Τίτλος:
Synthesis of Ru1-xSbxSr2(Eu0.7Ce0.3)(2)Cu2O10-delta and their magnetic
and transport properties
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Ru1-xSbxSr2(Eu0.7Ce0.3)(2)Cu2O10-delta systems were prepared
byconventional solid state reaction method. The structural analysis was
investigated using X-ray diffraction. Electrical resistivity, Hall
effect and magnetic susceptibility measurements on Ru: 1222 doped with
Sb are presented, together with results in the temperature range 5-300
K. Transition temperature decreases from 43 K for x = 0.00 to 20 K for x
= 0.06 Sb. This may be due to a distortion of RuO6 octahedral, which is
responsible of the increase in hole localization. The Hall effect
anomalous decreases below T-magnetic which may be explained within a
simple two-band model by a transition from localized to more itinerant
behavior in the RuO2 layer at T-magnetic. The behavior of magnetic
susceptibility is caused by an antisymmetric exchange coupling of the
Dzyaloshinsky-Morya type between neighboring Ru moments.
Συγγραφείς:
Yang, TR
Ilonca, G
Beiusan, F
Pop, AV
Toma, V
Matei,
I
Patapis, S
Περιοδικό:
INTERNATIONAL JOURNAL OF MODERN PHYSICS . B . CONDENSED MATTER PHYSICS, STATISTICAL PHYSICS APPLIED PHYSICS
Εκδότης:
WORLD SCIENTIFIC PUBL CO PTE LTD
Λέξεις-κλειδιά:
X-ray; resistivity; susceptibility
DOI:
10.1142/S0217979205032127
