Field-induced transition within the superconducting state of CeRh <sub>2</sub> As <sub>2</sub>
Seunghyun Khim, J. F. Landaeta, Jacintha Banda, N. Bannor, M. Brando, P. M. R. Brydon, D. Hafner, R. Küchler, Raúl Cardoso‐Gil, U. Stockert, A. P. Mackenzie, D. F. Agterberg, C. Geibel, Elena Hassinger
Abstract
Not your usual superconductor Most superconductors have only one superconducting phase. Khim et al . measured the magnetic susceptibility of the heavy fermion material CeRh 2 As 2 to reveal the presence of two distinct superconducting phases, one of which emerges from the other when an external magnetic field is applied (see the Perspective by Pourret and Knebel). The researchers ascribe the unusual properties of CeRh 2 As 2 to its crystal structure, which is globally centrosymmetric but consists of noncentrosymmetric layers. —JS
Topics & Concepts
SuperconductivityCondensed matter physicsPhysicsCritical fieldPhase transitionField (mathematics)Point reflectionTransition temperatureMathematicsPure mathematicsRare-earth and actinide compoundsIron-based superconductors researchPhysics of Superconductivity and Magnetism