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Title: Synthesis, structure and property investigation of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}

Abstract

The solid solution series of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} (M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}, 0 < x < 0.2) have been prepared through alkaline solution method. The phases were characterized by x-ray powder diffraction and the cell parameters were determined by least square refinement. The oxygen content was determined by TGA measurement and the iodometric titration. The electrical conductivity was measured with the four-probe technique. All the samples show a metal-semiconductor transition. The room temperature resistivity decreases with increasing the amount of divalent ions. The magnetic susceptibility showed Pauli ferromagnetic behavior from room temperature to 80K and then paramagnetic behavior at low temperature.

Authors:
;  [1]
  1. The State Univ. of New Jersey, Piscataway, NJ (United States)
Publication Date:
OSTI Identifier:
141078
Report Number(s):
CONF-930304-
TRN: 93:003688-0751
Resource Type:
Conference
Resource Relation:
Conference: 205. American Chemical Society national meeting, Denver, CO (United States), 28 Mar - 2 Apr 1993; Other Information: PBD: 1993; Related Information: Is Part Of 205th ACS national meeting; PB: 1951 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 40 CHEMISTRY; LANTHANUM OXIDES; PHASE STUDIES; CHEMICAL PREPARATION; PHYSICAL PROPERTIES; NICKELATES; INTERMETALLIC COMPOUNDS; SOLID SOLUTIONS; CALCIUM OXIDES; STRONTIUM OXIDES; BARIUM OXIDES; LEAST SQUARE FIT; ELECTRICAL PROPERTIES; MAGNETIC PROPERTIES; TEMPERATURE DEPENDENCE

Citation Formats

Zhang, Z, and Greenblatt, M. Synthesis, structure and property investigation of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}. United States: N. p., 1993. Web.
Zhang, Z, & Greenblatt, M. Synthesis, structure and property investigation of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}. United States.
Zhang, Z, and Greenblatt, M. Fri . "Synthesis, structure and property investigation of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}". United States.
@article{osti_141078,
title = {Synthesis, structure and property investigation of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}},
author = {Zhang, Z and Greenblatt, M},
abstractNote = {The solid solution series of La{sub 3{minus}x}M{sub x}Ni{sub 2}O{sub 7{minus}{delta}} (M=Ca{sup 2+}, Sr{sup 2+} and Ba{sup 2+}, 0 < x < 0.2) have been prepared through alkaline solution method. The phases were characterized by x-ray powder diffraction and the cell parameters were determined by least square refinement. The oxygen content was determined by TGA measurement and the iodometric titration. The electrical conductivity was measured with the four-probe technique. All the samples show a metal-semiconductor transition. The room temperature resistivity decreases with increasing the amount of divalent ions. The magnetic susceptibility showed Pauli ferromagnetic behavior from room temperature to 80K and then paramagnetic behavior at low temperature.},
doi = {},
url = {https://www.osti.gov/biblio/141078}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {12}
}

Conference:
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