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Two-dimensional Jeff=1/2 antiferromagnetic insulator unraveled from interlayer exchange coupling in artificial perovskite iridate superlattices

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00484697" target="_blank" >RIV/68378271:_____/17:00484697 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/17:10363558

  • Result on the web

    <a href="http://dx.doi.org/10.1103/PhysRevLett.119.027204" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.119.027204</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevLett.119.027204" target="_blank" >10.1103/PhysRevLett.119.027204</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Two-dimensional Jeff=1/2 antiferromagnetic insulator unraveled from interlayer exchange coupling in artificial perovskite iridate superlattices

  • Original language description

    We report an experimental investigation of the two-dimensional Jeff ¼ 1=2 antiferromagnetic Mott insulator by varying the interlayer exchange coupling in [ðSrIrO3 Þ 1, ðSrTiO3 Þ m] (m ¼ 1, 2 and 3) superlattices. Although all samples exhibited an insulating ground state with long-range magnetic order, temperature-dependent resistivity measurements showed a stronger insulating behavior in the m ¼ 2 and m ¼ 3 samples than the m ¼ 1 sample which displayed a clear kink at the magnetic transition. This difference indicates that the blocking effect of the excessive SrTiO3 layer enhances the effective electronelectron correlation and strengthens the Mott phase. The significant reduction of the Néel temperature from 150 K for m ¼ 1 to 40 K for m ¼ 2 demonstrates that the long-range order stability in the former is boosted by a substantial interlayer exchange coupling.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review Letters

  • ISSN

    0031-9007

  • e-ISSN

  • Volume of the periodical

    119

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    6

  • Pages from-to

  • UT code for WoS article

    000405514700017

  • EID of the result in the Scopus database

    2-s2.0-85024477953