Exploring the fragile antiferromagnetic superconducting phase in CeCoIn₅

TY - JOUR

T1 - Exploring the fragile antiferromagnetic superconducting phase in CeCoIn5

AU - Blackburn, E.

AU - Das, P.

AU - Eskildsen, M. R.

AU - Forgan, E. M.

AU - Laver, M.

PY - 2010/10/27

Y1 - 2010/10/27

N2 - CeCoIn5 is a heavy fermion type-II superconductor showing clear signs of Pauli-limited superconductivity. A variety of measurements give evidence for a transition at high magnetic fields inside the superconducting state, when the field is applied either parallel to or perpendicular to the c axis. When the field is perpendicular to the c axis, antiferromagnetic order develops on the high-field side of the transition. This order remains as the field is rotated out of the basal plane, but the associated moment eventually disappears above 17°, indicating that anomalies seen with the field parallel to the c axis are not related to this magnetic order. We discuss the implications of this finding.

AB - CeCoIn5 is a heavy fermion type-II superconductor showing clear signs of Pauli-limited superconductivity. A variety of measurements give evidence for a transition at high magnetic fields inside the superconducting state, when the field is applied either parallel to or perpendicular to the c axis. When the field is perpendicular to the c axis, antiferromagnetic order develops on the high-field side of the transition. This order remains as the field is rotated out of the basal plane, but the associated moment eventually disappears above 17°, indicating that anomalies seen with the field parallel to the c axis are not related to this magnetic order. We discuss the implications of this finding.

U2 - 10.1103/PhysRevLett.105.187001

DO - 10.1103/PhysRevLett.105.187001

M3 - Journal article

C2 - 21231126

SN - 0031-9007

VL - 105

SP - 187001

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

ER -