Print Email Facebook Twitter Spin-Orbit Semimetal SrIrO3 in the Two-Dimensional Limit Title Spin-Orbit Semimetal SrIrO3 in the Two-Dimensional Limit Author Groenendijk, D.J. (TU Delft QN/Caviglia Lab; Kavli institute of nanoscience Delft) Autieri, C. (Consiglio Nazionale Delle Ricerche) Girovský, J. (TU Delft QN/Otte Lab; Kavli institute of nanoscience Delft) Martinez Velarte, M.C. (TU Delft QN/Otte Lab; Kavli institute of nanoscience Delft) Manca, N. (TU Delft QN/Caviglia Lab; Kavli institute of nanoscience Delft) Mattoni, G. (TU Delft QN/Caviglia Lab; Kavli institute of nanoscience Delft) RinconVieiraLugarinhoMonteiro, A.M. (TU Delft QN/Caviglia Lab; Kavli institute of nanoscience Delft) Gauquelin, N. (Universiteit Antwerpen) Verbeeck, J (Universiteit Antwerpen) Otte, A. F. (TU Delft QN/Otte Lab; Kavli institute of nanoscience Delft) Gabay, M. (Université Paris-Saclay) Picozzi, S. (Consiglio Nazionale Delle Ricerche) Caviglia, A. (TU Delft QN/Caviglia Lab; Kavli institute of nanoscience Delft) Date 2017-12-22 Abstract We investigate the thickness-dependent electronic properties of ultrathin SrIrO3 and discover a transition from a semimetallic to a correlated insulating state below 4 unit cells. Low-temperature magnetoconductance measurements show that spin fluctuations in the semimetallic state are significantly enhanced while approaching the transition point. The electronic properties are further studied by scanning tunneling spectroscopy, showing that 4 unit cell SrIrO3 is on the verge of a gap opening. Our density functional theory calculations reproduce the critical thickness of the transition and show that the opening of a gap in ultrathin SrIrO3 requires antiferromagnetic order. To reference this document use: http://resolver.tudelft.nl/uuid:1cff469b-90fe-41bf-b8c6-c1c36db67be2 DOI https://doi.org/10.1103/PhysRevLett.119.256403 ISSN 0031-9007 Source Physical Review Letters, 119 (25) Part of collection Institutional Repository Document type journal article Rights © 2017 D.J. Groenendijk, C. Autieri, J. Girovský, M.C. Martinez Velarte, N. Manca, G. Mattoni, A.M. RinconVieiraLugarinhoMonteiro, N. Gauquelin, J Verbeeck, A. F. Otte, M. Gabay, S. Picozzi, A. Caviglia Files PDF PhysRevLett.119.256403.pdf 582.26 KB Close viewer /islandora/object/uuid:1cff469b-90fe-41bf-b8c6-c1c36db67be2/datastream/OBJ/view