Study of HgBa$_2$CuO$_{4+δ}$ by Angle-Resolved Photoemission Spectroscopy

W. S. Lee; T. Yoshida; W. Meevasana; K. M. Shen; D. H. Lu; W. L. Yang; X. J. Zhou; X. Zhao; G. Yu; Y. Cho; M. Greven; Z. Hussain; Z. -X. Shen

arXiv · cond-mat/0606347

Study of HgBa$_2$CuO$_{4+δ}$ by Angle-Resolved Photoemission Spectroscopy

W. S. Lee·T. Yoshida·W. Meevasana·K. M. Shen·D. H. Lu·W. L. Yang·X. J. Zhou·X. Zhao·G. Yu·Y. Cho·M. Greven·Z. Hussain·Z. -X. Shen

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Abstract

We present the first angle-resolved photoemission measurement on the single-layer Hg-based cuprate, HgBa$_2$CuO$_{4+δ}$ (Hg1201). A quasi-particle peak in the spectrum and a kink in the band dispersion around the diagonal of the Brillouin zone are observed, whereas no structure is detected near the Brillouin zone boundary. To search for a material-dependent trend among hole-doped cuprates, including Hg1201, we use a tight-binding model to fit their Fermi surfaces. We find a positive correlation between the $T_{c,\mathrm{max}}$ and $t'/t$, consistent with theoretical predictions.

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W. S. Lee, T. Yoshida, W. Meevasana, K. M. Shen, D. H. Lu, W. L. Yang, X. J. Zhou, X. Zhao, G. Yu, Y. Cho, M. Greven, Z. Hussain, Z. -X. Shen. 2006-06-14. Study of HgBa$_2$CuO$_{4+δ}$ by Angle-Resolved Photoemission Spectroscopy. https://arxiv.org/abs/cond-mat/0606347

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