou, Xiao-Jia Chen, and Alexander Goncharov h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics B
سال: 2003
ISSN: 0217-9792,1793-6578
DOI: 10.1142/s021797920302096x