Long-range antiferromagnetic order in quasi-one-dimensional <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Ca</mi></mrow><mrow><mn>0.83</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">CuO</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Sr</mi></mrow><mrow><mn>0.73</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">CuO</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>

G. I. Meijer; C. Rossel; W. Henggeler; L. Keller; F. Fauth; J. Karpinski; H. Schwer; E. M. Kopnin; P. Wachter; R. C. Black; J. Diederichs

doi:10.1103/PhysRevB.58.14452

Long-range antiferromagnetic order in quasi-one-dimensional ${Ca}_{0.83} {CuO}_{2}$ and ${Sr}_{0.73} {CuO}_{2}$

G. I. Meijer, C. Rossel, W. Henggeler, L. Keller, F. Fauth, J. Karpinski, H. Schwer, E. M. Kopnin, P. Wachter, R. C. Black, and J. Diederichs

Phys. Rev. B 58, 14452 – Published 1 December 1998

Abstract

Specific heat, elastic neutron scattering, and torque measurements have been performed on the two quasi-one-dimensional cuprates ${Ca}_{0.83} {CuO}_{2}$ and ${Sr}_{0.73} {CuO}_{2} .$ These compounds consist of infinite ${CuO}_{2}$ chains, which are highly hole doped. In both compounds a peak in the specific heat, attributed to a static magnetic transition, has been observed at $T \sim 10 K .$ Magnetic Bragg peaks were identified in the neutron diffraction patterns, giving evidence of a three-dimensional long-range ordered ground state.

Received 18 June 1998

DOI:https://doi.org/10.1103/PhysRevB.58.14452

Authors & Affiliations

G. I. Meijer

Laboratorium für Festkörperphysik, Swiss Federal Institute of Technology (ETH), 8093 Zürich, Switzerland
IBM Research Division, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland

C. Rossel