ARPES Investigations of the Electronic Structure Evolution of the Doped Ruthenate (Sr$_{1-x}$Ca$_{x})_{3}$Ru$_{2}$O$_{7}$

ORAL

Abstract

The bilayer ruthenate system (Sr$_{1-x}$Ca$_{x})_{3}$Ru$_{2}$O$_{7}$ can be grown in the full range of dopings with the end members being an antiferromagnetic ``bad metal'' (x=1) and a paramagnetic Fermi liquid displaying a metamagnetic transition under applied field (x=0). Recent transport and magnetization measurements have shown that the system displays disorder-induced unconventional quantum critical behavior near the doping level x$\sim $0.3. We present ARPES data for a range of dopings to investigate the associated electronic structure evolution.

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Authors

  • William Dunkel

    • Stanford University

  • Felix Baumberger

    • University of St. Andrews

  • Milan Allan

    • University of St. Andrews

  • Worawat Meevasana

    • Stanford University

  • Zhiqiang Mao

    • Tulane University

  • Zhi-Xun Shen

    • Stanford University