Magnetic structure of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">CeRhIn</mi></mrow><mrow><mn>5</mn></mrow></msub></mrow></math></span> as a function of pressure and temperature

A. Llobet; J. S. Gardner; E. G. Moshopoulou; J.-M. Mignot; M. Nicklas; W. Bao; N. O. Moreno; P. G. Pagliuso; I. N. Goncharenko; J. L. Sarrao; J. D. Thompson

doi:10.1103/PhysRevB.69.024403

Magnetic structure of ${CeRhIn}_{5}$ as a function of pressure and temperature

A. Llobet, J. S. Gardner, E. G. Moshopoulou, J.-M. Mignot, M. Nicklas, W. Bao, N. O. Moreno, P. G. Pagliuso, I. N. Goncharenko, J. L. Sarrao, and J. D. Thompson

Phys. Rev. B 69, 024403 – Published 13 January 2004

Abstract

We report magnetic neutron-diffraction and electrical resistivity studies on single crystals of the heavy-fermion antiferromagnet ${CeRhIn}_{5}$ at pressures up to 2.3 GPa. These experiments show that the staggered moment of Ce and the incommensurate magnetic structure change weakly with applied pressure up to 1.63 GPa, where resistivity, specific heat and nuclear quadrupole resonance measurements confirm the presence of bulk superconductivity. This work places important constraints on an interpretation of the relationship between antiferromagnetism and unconventional superconductivity in ${CeRhIn}_{5} .$

Received 30 June 2003

DOI:https://doi.org/10.1103/PhysRevB.69.024403

Authors & Affiliations

A. Llobet^1,*, J. S. Gardner^2,†, E. G. Moshopoulou³, J.-M. Mignot⁴, M. Nicklas^1,‡, W. Bao¹, N. O. Moreno¹, P. G. Pagliuso^1,§, I. N. Goncharenko⁴, J. L. Sarrao¹, and J. D. Thompson¹

¹Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
²NRC Canada, NPMR, Chalk River Laboratories, Chalk River, Ontario, Canada K0J 1J0
³National Center for Scientific Research “Demokritos,” Institute of Materials Sciences, 15310 Agia Paraskevi, Greece
⁴Laboratoire Léon Brillouin (CEA-CNRS), CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France

^*Electronic address: allobet@lanl.gov
^†Present addresses: Physics Department, Brookhaven National Laboratory, Upton, New York 11973 and NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8562.
^‡Present address: Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 01187 Dresden, Germany.
^§Present address: Instituto de Física “Gleb Wataghin,” UNICAMP, 13083-970, Campinas-SP, Brazil.

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Vol. 69, Iss. 2 — 1 January 2004

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