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Title: Spin and orbital ordering in Y1-xLaxVO₃

Abstract

The spin and orbital ordering in Y1-xLaxVO₃ (0.30 ≤ x ≤ 1.0) has been studied to map out the phase diagram over the whole doping range 0 ≤ x ≤ 1. The phase diagram is compared with that for RVO₃ (R = rare earth or Y) perovskites without A-site variance. For x > 0.20, no long-range orbital ordering was observed above the magnetic ordering temperature TN; the magnetic order is accompanied by a lattice anomaly at a Tt ≤ TN as in LaVO₃. The magnetic ordering below Tt ≤ TN is G type in the compositional range 0.20 ≤ x ≤ 0.40 and C type in the range 0.738 ≤ x ≤ 1.0. Magnetization and neutron powder diffraction measurements point to the coexistence below TN of the two magnetic phases in the compositional range 0.4 < x < 0.738. Samples in the compositional range 0.20 < x ≤ 1.0 are characterized by an additional suppression of a glasslike thermal conductivity in the temperature interval TN < T < T* and a change in the slope of 1/χ(T). We argue that T* represents a temperature below which spin and orbital fluctuations couple together via λL∙S.

Authors:
; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1098338
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 84 Journal Issue: 21; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Yan, J.-Q., Zhou, J.-S., Cheng, J. G., Goodenough, J. B., Ren, Y., Llobet, A., and McQueeney, R. J. Spin and orbital ordering in Y1-xLaxVO₃. United States: N. p., 2011. Web. doi:10.1103/PhysRevB.84.214405.
Yan, J.-Q., Zhou, J.-S., Cheng, J. G., Goodenough, J. B., Ren, Y., Llobet, A., & McQueeney, R. J. Spin and orbital ordering in Y1-xLaxVO₃. United States. https://doi.org/10.1103/PhysRevB.84.214405
Yan, J.-Q., Zhou, J.-S., Cheng, J. G., Goodenough, J. B., Ren, Y., Llobet, A., and McQueeney, R. J. Fri . "Spin and orbital ordering in Y1-xLaxVO₃". United States. https://doi.org/10.1103/PhysRevB.84.214405.
@article{osti_1098338,
title = {Spin and orbital ordering in Y1-xLaxVO₃},
author = {Yan, J.-Q. and Zhou, J.-S. and Cheng, J. G. and Goodenough, J. B. and Ren, Y. and Llobet, A. and McQueeney, R. J.},
abstractNote = {The spin and orbital ordering in Y1-xLaxVO₃ (0.30 ≤ x ≤ 1.0) has been studied to map out the phase diagram over the whole doping range 0 ≤ x ≤ 1. The phase diagram is compared with that for RVO₃ (R = rare earth or Y) perovskites without A-site variance. For x > 0.20, no long-range orbital ordering was observed above the magnetic ordering temperature TN; the magnetic order is accompanied by a lattice anomaly at a Tt ≤ TN as in LaVO₃. The magnetic ordering below Tt ≤ TN is G type in the compositional range 0.20 ≤ x ≤ 0.40 and C type in the range 0.738 ≤ x ≤ 1.0. Magnetization and neutron powder diffraction measurements point to the coexistence below TN of the two magnetic phases in the compositional range 0.4 < x < 0.738. Samples in the compositional range 0.20 < x ≤ 1.0 are characterized by an additional suppression of a glasslike thermal conductivity in the temperature interval TN < T < T* and a change in the slope of 1/χ(T). We argue that T* represents a temperature below which spin and orbital fluctuations couple together via λL∙S.},
doi = {10.1103/PhysRevB.84.214405},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 21,
volume = 84,
place = {United States},
year = {Fri Dec 02 00:00:00 EST 2011},
month = {Fri Dec 02 00:00:00 EST 2011}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevB.84.214405

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