158 citations · 358 across the 6 of their papers we have counts for
6 papers
Importance of non-parabolic band effects in the thermoelectric properties of semiconductors
Xin Chen, David Parker, David J. Singh
We present an analysis of the thermoelectric properties of of -type GeTe and SnTe in relation to the lead chalcogenides PbTe and PbSe. We find that the singly degenerate conduct…
2DEGs at perovskite interfaces between KTaO3 or KNbO3 and stannates
X. F. Fan, W. T. Zheng, X. Chen +1
We report density functional studies of electron rich interfaces between KTaO3 or KNbO3 and CaSnO3 or ZnSnO3 and in particular the nature of the interfacial electron gasses that ca…
Origin of the phase transition in IrTe2: structural modulation and local bonding instability
Huibo Cao, Bryan C. Chakoumakos, Xin Chen +7
We used X-ray/neutron diffraction to determine the low temperature (LT) structure of IrTe2. A structural modulation was observed with a wavevector of k =(1/5, 0, 1/5) below Ts?285…
Potential thermoelectric performance of hole-doped Cu2O
Xin Chen, David Parker, Mao-Hua Du +1
High thermoelectric performance in oxides requires stable conductive materials that have suitable band structures. Here we show based on an analysis of the thermopower and related…
High three dimensional thermoelectric performance from low dimensional bands
David Parker, Xin Chen, David J. Singh
Reduced dimensionality has long been regarded as an important strategy for increasing thermoelectric performance, for example in superlattices and other engineered structures. Here…
Acoustic impedance and interface phonon scattering in BiTe and other semiconducting materials
Xin Chen, David Parker, David J. Singh
We present first principles calculations of the phonon dispersions of Bi2Te3 and discuss these in relation to the acoustic phonon interface scattering in ceramics. The phonon dispe…