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Emergent quasi-two-...
Emergent quasi-two-dimensional metallic state derived from the Mott-insulator framework
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- Chiang, P. C. (author)
- National Yang Ming Chiao Tung University
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- Lin, S. C. (author)
- National Yang Ming Chiao Tung University
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- Chiang, C. Y. (author)
- National Synchrotron Radiation Research Center Taiwan
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- Ku, C. S. (author)
- National Synchrotron Radiation Research Center Taiwan
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- Huang, S. W. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Paul Scherrer Institute
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- Lee, J. M. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Chuang, Y. D. (author)
- Advanced Light Source, Berkeley
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- Lin, H. J. (author)
- National Synchrotron Radiation Research Center Taiwan
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- Liao, Y. F. (author)
- National Synchrotron Radiation Research Center Taiwan
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- Cheng, C. M. (author)
- National Sun Yat-sen University,National Synchrotron Radiation Research Center Taiwan
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- Haw, S. C. (author)
- National Synchrotron Radiation Research Center Taiwan
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- Chen, J. M. (author)
- National Synchrotron Radiation Research Center Taiwan
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Chu, Y. H. (author)
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- Do, T. H. (author)
- National Yang Ming Chiao Tung University
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- Luo, C. W. (author)
- National Synchrotron Radiation Research Center Taiwan
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Juang, J. Y. (author)
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Wu, K. H. (author)
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- Chang, Y. W. (author)
- National Cheng Kung University
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- Yang, J. C. (author)
- National Cheng Kung University
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- Lin, J. Y. (author)
- National Yang Ming Chiao Tung University
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Physical Review B. - 2469-9950. ; 107:7
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Abstract
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- Recent quasi-two-dimensional (quasi-2D) systems with judicious exploitation of the atomic monolayer or few-layer architecture exhibit unprecedented physical properties that challenge the conventional wisdom on condensed matter physics. Here we show that the infinite layer SrCuO2 (SCO), a topical cuprate Mott insulator in bulk form, can manifest an unexpected metallic state in the quasi-2D limit when SCO is grown on TiO2-terminated SrTiO3 (STO) substrates. The sheet resistance does not conform to Landau's Fermi liquid paradigm. Hard x-ray core-level photoemission spectra demonstrate a definitive Fermi level that resembles the hole doped metal. Soft x-ray absorption spectroscopy also reveals features analogous to those of a hole doped Mott insulator. Based on these results, we conclude that the hole doping does not occur at the interfaces between SCO and STO; instead, it comes from the transient layers between the chain-type and the planar-type structures within the SCO slab. The present work reveals a metallic state in the infinite layer SCO and invites further examination to elucidate the spatial extent of this state.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Chiang, P. C.
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Lin, S. C.
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Chiang, C. Y.
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Ku, C. S.
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Huang, S. W.
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Lee, J. M.
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show more...
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Chuang, Y. D.
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Lin, H. J.
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Liao, Y. F.
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Cheng, C. M.
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Haw, S. C.
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Chen, J. M.
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Chu, Y. H.
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Do, T. H.
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Luo, C. W.
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Juang, J. Y.
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Wu, K. H.
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Chang, Y. W.
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Yang, J. C.
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Lin, J. Y.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Physical Review ...
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Lund University