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Anisotropy of critical fields in HgBa2CuO4+delta (CROSBI ID 548296)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Požek, Miroslav ; Grbić, Mihael Srđan ; Dulčić, Antonije ; Barišić, Neven ; Li, Yuan ; Zhao, Xudong ; Dressel, Martin ; Greven, Martin Anisotropy of critical fields in HgBa2CuO4+delta // 429. WE-Heraeus-Seminar Microwaves for Condensed Matter Physics 2009 / Scheffler, Marc ; Dressel, Martin (ur.). Bad Honnef: Wilhelm und Else Heraeus-Stiftung, 2009

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

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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

Povezanost rada

Fizika