Anisotropy of critical fields in HgBa2CuO4+delta (CROSBI ID 548296)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Požek, Miroslav ; Grbić, Mihael Srđan ; Dulčić, Antonije ; Barišić, Neven ; Li, Yuan ; Zhao, Xudong ; Dressel, Martin ; Greven, Martin
engleski
Anisotropy of critical fields in HgBa2CuO4+delta
Microwave absorption measurements have proven to be a useful tool for the determination of upper critical fields in high-Tc superconductors, even beyond the experimentally reachable dc magnetic fields. The analysis is usually based on the model for effective microwave conductivity in the mixed state of type-II superconductors, which takes into account vortex pinning mechanisms. Here we show microwave measurements of ab- and c-axis conductivity, which is particularly sensitive if the proper sample geometry is chosen. As an example, we have taken a high quality single crystal of HgBa2CuO4+delta, which can be considered as the model single-layered high-Tc superconductor known for its unique property to confine extrinsic disorder away from the superconducting layer. The upper critical fields are determined in two orientations (Bdc || c-axis and Bdc || ab-plane), and the anisotropy is extracted.
429. WE-Heraeus-Seminar Microwaves for Condensed Matter Physics 2009
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
2009.
objavljeno
Podaci o matičnoj publikaciji
429. WE-Heraeus-Seminar Microwaves for Condensed Matter Physics 2009
Scheffler, Marc ; Dressel, Martin
Bad Honnef: Wilhelm und Else Heraeus-Stiftung
Podaci o skupu
429. WE-Heraeus-Seminar Microwaves for Condensed Matter Physics 2009
poster
05.07.2009-08.07.2009
Bad Honnef, Njemačka