P. UdomsamuthiruiS. RakpanichS. YoksanMahidol University2018-07-242018-07-242003-12-01Physica Status Solidi (B) Basic Research. Vol.240, No.3 (2003), 591-595037019722-s2.0-0346938313https://repository.li.mahidol.ac.th/handle/20.500.14594/20949An analytical result for the normalized jump of the heat capacity ΔC/CN is derived for in-plane anisotropic s-wave superconductors within the framework of the weak-coupling BCS approach. Our results show that within the anisotropy gap model the value of ΔC/C N must be less than the BCS value and the effect of in-plane asymmetry will reduce or increase the value of ΔC/CN of in-plane symmetry depending on its parameters. © 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Mahidol UniversityMaterials SciencePhysics and AstronomyArticleSCOPUS10.1002/pssb.200301884