Joseph Alec Wilcox
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View article: Breakdown of the critical state in the ferromagnetic superconductor EuFe$_2$(As$_{1-x}$P$_x$)$_2$
Breakdown of the critical state in the ferromagnetic superconductor EuFe$_2$(As$_{1-x}$P$_x$)$_2$ Open
There are very few materials in which ferromagnetism coexists with superconductivity due to the destructive effect of the magnetic exchange field on singlet Cooper pairs. The iron-based superconductor EuFe$_2$(As$_{1-x}$P$_x$)$_2$ is there…
View article: Magnetically controlled vortex dynamics in a ferromagnetic superconductor
Magnetically controlled vortex dynamics in a ferromagnetic superconductor Open
Ferromagnetic superconductors are exceptionally rare because the strong ferromagnetic exchange field usually destroys singlet superconductivity. EuFe 2 (As 1− x P x ) 2 , an iron-based superconductor with a maximum critical temperature of …
View article: Magnetically-controlled Vortex Dynamics in a Ferromagnetic Superconductor
Magnetically-controlled Vortex Dynamics in a Ferromagnetic Superconductor Open
Ferromagnetic superconductors are exceptionally rare because the strong ferromagnetic exchange field usually destroys singlet superconductivity. EuFe$_2$(As$_{1-x}$P$_x$)$_2$, an iron-based superconductor with a maximum critical temperatur…
View article: Superconducting Energy Gap Structure of CsV$_3$Sb$_5$ from Magnetic Penetration Depth Measurements
Superconducting Energy Gap Structure of CsV$_3$Sb$_5$ from Magnetic Penetration Depth Measurements Open
Experimental determination of the structure of the superconducting order parameter in the kagome lattice compound CsV$_3$Sb$_5$ is an essential step towards understanding the nature of the superconducting pairing in this material. Here we …
View article: Superconducting energy gap structure of CsV<sub>3</sub>Sb<sub>5</sub> from magnetic penetration depth measurements
Superconducting energy gap structure of CsV<sub>3</sub>Sb<sub>5</sub> from magnetic penetration depth measurements Open
Experimental determination of the structure of the superconducting order parameter in the kagome lattice compound CsV 3 Sb 5 is an essential step towards understanding the nature of the superconducting pairing in this material. Here we rep…
View article: Observation of the non-linear Meissner effect
Observation of the non-linear Meissner effect Open
View article: Probing unconventional superconductivity using the field dependent magnetic penetration depth
Probing unconventional superconductivity using the field dependent magnetic penetration depth Open
The temperature dependence of the magnetic penetration depth $\lambda$ has been widely used to investigate the momentum space structure of the superconducting energy gap, in-particular whether it has nodes or not. Here we show that the mag…
View article: Full-Gap Superconductivity Robust against Disorder in Heavy-Fermion <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>CeCu</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi>Si</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
Full-Gap Superconductivity Robust against Disorder in Heavy-Fermion Open
A key aspect of unconventional pairing by the antiferromagnetic spin-fluctuation mechanism is that the superconducting energy gap must have the opposite sign on different parts of the Fermi surface. Recent observations of non-nodal gap str…
View article: Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu <sub>2</sub> Si <sub>2</sub>
Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu <sub>2</sub> Si <sub>2</sub> Open
Heavy electrons with extremely strong Coulomb repulsions can condense into a fully gapped s-wave superconducting state.