Synthesis and transport properties of Ca3Cu2O4Cl2

J. G. Lee; K. V. Ramanujachary; M. Greenblatt

doi:10.1016/0025-5408(91)90085-Z

Synthesis and transport properties of Ca₃Cu₂O₄Cl₂

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English (US)
Pages (from-to)	1027-1034
Number of pages	8
Journal	Materials Research Bulletin
Volume	26
Issue number	10
DOIs	https://doi.org/10.1016/0025-5408(91)90085-Z
State	Published - Oct 1991
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/0025-5408(91)90085-Z

Cite this

@article{422ea7a3f1ba4674a5f7f2966f64c608,

title = "Synthesis and transport properties of Ca3Cu2O4Cl2",

abstract = "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.",

author = "Lee, \{J. G.\} and Ramanujachary, \{K. V.\} and M. Greenblatt",

note = "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.",

year = "1991",

month = oct,

doi = "10.1016/0025-5408(91)90085-Z",

language = "English (US)",

volume = "26",

pages = "1027--1034",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Ltd",

number = "10",

}

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.

UR - https://www.scopus.com/pages/publications/0026238454

UR - https://www.scopus.com/pages/publications/0026238454#tab=citedBy

U2 - 10.1016/0025-5408(91)90085-Z

DO - 10.1016/0025-5408(91)90085-Z

M3 - Article

SN - 0025-5408

VL - 26

SP - 1027

EP - 1034

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 10

ER -

Synthesis and transport properties of Ca₃Cu₂O₄Cl₂

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this