Publications (26)
Understanding the anomalous thermoelectric behaviour of Fe-V-W-Al based thin films
Kavita Yadav, Yuya Tanaka, Kotaro Hirose +3
We have investigated the thermoelectric and thermal behaviour of Fe-V-W-Al based thin films prepared using radio frequency magnetron sputtering technique at different base pressure…
Point nodes persisting far beyond Tc in Bi2212
Takeshi Kondo, W. Malaeb, Y. Ishida +5
In contrast to a complex feature of antinodal state, suffering from competing order(s), the "pure" pairing gap of cuprates is obtained in the nodal region, which therefore holds th…
Direct evidence for a competition between the pseudogap and high temperature superconductivity in the cuprates
Takeshi Kondo, Rustem Khasanov, Tsunehiro Takeuchi +2
A pairing gap and coherence are the two hallmarks of superconductivity. In a classical BCS superconductor they are established simultaneously at Tc. In the cuprates, however, an en…
Anomalous dependence of thermoelectric parameters on carrier concentration and electronic structure in Mn-substituted Fe2CrAl Heusler alloy
Kavita Yadav, Saurabh Singh, Omprakash Muthuswamy +2
We investigate the high temperature thermoelectric properties of Heusler alloys Fe2-xMnxCrAl (0<x<1). Substitution of 12.5% Mn at Fe-site (x = 0.25) causes a significant increase i…
Evidence for energy-dependent scattering dominating thermoelectricity in heavy fermion systems
Daiki Goto, Kentaro Kuga, Kiyohisa Tanaka +2
In the field of thermoelectric materials and devices, improving energy conversion efficiency remains a long-standing challenge. As a promising approach to address this issue, utili…
Reduced Hall carrier density in the overdoped strange metal regime of cuprate superconductors
Carsten Putzke, Siham Benhabib, Wojciech Tabis +10
Efforts to understand the microscopic origin of superconductivity in the cuprates are dependent on knowledge of the normal state. The Hall number in the low temperature, high field…