Abstract
Neutron scattering experiments were carried out for a non-centrosymmetric heavy-fermion superconductor CePt 3 Si in order to understand the novel superconducting state and magnetism. Antiferromagnetic reflections with q =(0 0 1/2) clearly persist below T sc . No significant anomaly has been found in either the Bragg profile or intensity on passing through T sc within our experimental accuracy. These results indicate a microscopic coexistence of antiferromagnetism and heavy-fermion superconductivity in CePt 3 Si. Under magnetic fields, T N is almost constant up to 5 T for fields H ∥[0 0 1]. Note that the antiferromagnetic intensity starts increasing around 2 T at 1.51 K below T N , indicating the enhancement of antiferromagnetic moment of Ce by applying fields. The observed inflection field and the field independent T N are consistent with the result of magnetization, resistivity and magnetostriction measurements. These results reveal the stability of antiferromagnetic state in CePt 3 Si.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
