Superconducting properties and gap structure of the topological superconductor candidate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Ti</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:mi>Sb</mml:mi></mml:mrow></mml:math>
Ramakanta Chapai, M. P. Smylie, H. Hebbeker, Duck Young Chung, W. K. Kwok, J. F. Mitchell, U. Welp
Abstract
$A$15 materials have been studied extensively due to the importance of Nb${}_{3}$Sn for the fabrication of high-field superconducting magnets. Recently, their topological properties have generated substantial interest as these materials have potential to exhibit exotic phenomena, such as topological superconductivity and large spin Hall effect. Here, the authors employ various complementary bulk measurement techniques to characterize the superconducting properties of the $A$15 material Ti${}_{3}$Sb. They report modestly strong superconducting coupling, indications for paramagnetic limiting, and a full superconducting gap.
Topics & Concepts
SuperconductivityPenetration depthLondon penetration depthCondensed matter physicsLambdaPhysicsCoherence lengthCritical fieldTopology (electrical circuits)Quantum mechanicsElectrical engineeringEngineeringTopological Materials and PhenomenaIron-based superconductors researchRare-earth and actinide compounds