Magnetism in semiconducting molybdenum dichalcogenides
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99 GENERAL AND MISCELLANEOUS↗
Engineering topics
Guguchia, Z
Publications and source records attributed to Guguchia, Z.
Signatures of the topological s +-; superconducting order parameter in the type-II Weyl semimetal Td-MoTe2
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99 GENERAL AND MISCELLANEOUS↗
Using uniaxial stress to probe the relationship between competing superconducting states in a cuprate with spin-stripe order
In this work, we report muon spin rotation and magnetic susceptibility experiments on in-plane stress effects on the static spin-stripe order and superconductivity in the cuprate system La 2-x Ba x CuO 4 with x = 0.115. An extremely low uniaxial stress of ~0.1 GPa induces a substantial decrease in the magnetic volume fraction and a dramatic rise in the onset of 3D superconductivity, from ~10 to 32 K; however,the onset of at-least-2D superconductivity is much less sensitive to stress. These results show not only that large-volume-fraction spin-stripe order is anti-correlated with 3D superconducting (SC) coherence, but also that these states are energetically very finely balanced. Moreover, the onset temperatures of 3D superconductivity and spin-stripe order are very similar in the large stress regime. Furthermore, these results strongly suggest a similar pairing mechanism for spin-stripe order, the spatially-modulated 2D and uniform 3D SC orders, imposing an important constraint on theoretical models.
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗