Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"charge density wave transition"”.
-
Surface studies of group IV-VI layered crystals
… for a crystal cleaved at a temperature below the charge density wave transition exhibited a 2ao x 2ao surface superlattice. The electronic band structures for TiS2e and TiS2 have been investigated by angle resolved photoemission spectroscopy. Excitation is provided by He I (21.2 eV) and He II …
-
Light scattering from tantalum diselenide
… has been carefully studied. Below a 120 K phase transition, incommensurate charge density waves appear which introduce .additional structure into the Raman spectra. The charge density waves become commensurate below a 110 K phase transition, with a consequent tripling of the size of the unit …
-
Discovery of a Pseudogap Attributed to Charge Density Wave Order at the β-β′ Phase Transition in As2Te3 and the Influence of Cu and Ge Doping on its Properties
… and driving mechanism of the β to β' phase transition of As2Te3 is investigated through primarily resistivity, optical reflectance and heat capacity measurements. From optical reflectivity we identify the formation of a pseudogap concomitant to the β-As2Te3 to β'-As2Te3 transition. Based on …
-
Electronic instabilities and the Martensitic transition in A-15 compouns
The structural transition and anomalous properties of the high temperature A-15 superconductors have been investigated from two different standpoints. The first is a Landau theory based on Gorkov's physical model of a Peierls-like charge density wave (CDW) transition involving electronic CDW order …
-
Synthesis of 1T-Tantalum (IV) Sulfide and observation of charge density wave using scanning tunneling microscopy
… A particular example is the existence of a charge density wave (CDW) in 1T-Tantalum (IV) Sulfide (1T-TaS2). A member of the transition metal dichalcogenide (TMDC) family, 1T-TaS2 exhibit a periodic modulation of electronic charge density. Unlike bulk semiconductor or metals, lattice …