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journal article·2023-05-01Open access

Novel supercell compounds of layered Bi–Rh–O with p-type metallic conduction materialized as a thin film form

M. Ohno, T. C. Fujita, Y. Masutake, H. Kumigashira, M. Kawasaki

APL Materials· Volume 11· Issue 5
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Source abstract

Abstract

Layered oxides have been intensively studied due to their high degree of freedom in designing various electromagnetic properties and functionalities. While Bi-based layered supercell (LSC) compounds [BinOn+δ]-[MO2] (M = Mn, Mn/Al, Mn/Fe, or Mn/Ni; n = 2, 3) are a group of prospective candidates, all of the reported compounds are insulators. Here, we report on the synthesis of two novel metallic LSC compounds [BinOn+δ]-[RhO2] (n = 2, 3) by pulsed laser deposition and subsequent annealing. With tuning the thickness of the sublattice from Bi2O2+δ to Bi3O3+δ, a dimensionality-dependent electrical transport is revealed from a conventional metallic transport in n = 2 to a localized transport in n = 3. Our successful growth will be an important step for further exploring novel layered oxide compounds.
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Research context

Materials processing

OpenAlex topics: Multiferroics and related materials · Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), The University of Tokyo 1 , Tokyo 113-8656, Japan

Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK) 2 , Tsukuba 305-0801, Japan

Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University 3 , Sendai 980-8577, Japan

RIKEN Center for Emergent Matter Science (CEMS) 4 , Wako 351-0198, Japan

Funding

Japan Society for the Promotion of Science · Murata Science Foundation · Mizuho Foundation for the Promotion of Sciences · Iketani Science and Technology Foundation · Mitsubishi Foundation · Kazuchika Okura Memorial Foundation

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