Synchrotron x-ray absorption spectroscopy (Xas) studies on structural and magnetic properties of t’-pr2-xcexcuo4 nanocrystals

Resky Irfanita, P. E.D. Putra, B. Triono, M. A. Baqiya*, Darminto, Krongthong Kamonsuangkasem, Chatree Saiyasombat

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

We have succeeded in synthesizing electron-doped cuprate T’-Pr2-xCexCuO4 (PCCO) with x = 0 and 0.10 nanocrystals prepared by the chemically dissolved method. Reduction annealing of the PCCO samples at 700oC under a flowing argon gas atmosphere has been performed for removing excess oxygen at the apical sites. The x-ray diffraction (XRD) data show that the reduction annealing process decreases c-axis length indicating successful removal of the excess oxygen. The bond distortion of PCCO including coordination number and bond distance between the absorber atoms with the nearest neighboring atoms (Cu-O) was investigated by extended x-ray absorption fine structure (EXAFS) using Cu K-edge. The implication of the results is discussed based on the tremendous influence of oxygen vacancies on the magnetism of the nanosized T’-cuprate at the normal state.

Original languageEnglish
Title of host publicationMagnetism and its Application
EditorsBudi Purnama, Darminto, Risdiana
PublisherTrans Tech Publications Ltd
Pages128-133
Number of pages6
ISBN (Print)9783035717044
DOIs
Publication statusPublished - 2020
EventInternational Conference on Magnetism and Its Application, ICMIA 2019 - Surakarta, Indonesia
Duration: 20 Nov 201921 Nov 2019

Publication series

NameKey Engineering Materials
Volume855 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

ConferenceInternational Conference on Magnetism and Its Application, ICMIA 2019
Country/TerritoryIndonesia
CitySurakarta
Period20/11/1921/11/19

Keywords

  • EXAFS
  • Electron-doped
  • Nanocrystals
  • Oxygen vacancy
  • T’-PCCO

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