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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-6a1ca066-8458-4233-b383-d1c412e1c802

Czasopismo

Materials Science Poland

Tytuł artykułu

Structural, electrical and magnetic features of Kagomé YBaCo4O7 system

Autorzy Bhat, M. A.  Zargar, R. A.  Modi, A.  Arora, M.  Gaur, N. K. 
Treść / Zawartość http://www.materialsscience.pwr.wroc.pl/
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Polycrystalline yttrium barium cobaltite (YBaCo4O7) powdered sample was prepared by conventional solid state reaction route using high purity yttrium oxide, barium carbonate and cobalt oxide. The as-prepared sample was characterized by XRD diffraction, SEM/EDAX, Raman analytical techniques, resistivity and magnetization measurements for structural, morphological, electrical and magnetic properties assessment. XRD pattern confirms the single phase formation of the sample without any impurity. SEM image shows the hexagonal growth of the crystal and EDAX spectrum reveals stoichiometric composition of as prepared sample. The variation in electrical resistivity from 90 K to 300 K follows the variable range hopping conductivity mechanism. The strong broad overlapped Raman peaks of Co–O and Y–O stretching and bending vibrations of tetrahedral CoO4with included components of YO6of octahedral symmetry are obtained at 542 cm-1, 486 cm-1and 636 cm-1, 436 cm-1, respectively. DC magnetic susceptibility exhibits very weak ferromagnetism below 80 K and does not obey Curie-Weiss law.
Słowa kluczowe
EN scanning electron microscopy (SEM)   XRD analysis   DC   magnetic susceptibility  
Wydawca Springer
Czasopismo Materials Science Poland
Rocznik 2016
Tom Vol. 34, No. 4
Strony 786--793
Opis fizyczny Bibliogr. 33 poz., rys., tab.
Twórcy
autor Bhat, M. A.
  • Department of Physics, Barkatullah University, Bhopal 462026, India
autor Zargar, R. A.
  • Department of Physics, Jamia Millia Islamia, New Delhi 110025, India
autor Modi, A.
  • Department of Physics, Barkatullah University, Bhopal 462026, India
autor Arora, M.
  • CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi 110012, India
autor Gaur, N. K.
  • Department of Physics, Barkatullah University, Bhopal 462026, India
Bibliografia
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Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-6a1ca066-8458-4233-b383-d1c412e1c802
Identyfikatory
DOI 10.1515/msp-2016-0122