SEARCH · Engineering Papers
Results for “SE”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Jahn-Teller driven quadrupolar ordering and spin-orbital dimer formation in GaNb 4 Se 8
Not Available
Spin fluctuations in the ultranodal superconducting state of Fe(Se,S)
Not Available
Shubnikov–de Haas oscillations from topological surface states of metallic Bi 2 Se 2.1 Te 0.9
Not Available
FeTe 0.55 Se 0.45 : A multiband superconductor in the clean and dirty limit
Not Available
Sudden gap closure across the topological phase transition in Bi 2 − x In x Se 3
Not Available
Scanning tunneling microscopy of superconducting topological surface states in Bi 2 Se 3
Not Available
Pressure-induced phase transitions in the CdCr[subscript 2]Se[subscript 4] spinel
Abstract not provided
Superconductivity and hybrid soft modes in Ti Se 2
The interplay between superconductivity and charge-density-wave (CDW) order plays a central role in the layered transition-metal dichalcogenides. 1 T -TiSe 2 forms a prime example, featuring superconducting domes on intercalation as well as under applied pressure. Here, we present high energy-resolution inelastic x-ray scattering measurements of the CDW soft phonon mode in intercalated Cu x TiSe 2 and pressurized 1 T -TiSe 2 along with detailed ab-initio calculations for the lattice dynamical properties and phonon-mediated superconductivity. We find that the intercalation-induced superconductivity can be explained by a solely phonon-mediated pairing mechanism, while this is not possible for the superconducting phase under pressure. We argue that a hybridization of phonon and exciton modes in the pairing mechanism is necessary to explain the full observed temperature-pressure-intercalation phase diagram. Finally, these results indicate that 1 T -TiSe 2 under pressure is close to the elusive state of the excitonic insulator.