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Pregled bibliografske jedinice broj: 295350

Magnetotransport of lanthanum doped RuSr_2GdCu_2O_8 - the role of gadolinium


Požek, Miroslav; Dulčić, Antonije; Hamzić, Amir; Basletić, Mario; Tafra, Emil; Williams, Grant V. M.; Krämer, Steffen
Magnetotransport of lanthanum doped RuSr_2GdCu_2O_8 - the role of gadolinium // European Physical Journal B, 57 (2007), 1; 1-7 (međunarodna recenzija, članak, znanstveni)


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Naslov
Magnetotransport of lanthanum doped RuSr_2GdCu_2O_8 - the role of gadolinium

Autori
Požek, Miroslav ; Dulčić, Antonije ; Hamzić, Amir ; Basletić, Mario ; Tafra, Emil ; Williams, Grant V. M. ; Krämer, Steffen

Izvornik
European Physical Journal B (1434-6028) 57 (2007), 1; 1-7

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
cuprate superconductors (high-Tc and insulating parent compounds); transport properties (electric and thermal conductivity; thermoelectric effects; etc.); magnetic properties

Sažetak
Strongly underdoped RuSr1.9La0.1GdCu2O8 has been comprehensively studied by dc magnetization, microwave measurements, magnetoresistivity and Hall resistivity in fields up to 9 T and temperatures down to 1.75 K. Electron doping by La reduces the hole concentration in the CuO2 planes and completely suppresses superconductivity. Microwave absorption, dc resistivity and ordinary Hall effect data indicate that the carrier concentration is reduced and a semiconductor-like temperature dependence is observed. Two magnetic ordering transitions are observed. The ruthenium sublattice orders antiferromagnetically at 155 K in low applied magnetic fields, and the gadolinium sublattice orders antiferromagnetically at 2.8 K. The magnetoresistivity in this compound exhibits a complicated temperature dependence due to the occurence of the two magnetic orders and spin fluctuations. It is shown that the ruthenium magnetism influences the conductivity in the RuO2 layers while the gadolinium magnetism influences the conductivity in the CuO2 layers. The magnetoresistivity is isotropic above 4 K, but it becomes anisotropic close to the gadolinium antiferromagnetic order temperature.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
119-1191458-1022 - Mikrovalna istraživanja novih materijala (Požek, Miroslav, MZOS ) ( POIROT)
119-1191458-1023 - Sustavi s prostornim i dimenzijskim ograničenjima: korelacije i spinski efekti (Hamzić, Amir, MZOS ) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Antonije Dulčić (autor)

Avatar Url Mario Basletić (autor)

Avatar Url Miroslav Požek (autor)

Avatar Url Emil Tafra (autor)

Avatar Url Amir Hamzić (autor)

Citiraj ovu publikaciju

Požek, Miroslav; Dulčić, Antonije; Hamzić, Amir; Basletić, Mario; Tafra, Emil; Williams, Grant V. M.; Krämer, Steffen
Magnetotransport of lanthanum doped RuSr_2GdCu_2O_8 - the role of gadolinium // European Physical Journal B, 57 (2007), 1; 1-7 (međunarodna recenzija, članak, znanstveni)
Požek, M., Dulčić, A., Hamzić, A., Basletić, M., Tafra, E., Williams, G. & Krämer, S. (2007) Magnetotransport of lanthanum doped RuSr_2GdCu_2O_8 - the role of gadolinium. European Physical Journal B, 57 (1), 1-7.
@article{article, year = {2007}, pages = {1-7}, keywords = {cuprate superconductors (high-Tc and insulating parent compounds), transport properties (electric and thermal conductivity, thermoelectric effects, etc.), magnetic properties}, journal = {European Physical Journal B}, volume = {57}, number = {1}, issn = {1434-6028}, title = {Magnetotransport of lanthanum doped RuSr\_2GdCu\_2O\_8 - the role of gadolinium}, keyword = {cuprate superconductors (high-Tc and insulating parent compounds), transport properties (electric and thermal conductivity, thermoelectric effects, etc.), magnetic properties} }
@article{article, year = {2007}, pages = {1-7}, keywords = {cuprate superconductors (high-Tc and insulating parent compounds), transport properties (electric and thermal conductivity, thermoelectric effects, etc.), magnetic properties}, journal = {European Physical Journal B}, volume = {57}, number = {1}, issn = {1434-6028}, title = {Magnetotransport of lanthanum doped RuSr\_2GdCu\_2O\_8 - the role of gadolinium}, keyword = {cuprate superconductors (high-Tc and insulating parent compounds), transport properties (electric and thermal conductivity, thermoelectric effects, etc.), magnetic properties} }

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





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