Pregled bibliografske jedinice broj: 382024
Hall effect in Sr14-xCaxCu24O41
Hall effect in Sr14-xCaxCu24O41 // Physica B - Condensed Matter, 404 (2009), 3-4; 385-388 doi:10.1016/j.physb.2008.11.020 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 382024 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Hall effect in Sr14-xCaxCu24O41
Autori
Tafra, Emil ; Korin-Hamzić, Bojana ; Basletić, Mario ; Hamzić, Amir ; Dressel, Martin ; Akimitsu, J.
Izvornik
Physica B - Condensed Matter (0921-4526) 404
(2009), 3-4;
385-388
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Hole-doped quasi-one-dimensional cuprates; Spin-ladders
Sažetak
We present Hall effect measurements of two-leg ladder Sr14-xCaxCu24O41 (0 <= x <= 11.5). In these composite materials charge and spin ordering occur within chain and ladder subsystems. They have been investigated intensively during the last years because of their fascinating physical properties, especially after the discovery of superconductivity under pressure (for x>10). They are the first superconducting copper oxides (superconductivity occurs under pressure for x>10) without the CuO2 planes, characteristic for high-temperature superconductors. The question of charge dynamics and hole distribution between the ladders and chains is still open. Our Hall effect results show typical semiconducting behavior for x<10. The x=11.5 compound shows metallic behavior and our Hall effect results match qualitatively the behavior found in high-Tc cuprates. We have determined the effective number of carriers and its dependence on composition (x) and compared it to the number of holes in the ladders obtained by other experimental techniques at room temperature.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
035-0000000-2836 - Jako korelirani anorganski, organski i biomaterijali (Tomić, Silvia, MZOS ) ( CroRIS)
119-1191458-1023 - Sustavi s prostornim i dimenzijskim ograničenjima: korelacije i spinski efekti (Hamzić, Amir, MZOS ) ( CroRIS)
Ustanove:
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus