Journal
PHYSICAL REVIEW LETTERS
Volume 101, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.177002
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Funding
- Los Alamos LDRD program
- Korea Science and Engineering Foundation (KOSEF)
- Korea government [R01-2008-000-10570-0]
- National Research Foundation of Korea [R01-2008-000-10570-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report field-orientation specific heat studies of the pressure-induced heavy-fermion superconductor CeRhIn5. These experiments provide the momentum-dependent superconducting gap function for the first time in any pressure-induced superconductor. In the coexisting phase of superconductivity and antiferromagnetism, field rotation within the Ce-In plane reveals fourfold modulation in the density of states, which favors a d-wave order parameter and constrains a theory of the interplay between superconductivity and magnetism.
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