caa a22 4500 467884439 CHVBK 20180406152730.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1007/s10948-006-0212-5 doi (NATIONALLICENCE)springer-10.1007/s10948-006-0212-5 Microwave Surface Impedance and Complex Conductivity of High- T c Single Crystals: Current State and Unsolved Problems [Elektronische Daten] [Yu. Nefyodov, A. Shevchun, A. Shuvaev, M. Trunin] Common and distinctive features of the temperature dependences of microwave surface impedance Z(T)=R(T)+iX(T) and conductivity σ(T) in the ab-plane and along the c-axis of high-T c single crystals (HTSC) are discussed. The main attention is focused on an evolution of these dependences in YBaCuO crystal with the oxygen deficiency. Comparison of YBaCuO with other HTSC crystals reveals a number of peculiarities, namely, the linear dependence Rab(T) ∞ T up to T c/2 in HTSC single crystals with tetragonal lattice and up to T c/3 in YBaCuO where R ab (T) shows also a broad peak at T∼ Tc/2; breakdown of normal skin effect in some HTSC crystals; dramatic effect of pseudogap on the superfluid density in the heavily underdoped YBCO; several orders of magnitude higher residual surface resistance in HTSC when compared to conventional superconductors; etc. Possible explanations are discussed in the context of the specific features of HTSC structure and in the framework of recent models of quasiparticles' c-transport and pseudogap state in HTSC. Springer Science + Business Media, LLC, 2007 Nefyodov Yu Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut Shevchun A. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut Shuvaev A. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut Trunin M. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/7-8(2006-11-01), 579-590 1557-1939 19:7-8<579 2006 19 10948 https://doi.org/10.1007/s10948-006-0212-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-006-0212-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nefyodov Yu Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut NATIONALLICENCE 700 1- Shevchun A. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut NATIONALLICENCE 700 1- Shuvaev A. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut NATIONALLICENCE 700 1- Trunin M. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/7-8(2006-11-01), 579-590 1557-1939 19:7-8<579 2006 19 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer