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Title: Reduction of Ordered Moment and N{acute e}el Temperature of Quasi-One-Dimensional Antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}

Abstract

We report elastic neutron diffraction and muon spin relaxation ({mu}SR) measurements of the quasi-one-dimensional antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}, which have extraordinarily reduced T{sub N}/J ratios. We observe almost resolution-limited antiferromagnetic Bragg reflections in Sr{sub 2}CuO{sub 3} and obtain a reduced ordered moment size of {approximately}0.06{mu}{sub B}. We find that the ratio of ordered moment size {mu}(Ca{sub 2}CuO{sub 3})/{mu}(Sr{sub 2}CuO{sub 3})=1.5(1) roughly scales with their N{acute e}el temperatures, which suggests that the ordered moment size of quasi-one-dimensional antiferromagnets decreases continuously in the limit of vanishing interchain interactions. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
; ; ; ; ; ;  [1]; ; ;  [2]; ;  [3];  [4]; ;  [5]
  1. Department of Physics, Columbia University, New York, New York 10027 (United States)
  2. Department of Applied Physics, University of Tokyo, Tokyo 113 (Japan)
  3. Department of Physics, Tohoku University, Sendai 980-77 (Japan)
  4. Institute of Inorganic Synthesis, Yamanashi University, Kofu 400 (Japan)
  5. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
467460
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 78; Journal Issue: 9; Other Information: PBD: Mar 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; STRONTIUM OXIDES; MAGNETIC MOMENTS; COPPER OXIDES; CALCIUM OXIDES; NEEL TEMPERATURE; NEUTRON DIFFRACTION; MUON SPIN RELAXATION; ANTIFERROMAGNETISM; CRYSTAL STRUCTURE

Citation Formats

Kojima, K, Fudamoto, Y, Larkin, M, Luke, G, Merrin, J, Nachumi, B, Uemura, Y, Motoyama, N, Eisaki, H, Uchida, S, Yamada, K, Endoh, Y, Hosoya, S, Sternlieb, B, and Shirane, G. Reduction of Ordered Moment and N{acute e}el Temperature of Quasi-One-Dimensional Antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}. United States: N. p., 1997. Web. doi:10.1103/PhysRevLett.78.1787.
Kojima, K, Fudamoto, Y, Larkin, M, Luke, G, Merrin, J, Nachumi, B, Uemura, Y, Motoyama, N, Eisaki, H, Uchida, S, Yamada, K, Endoh, Y, Hosoya, S, Sternlieb, B, & Shirane, G. Reduction of Ordered Moment and N{acute e}el Temperature of Quasi-One-Dimensional Antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}. United States. doi:10.1103/PhysRevLett.78.1787.
Kojima, K, Fudamoto, Y, Larkin, M, Luke, G, Merrin, J, Nachumi, B, Uemura, Y, Motoyama, N, Eisaki, H, Uchida, S, Yamada, K, Endoh, Y, Hosoya, S, Sternlieb, B, and Shirane, G. Sat . "Reduction of Ordered Moment and N{acute e}el Temperature of Quasi-One-Dimensional Antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}". United States. doi:10.1103/PhysRevLett.78.1787.
@article{osti_467460,
title = {Reduction of Ordered Moment and N{acute e}el Temperature of Quasi-One-Dimensional Antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}},
author = {Kojima, K and Fudamoto, Y and Larkin, M and Luke, G and Merrin, J and Nachumi, B and Uemura, Y and Motoyama, N and Eisaki, H and Uchida, S and Yamada, K and Endoh, Y and Hosoya, S and Sternlieb, B and Shirane, G},
abstractNote = {We report elastic neutron diffraction and muon spin relaxation ({mu}SR) measurements of the quasi-one-dimensional antiferromagnets Sr{sub 2}CuO{sub 3} and Ca{sub 2}CuO{sub 3}, which have extraordinarily reduced T{sub N}/J ratios. We observe almost resolution-limited antiferromagnetic Bragg reflections in Sr{sub 2}CuO{sub 3} and obtain a reduced ordered moment size of {approximately}0.06{mu}{sub B}. We find that the ratio of ordered moment size {mu}(Ca{sub 2}CuO{sub 3})/{mu}(Sr{sub 2}CuO{sub 3})=1.5(1) roughly scales with their N{acute e}el temperatures, which suggests that the ordered moment size of quasi-one-dimensional antiferromagnets decreases continuously in the limit of vanishing interchain interactions. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.78.1787},
journal = {Physical Review Letters},
number = 9,
volume = 78,
place = {United States},
year = {1997},
month = {3}
}