Lattice effect in Pr doped La-Sr-Mn-O perovskite

Z. B. Guo; N. Zhang; W. P. Ding; W. Yang; J. R. Zhang; Y. W. Du

doi:10.1016/S0038-1098(96)00503-0

Lattice effect in Pr doped La-Sr-Mn-O perovskite

Z. B. Guo^*, N. Zhang, W. P. Ding, W. Yang, J. R. Zhang, Y. W. Du

^*Corresponding author for this work

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

19 Scopus citations

Abstract

We have measured resistivity, magnetization and magnetoresistance in polycrystalline La_0.7-xPr_xSr_0.3MnO₃ with fixed carrier concentration. With decreasing the average ionic radius of the La site (r_A), we found a decrease in T_c, an increase in resistivity at T_c, and an increase in the magnitude of the magnetoresistance. The samples show a metal-insulator transition in the high-temperature paramagnetic phase with the variation of (r_A). These results demonstrate the close relationship between (r_A) and the band structure.

Original language	English (US)
Pages (from-to)	769-771
Number of pages	3
Journal	Solid State Communications
Volume	100
Issue number	11
DOIs	https://doi.org/10.1016/S0038-1098(96)00503-0
State	Published - Dec 1996
Externally published	Yes

Keywords

B. chemical synthesis
C. electronic band structure
C. phase transitions

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/S0038-1098(96)00503-0

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title = "Lattice effect in Pr doped La-Sr-Mn-O perovskite",

abstract = "We have measured resistivity, magnetization and magnetoresistance in polycrystalline La0.7-xPrxSr0.3MnO3 with fixed carrier concentration. With decreasing the average ionic radius of the La site (rA), we found a decrease in Tc, an increase in resistivity at Tc, and an increase in the magnitude of the magnetoresistance. The samples show a metal-insulator transition in the high-temperature paramagnetic phase with the variation of (rA). These results demonstrate the close relationship between (rA) and the band structure.",

keywords = "B. chemical synthesis, C. electronic band structure, C. phase transitions",

author = "Guo, {Z. B.} and N. Zhang and Ding, {W. P.} and W. Yang and Zhang, {J. R.} and Du, {Y. W.}",

year = "1996",

month = dec,

doi = "10.1016/S0038-1098(96)00503-0",

language = "English (US)",

volume = "100",

pages = "769--771",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Lattice effect in Pr doped La-Sr-Mn-O perovskite

AU - Guo, Z. B.

AU - Zhang, N.

AU - Ding, W. P.

AU - Yang, W.

AU - Zhang, J. R.

AU - Du, Y. W.

PY - 1996/12

Y1 - 1996/12

N2 - We have measured resistivity, magnetization and magnetoresistance in polycrystalline La0.7-xPrxSr0.3MnO3 with fixed carrier concentration. With decreasing the average ionic radius of the La site (rA), we found a decrease in Tc, an increase in resistivity at Tc, and an increase in the magnitude of the magnetoresistance. The samples show a metal-insulator transition in the high-temperature paramagnetic phase with the variation of (rA). These results demonstrate the close relationship between (rA) and the band structure.

AB - We have measured resistivity, magnetization and magnetoresistance in polycrystalline La0.7-xPrxSr0.3MnO3 with fixed carrier concentration. With decreasing the average ionic radius of the La site (rA), we found a decrease in Tc, an increase in resistivity at Tc, and an increase in the magnitude of the magnetoresistance. The samples show a metal-insulator transition in the high-temperature paramagnetic phase with the variation of (rA). These results demonstrate the close relationship between (rA) and the band structure.

KW - B. chemical synthesis

KW - C. electronic band structure

KW - C. phase transitions

UR - http://www.scopus.com/inward/record.url?scp=0030401624&partnerID=8YFLogxK

U2 - 10.1016/S0038-1098(96)00503-0

DO - 10.1016/S0038-1098(96)00503-0

M3 - Article

AN - SCOPUS:0030401624

SN - 0038-1098

VL - 100

SP - 769

EP - 771

JO - Solid State Communications

JF - Solid State Communications

IS - 11

ER -

Lattice effect in Pr doped La-Sr-Mn-O perovskite

Abstract

Keywords

ASJC Scopus subject areas

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