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Updated: Feb 7, 2026

Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Superconductivity in a misfit layered compound (SnSe)1.16(NbSe2)
Hua Bai1, Xiaohui Yang1, Yi Liu1
1Department of Physics, Zhejiang University, Hangzhou 310027, People's Republic of China.
None:
The large size single crystals of (SnSe)1.16(NbSe2) misfit layered compound were grown and superconductivity with T c of 3.4 K was first discovered in this system. Powder x-ray diffraction and high resolution transmission electron microscopy clearly display the misfit feature between SnSe and NbSe2 subsystems. The Sommerfeld coefficient γ inferred from specific-heat measurements is 16.73 mJ mol-1 K-2, slightly larger than the usual misfit compounds. The normalized specific heat jump [Formula: see text] is about 0.98, and the electron-phonon coupling constant [Formula: see text] is estimated to be 0.80. The estimated value of the in-plane upper critical magnetic field, [Formula: see text](0), is about 7.82 T, exceeding the Pauli paramagnetic limit slightly. Both the specific-heat and H c2 data suggest that (SnSe)1.16(NbSe2) is a multi-band superconductor.
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