Investigation of Vortex Behavior in the Organic Superconductor <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>κ</mi><mo>−</mo><mo>(</mo><mi>BEDT</mi><mo>−</mo><mi>TTF</mi><mrow><msub><mrow><mo>)</mo></mrow><mrow><mn>2</mn></mrow></msub></mrow><mi>Cu</mi><mo>(</mo><mi>SCN</mi><mrow><msub><mrow><mo>)</mo></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> Using Muon Spin Rotation

S. L. Lee; F. L. Pratt; S. J. Blundell; C. M. Aegerter; P. A. Pattenden; K. H. Chow; E. M. Forgan; T. Sasaki; W. Hayes; H. Keller

doi:10.1103/PhysRevLett.79.1563

Investigation of Vortex Behavior in the Organic Superconductor $κ - (BEDT - TTF)_{2} Cu (SCN)_{2}$ Using Muon Spin Rotation

S. L. Lee, F. L. Pratt, S. J. Blundell, C. M. Aegerter, P. A. Pattenden, K. H. Chow, E. M. Forgan, T. Sasaki, W. Hayes, and H. Keller

Phys. Rev. Lett. 79, 1563 – Published 25 August 1997

Abstract

Muon spin rotation ( $μ SR$ ) measurements have been performed on the organic superconductor $κ - (BEDT - TTF)_{2} Cu (SCN)_{2}$ in order to investigate its exotic vortex behavior. Previously unobserved features of the $μ SR$ line shapes have been measured at low fields and temperatures. In the mixed state the existence of a lattice composed of linear vortices is demonstrated at low fields. The breakup of this well-ordered lattice has furthermore been observed as a function of both field and temperature.

Received 14 January 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.1563

Authors & Affiliations

S. L. Lee¹, F. L. Pratt^2,3, S. J. Blundell², C. M. Aegerter⁴, P. A. Pattenden², K. H. Chow², E. M. Forgan⁵, T. Sasaki⁶, W. Hayes², and H. Keller⁴

¹School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, United Kingdom
²Department of Physics, The Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom
³RIKEN-RAL, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
⁴Physik-Institut der Universität Zürich, CH-8057 Zürich, Switzerland
⁵School of Physics and Space Research, University of Birmingham, Birmingham B15 2TT, United Kingdom
⁶Institute for Materials Research, Tohoku University, Tohoku, Japan