NMR study of metallic strontium titanate (CROSBI ID 728166)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa
Podaci o odgovornosti
Najev, Ana ; Spaić, Marin ; Hameed, Sajna ; Greven, Martin ; Pelc, Damjan
engleski
NMR study of metallic strontium titanate
Electron-doped strontium titanate (SrTiO3) is a peculiar metal and superconductor due to extremely low densities of high-mobility carriers and the proximity to a ferroelectric quantum-critical point. In particular, the normal-state transport properties are not well understood. Transport measurements find a robust T2-dependent resistivity, as might be expected for a Fermi liquid. However, the Fermi energy is so low that Fermi-liquid theory cannot explain the observed behavior. Nuclear magnetic resonance (NMR) is a powerful local probe that has not yet been used to investigate this issue. Here we present a 47, 49Ti NMR study across the temperature-doping phase diagram of Nb- and oxygen-vacancy-doped SrTiO3. From Knight shift measurements, we gain insight into the local electronic spin susceptibility. We discuss the results within Fermi-liquid and polaronic models of metallic SrTiO3.
NMR ; strontium titanate
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Podaci o prilogu
1-11.
2022.
objavljeno
Podaci o matičnoj publikaciji
APS March Meeting 2022
Podaci o skupu
APS March Meeting 2022
predavanje
14.03.2022-18.03.2022
Chicago (IL), Sjedinjene Američke Države