TY - JOUR
T1 - Synthesis and transport properties of Ca3Cu2O4Cl2
AU - Lee, J. G.
AU - Ramanujachary, K. V.
AU - Greenblatt, M.
N1 - Funding Information:
We thankD r. R. L. Fuller for helpfuld iscussionsT.h is work was supporteidn partb y the Office of Naval Researcha ndby NationalS cienceF oundation-SoliSdt ateC hemistryP rogram GrantD MR-87-14072an dD MR-90-19301.
PY - 1991/10
Y1 - 1991/10
N2 - Synthesis, electrical, and magnetic properties of semiconducting Ca3Cu2O4Cl2 with a perovskite-related structure are reported. Synthetic conditions required for the formation of single phase polycrystalline Ca3Cu2O4Cl2 were determined. Powder X-ray diffraction analysis confirmed the body-centered-tetragonal ( I4 mmm) structure as proposed earlier. Differential thermal studies in air indicate incongruent melting at 960°C. Temperature dependent electrical resistivity measurements carried out in O2 and He atmospheres respectively in the range 20 - 600°C show semiconducting behavior regardless of the atmosphere, although the conductivity is higher by at least two orders of magnitude in oxygen atmosphere. No evidence for magnetic order is seen in the susceptibility measurements down to 2 K.
AB - Synthesis, electrical, and magnetic properties of semiconducting Ca3Cu2O4Cl2 with a perovskite-related structure are reported. Synthetic conditions required for the formation of single phase polycrystalline Ca3Cu2O4Cl2 were determined. Powder X-ray diffraction analysis confirmed the body-centered-tetragonal ( I4 mmm) structure as proposed earlier. Differential thermal studies in air indicate incongruent melting at 960°C. Temperature dependent electrical resistivity measurements carried out in O2 and He atmospheres respectively in the range 20 - 600°C show semiconducting behavior regardless of the atmosphere, although the conductivity is higher by at least two orders of magnitude in oxygen atmosphere. No evidence for magnetic order is seen in the susceptibility measurements down to 2 K.
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U2 - 10.1016/0025-5408(91)90085-Z
DO - 10.1016/0025-5408(91)90085-Z
M3 - Article
AN - SCOPUS:0026238454
SN - 0025-5408
VL - 26
SP - 1027
EP - 1034
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 10
ER -