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Title: Neutron-scattering study of stripe-phase order of holes and spins in La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}

Abstract

We present a neutron diffraction study of charge and spin order within the CuO{sub 2} planes of La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}, a crystal in which superconductivity is anomalously suppressed. At low temperatures we observe elastic magnetic superlattice peaks of the type (1/2{plus_minus}{epsilon},1/2,0) and charge-order peaks at (2{plus_minus}2{epsilon},0,0), where {epsilon}=0.118. After cooling the crystal through the low-temperature-orthorhombic (LTO) to low-temperature-tetragonal (LTT) phase transition near 70 K, the charge-order peaks appear first at {approximately}60 K, with the magnetic peaks appearing below 50 K. The magnetic peaks increase in intensity by an order of magnitude below 3 K due to ordering of the Nd ions. We show that the observed diffraction features are consistent with stripe-phase order, in which the dopant-induced holes collect in domain walls that separate antiferromagnetic antiphase domains. The {bold Q} dependence of the magnetic scattering indicates that the low-temperature correlation length within the planes is substantial ({approximately}170 A), but only very weak correlations exist between next-nearest-neighbor planes. Correlations between nearest-neighbor layers are frustrated by pinning of the charge stripes to the lattice distortions of the LTT phase. The spin-density-wave amplitude corresponds to a Cu moment of 0.10{plus_minus}0.03 {mu}{sub {ital B}}. The behavior of the electrical resistivity within themore » LTT phase is examined, and the significance of stripe-phase correlations for understanding the unusual transport properties of layered cuprates is discussed. {copyright} {ital 1996 The American Physical Society.}« less

Authors:
;  [1]; ; ;  [2];  [3]
  1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  2. Superconductivity Research Course, The University of Tokyo, Yayoi 2-11-16, Bunkyo-ku, Tokyo 113 (Japan)
  3. Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027 (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
383191
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 54; Journal Issue: 10; Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LANTHANUM OXIDES; MAGNETIC PROPERTIES; NEODYMIUM OXIDES; STRONTIUM OXIDES; COPPER OXIDES; MONOCRYSTALS; ELECTRIC CONDUCTIVITY; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0000-0013 K; NEUTRON DIFFRACTION; SUPERLATTICES; MULTI-ELEMENT COMPOUNDS; LAYERED MATERIALS

Citation Formats

Tranquada, J M, Axe, J D, Ichikawa, N, Nakamura, Y, Uchida, S, and Nachumi, B. Neutron-scattering study of stripe-phase order of holes and spins in La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.54.7489.
Tranquada, J M, Axe, J D, Ichikawa, N, Nakamura, Y, Uchida, S, & Nachumi, B. Neutron-scattering study of stripe-phase order of holes and spins in La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}. United States. doi:10.1103/PhysRevB.54.7489.
Tranquada, J M, Axe, J D, Ichikawa, N, Nakamura, Y, Uchida, S, and Nachumi, B. Sun . "Neutron-scattering study of stripe-phase order of holes and spins in La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}". United States. doi:10.1103/PhysRevB.54.7489.
@article{osti_383191,
title = {Neutron-scattering study of stripe-phase order of holes and spins in La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}},
author = {Tranquada, J M and Axe, J D and Ichikawa, N and Nakamura, Y and Uchida, S and Nachumi, B},
abstractNote = {We present a neutron diffraction study of charge and spin order within the CuO{sub 2} planes of La{sub 1.48}Nd{sub 0.4}Sr{sub 0.12}CuO{sub 4}, a crystal in which superconductivity is anomalously suppressed. At low temperatures we observe elastic magnetic superlattice peaks of the type (1/2{plus_minus}{epsilon},1/2,0) and charge-order peaks at (2{plus_minus}2{epsilon},0,0), where {epsilon}=0.118. After cooling the crystal through the low-temperature-orthorhombic (LTO) to low-temperature-tetragonal (LTT) phase transition near 70 K, the charge-order peaks appear first at {approximately}60 K, with the magnetic peaks appearing below 50 K. The magnetic peaks increase in intensity by an order of magnitude below 3 K due to ordering of the Nd ions. We show that the observed diffraction features are consistent with stripe-phase order, in which the dopant-induced holes collect in domain walls that separate antiferromagnetic antiphase domains. The {bold Q} dependence of the magnetic scattering indicates that the low-temperature correlation length within the planes is substantial ({approximately}170 A), but only very weak correlations exist between next-nearest-neighbor planes. Correlations between nearest-neighbor layers are frustrated by pinning of the charge stripes to the lattice distortions of the LTT phase. The spin-density-wave amplitude corresponds to a Cu moment of 0.10{plus_minus}0.03 {mu}{sub {ital B}}. The behavior of the electrical resistivity within the LTT phase is examined, and the significance of stripe-phase correlations for understanding the unusual transport properties of layered cuprates is discussed. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.54.7489},
journal = {Physical Review, B: Condensed Matter},
number = 10,
volume = 54,
place = {United States},
year = {1996},
month = {9}
}