Authors: Hai Huang BinPeng Zhao
Publish Date: 2016/01/08
Volume: 29, Issue: 4, Pages: 885-889
Abstract
Based on a twoband isotropic GinzburgLandau theory we study the magnetic properties of the recently observed superconducting crystal TlNi2Se2 Our exact solution of upper critical field reproduces the experimental data in a broad temperature range It directly underlies the multigap superconductivity in this crystal We also show that the effective mass of the electron for one band is about 20m e while that of the other band is only 06m e This semiheavyfermion feature can qualitatively explain the experimental value of the KadowakiWoods ratio in TlNi2Se2
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