Work

Observation of Weakened V—V Dimers in the Monoclinic Metallic Phase of Strained VO2

Year: 2018

Type: article

Abstract: Emergent order at mesoscopic length scales in condensed matter can provide fundamental insight into the underlying competing interactions and their relationship with the order parameter. Using spectromicroscopy, we show that mesoscopic stripe order near the metal-insulator transition (MIT) of strained VO_{2} represents periodic modulations in both crystal symmetry and V-V dimerization. Above the MIT, we unexpectedly find the long-range order of V-V dimer strength and crystal symmetry become dissociated beyond ≈200 nm, whereas the conductivity transition proceeds homogeneously in a narrow temperature range.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.121.256403

Authors: J. Laverock, V. Jovic, A. A. Zakharov, Y. R. Niu, S. Kittiwatanakul, B. Westhenry, J. W. Lu, S. A. Wolf, K. E. Smith

Institutions: Boston University, University of Bristol, University of Auckland, MacDiarmid Institute for Advanced Materials and Nanotechnology, Lund University, Chulalongkorn University, University of Virginia

Language: English

Topic: Transition Metal Oxide Nanomaterials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: U.S. Department of Energy, University of Bristol, Multidisciplinary University Research Initiative, Engineering and Physical Sciences Research Council, Army Research Office

Awards: G222768804, ELECTRONIC STRUCTURE IN LOW DIMENSIONAL AND CORRELATED SOLIDS, G4897964007, G5969795086, EPSRC Centre for Doctoral Training in Condensed Matter Physics, ELECTRONIC STRUCTURE IN QUASI-LOW DIMENSIONAL OXIDE CONDUCTORS.

OpenAlex ID: W2906150577

FWCI: 0.773

Cites: 46

Cited by: 19

Related to: 10