History Effects and Phase Diagram near the Lower Critical Point in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>YBa</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi>Cu</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow><mrow><msub><mrow><mi>O</mi></mrow><mrow><mn>7</mn></mrow></msub></mrow></math></span> Single Crystals

A. A. Zhukov; P. A. J. de Groot; S. Kokkaliaris; E. di Nicolo; A. G. M. Jansen; E. Mossang; G. Martinez; P. Wyder; T. Wolf; H. Küpfer; H. Asaoka; R. Gagnon; L. Taillefer

doi:10.1103/PhysRevLett.87.017006

History Effects and Phase Diagram near the Lower Critical Point in ${YBa}_{2} {Cu}_{3} O_{7}$ Single Crystals

A. A. Zhukov, P. A. J. de Groot, S. Kokkaliaris, E. di Nicolo, A. G. M. Jansen, E. Mossang, G. Martinez, P. Wyder, T. Wolf, H. Küpfer, H. Asaoka, R. Gagnon, and L. Taillefer

Phys. Rev. Lett. 87, 017006 – Published 19 June 2001

Abstract

Using a sensitive torque magnetometer we have studied magnetization curves for untwinned overdoped ${YBa}_{2} {Cu}_{3} O_{7}$ single crystals in fields of up to 28 T. We demonstrate the existence of history effects below the lower critical point and provide a full demarcation of the Bragg-glass phase. A pronounced symmetry is observed in the behavior of the phase lines, irreversible magnetization, and value of the magnetization jump near both critical points.

Received 7 November 2000

DOI:https://doi.org/10.1103/PhysRevLett.87.017006

Authors & Affiliations

A. A. Zhukov^*, P. A. J. de Groot, S. Kokkaliaris, and E. di Nicolo

Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom

A. G. M. Jansen, E. Mossang, G. Martinez, and P. Wyder

Grenoble High Magnetic Field Laboratory, MPIF-CNRS, BP 166, 38042 Grenoble Cedex 09, France

T. Wolf and H. Küpfer

Forschungszentrum Karlsruhe, Institut für Technische Physik, D-76021 Karlsruhe, Germany

H. Asaoka

Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki 319-11, Japan

R. Gagnon and L. Taillefer

Department of Physics, McGill University, Montreal, Canada H3A 2T8

^*On leave from the Chemistry Department, Moscow State University, 117234 Moscow, Russia.

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Vol. 87, Iss. 1 — 2 July 2001

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Physical Review Letters

History Effects and Phase Diagram near the Lower Critical Point in YBa2Cu3O7 Single Crystals

A. A. Zhukov, P. A. J. de Groot, S. Kokkaliaris, E. di Nicolo, A. G. M. Jansen, E. Mossang, G. Martinez, P. Wyder, T. Wolf, H. Küpfer, H. Asaoka, R. Gagnon, and L. Taillefer

Phys. Rev. Lett. 87, 017006 – Published 19 June 2001

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History Effects and Phase Diagram near the Lower Critical Point in ${YBa}_{2} {Cu}_{3} O_{7}$ Single Crystals