IDEA #1JAWIC Scientific foundations for purposeful changing the physical properties of the doped cuprate high temperature superconductors

MATERIALS Scientific foundations for purposeful changing the physical properties of the doped cuprate high temperature superconductors cT theoretical . Therefore, searching and obtaining Description The doped copper oxide (cuprate) high temperature superconductors (HTSC) have attracted great interest not only for their scientific significance, but also for the obvious practical applications related to their high critical superconducting (SC) transition temperature and experimental investigations of the metal-insulator transition (MITs), phase separation and stripe formation (i.e. formation of the metallic and insulating stripes), suppression or enhancement of cT depending on the doping level in the cuprates will enable or systematic improvement of the material quality and technological advances on the basis of the phase diagram of doped cuprates (Fig.1). The results of these researches will be used in the new more technological HTSC materials. Further, physically well-founded recommendation will be worked out for possible application potential of the obtained cuprate HTSC materials in microelectronics and optoelectronics. Innovative Aspects and Main Advantages On the basis of our fundamental research the recommendations for possible applications of the obtained materials YBa will be given. Some possible applications of doped insulating and metallic or SC cuprates are emerged from improvements in existing devices and technology such as computers, logic devices, sensors (including radiation detectors). In particular, HTSC materials can be used in the microelectronics transistors that are faster, more effective and uses less energy than any conventional transistors. Areas of application and us HTSC Synthesized OCU YBa cuprates will find applications in new hybrid insulator - superconductor devices. These HTSC materials can be used in electric power transformers and stations as well as in particle accelerators. Another area showing rapid progress is HTSC filters for use in mobile phones with wireless communications. semiconductor) studied OCU 3 2 δ−7 2 3 δ−7 (or results and HTSC by Fig. 1 The electronic phase diagram of the doped cuprates: TN - the Neel temperature; T0 - the upper crossover temperature; T* - the pseudogap temperature; xMIT - the critical doping level corresponding to the metal- insulator transition; xQSP - the so-called quantum critical point. A systematic improvement of the quality of doped cuprates YBa2Cu3O7-δ and technological advances are based on this phase diagram. Stage of development The development of the syntering technology of high- quality HTSC cuprates for their practical applications is at the conceptual stage. Contact details Institute of Nuclear Physics, Uzbek Academy of Science Contact person: Dr. Safarali Djumanov Address: pos. Ulugbek, 100214, Tashkent, Uzbekistan Tel./fax: (+998 71) 289 25 57 e-mail: dzhumanov@rambler.ru website: www.intranet.inp.uz