Coexistence and coupling of superconductivity and magnetism in thin film structures.
Superconducting and magnetic order are usually mutually exclusive, and are found to coexist in relatively few materials. We have obtained direct evidence for a spin-density wave (SDW) coexisting with bulk superconductivity in a ferromagnetic-superconducting trilayer. In the superconducting state the amplitude of the SDW is enhanced and modeling the data also suggests a pi/2 phase shift of one component of the SDW, implying a profound coupling of these two forms of order.
Drew
A J
AJ
School of Physics and Astronomy, University of St. Andrews, St. Andrews, KY16 9SS, Scotland, United Kingdom. alanjohn.drew@physics.org
Lee
S L
SL
Charalambous
D
D
Potenza
A
A
Marrows
C
C
Luetkens
H
H
Suter
A
A
Prokscha
T
T
Khasanov
R
R
Morenzoni
E
E
Ucko
D
D
Forgan
E M
EM