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Phase separation and phase transitions in undoped and Rh3+ doped iron pnictide CaFe2As2: a Raman scattering study
V. P. Gnezdilov, A. Yu. Glamazda, P. Lemmens +2
Iron-pnictides Ca(Fe1-xRhx)2As2 (x = 0, 0.035, and 0.19) were studied across the tetragonal-orthorhombic and uncollapsed to collapsed tetragonal phase transitions using Raman spect…
Enhancement of density of states and suppression of superconductivity in site-disordered topological metal LaPtSi
Sitaram Ramakrishnan, Tatsuya Yamakawa, Ryohei Oishi +5
Single crystals of non-centrosymmetric -wave superconductor LaPtSi have been grown by the Czochralski (Cz) technique, whose crystal structure is described by t…
Cuprates phase diagram deduced from magnetic susceptibility: what is the `true' pseudogap line?
Yves Noat, Alain Mauger, Minoru Nohara +3
Two contradictory phase diagrams have dominated the literature of high- cuprate superconductors. Does the pseudogap line cross the superconducting -dome or not? To answer…
Positive Seebeck coefficient in highly doped LaSrCuO (=0.33); its origin and implication
Hao Jin, Alessandro Narduzzo, Minoru Nohara +3
We present a study of the thermoelectric (Seebeck and Nernst) response in heavily overdoped, non-superconducting LaSrCuO. In spite of the electron-like curvat…
How 'pairons' are revealed in the electronic specific heat of cuprates
Yves Noat, Alain Mauger, Minoru Nohara +2
Understanding the thermodynamic properties of high- cuprate superconductors is a key step to establish a satisfactory theory of these materials. The electronic specific heat i…
Temperature-dependent local structure of superconducting BaPdAs and SrPdAs
K. Terashima, E. Paris, L. Simonelli +12
The local structures of 122-type paradium arsenides, namely BaPdAs and SrPdAs, are examined by As K-edge extended x-ray absorption fine structure measurements to fi…