English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Unusual transport properties deviating from the Fermi liquid are observed inruthenates near a magnetic quantum-critical point (QCP). To understand theelectronic properties of the ruthenates near and away from an antiferromagnetic(AF) QCP, I study the electronic structure and magnetic and transportproperties for the $t_{2g}$-orbital Hubbard model on a square lattice influctuation-exchange approximation including Maki-Thompson (MT) current vertexcorrection (CVC). The results away from the AF QCP reproduce severalexperimental results of Sr$_{2}$RuO$_{4}$ qualitatively and provide newmechanisms about the enhancement of spin fluctuation at$Q_{\textrm{IC-AF}}\approx (0.66\pi,0.66\pi)$, larger mass enhancement of the$d_{xy}$ orbital than that of the $d_{xz/yz}$ orbital, and nonmonotonictemperature dependence of the Hall coefficient. Also, the results near the AFQCP explain the $T$-linear inplane resistivity inSr$_{2}$Ru$_{0.075}$Ti$_{0.025}$O$_{4}$ and give an experimental test on theobtained temperature dependence of the Hall coefficient. I reveal spatialcorrelation including the self-energy of electrons beyond mean-fieldapproximations is essential to determine the electronic properties of theruthenates. I also show several ubiquitous transport properties near an AF QCPand characteristic transport properties of a multiorbital system by comparisonwith results of a single-orbital system near an AF QCP.

Orbital-cooperative spin fluctuation and orbital-dependent transport in ruthenates