UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Light control of the nanoscale phase separation in heteroepitaxial nickelates

Mattoni, G; Manca, N; Hadjimichael, M; Zubko, P; van der Torren, AJH; Yin, C; Catalano, S; ... Caviglia, AD; + view all (2018) Light control of the nanoscale phase separation in heteroepitaxial nickelates. Physical Review Materials , 2 (8) , Article 085002. 10.1103/PhysRevMaterials.2.085002. Green open access

[img]
Preview
Text
PhysRevMaterials.2.pdf - ["content_typename_Published version" not defined]

Download (793kB) | Preview

Abstract

Strongly correlated materials show unique solid-state phase transitions with rich nanoscale phenomenology that can be controlled by external stimuli. Particularly interesting is the case of light–matter interaction in the proximity of the metal–insulator transition of heteroepitaxial nickelates. In this work, we use near-infrared laser light in the high-intensity excitation regime to manipulate the nanoscale phase separation in NdNiO3. By tuning the laser intensity, we can reproducibly set the coverage of insulating nanodomains, which we image by photoemission electron microscopy, thus semipermanently configuring the material state. With the aid of transport measurements and finite element simulations, we identify two different timescales of thermal dynamics in the light–matter interaction: a steady-state and a fast transient local heating. These results open interesting perspectives for locally manipulating and reconfiguring electronic order at the nanoscale by optical means.

Type: Article
Title: Light control of the nanoscale phase separation in heteroepitaxial nickelates
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevMaterials.2.085002
Publisher version: http://dx.doi.org/10.1103/PhysRevMaterials.2.08500...
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Technology, Materials Science, Multidisciplinary, Materials Science, METAL-INSULATOR-TRANSITION, CHARGE-TRANSFER, ELECTRONIC-PROPERTIES, PRESSURE-DEPENDENCE, RARE-EARTH, NDNIO3, SUPERLATTICES, NDGAO3, STATE, FILMS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/10054975
Downloads since deposit
69Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item