Polarized neutron measurement of magnetic order in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">YBa</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Cu</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>6.45</mn></mrow></msub></mrow></math></span>

H. A. Mook; Pengcheng Dai; S. M. Hayden; A. Hiess; S-H Lee; F. Dogan

doi:10.1103/PhysRevB.69.134509

Polarized neutron measurement of magnetic order in ${YBa}_{2} {Cu}_{3} O_{6.45}$

H. A. Mook, Pengcheng Dai, S. M. Hayden, A. Hiess, S-H Lee, and F. Dogan

Phys. Rev. B 69, 134509 – Published 19 April 2004

Abstract

Orbital current order of the $d$ -density-wave type has been postulated to explain the pseudogap in high temperature superconductors. We have performed neutron scattering experiments to search for this order and show here the results obtained on an ${YBa}_{2} {Cu}_{3} O_{6.45}$ sample using the best neutron spectrometers available. We argue that the data are consistent with a small, largely $c$ -axis-directed moment, found below about 200 K.

Received 12 November 2003

DOI:https://doi.org/10.1103/PhysRevB.69.134509

Authors & Affiliations

H. A. Mook¹, Pengcheng Dai^1,2, S. M. Hayden³, A. Hiess⁴, S-H Lee⁵, and F. Dogan⁶

¹Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, USA
²Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996, USA
³H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom
⁴Institut Laue-Langevin, Boîte Postale 156, 38042, Grenoble, France
⁵NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
⁶Department of Ceramic Engineering, University of Missouri–Rolla, 222 McNutt Hall, 1870 Miner Circle, Rolla, Missouri 65409-0330, USA

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Vol. 69, Iss. 13 — 1 April 2004

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