Speaker
Junying Shen
(Paul Scherrer Institut)
Description
The well-known Q-phase in CeCoIn5 is a rare example of cooperative coexistence of superconducting and magnetic order. For Nd0.05Ce0.95CoIn5, a second magnetic phase is stabilized at zero magnetic field with identical symmetry of Q-phase separated by a quantum critical point [1]. We present studies on 2% and 3.5% Nd-doped CeCoIn5 which interestingly shows that the SDW phase vanishes with increasing magnetic fields before the Q-phase is stabilized. This suggests that the two phases are separated by a disordered magnetic phase for low Nd-doped CeCoIn5, representing for two magnetic instabilities and suggesting different origins of the two phases.
[1] S. Gerber et al, Nature Physics 10, 126 (2014).
Author
Junying Shen
(Paul Scherrer Institut)
Co-authors
Damaris Tartarotti Maimone
(Paul Scherrer Institut)
Daniel G. Mazzone
(Paul Scherrer Institut)
Stephane Raymond
(Univ. Grenoble Alpes and CEA)
Nicolas Gauthier
(Paul Scherrer Institut)
R. Yadav
(Paul Scherrer Institut)
Jorge Gavilano
(Paul Scherrer Institut)
Marek Bartkowiak
(Paul Scherrer Institut)
Prof.
Michel Kenzelmann
(Paul Scherrer Institut)
