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journal article·2020-07Open access

Van der Waals Semiconductors: Infrared Permittivity of the Biaxial van der Waals Semiconductor α‐MoO3 from Near‐ and Far‐Field Correlative Studies (Adv. Mater. 29/2020)

Gonzalo Álvarez‐Pérez, Thomas G. Folland, Ion Errea, Javier Taboada‐Gutiérrez, Jiahua Duan, Javier Martín‐Sánchez, Ana I. F. Tresguerres‐Mata, Joseph R. Matson, Andrei Bylinkin, Mingze He, Weiliang Ma, Qiaoliang Bao, José Ignacio Martín, Joshua D. Caldwell, Alexey Y. Nikitin, Pablo Alonso‐González

Advanced Materials· Volume 32· Issue 29
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Source abstract

Abstract

In article number 1908176, Joshua D. Caldwell, Alexey Y. Nikitin, Pablo Alonso-González, and co-workers extract the IR permittivity of the biaxial crystal α-MoO3 by correlative far- and near-field measurements, using FTIR reflectance spectroscopy and s-SNOM polariton interferometry, thus providing both an accurate permittivity model and a novel approach to extracting dielectric functions of nanomaterials. Moreover, through density functional theory, insights into the vibrational states dictating such permittivity are revealed.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: Transition Metal Oxide Nanomaterials · Gas Sensing Nanomaterials and Sensors

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Affiliations

Department of Physics University of Oviedo Oviedo 33006 Spain

Center of Research on Nanomaterials and Nanotechnology CINN (CSIC–Universidad de Oviedo) El Entrego 33940 Spain

Department of Mechanical Engineering Vanderbilt University Nashville TN 37235 USA

Fisika Aplikatua 1 Saila University of the Basque Country (UPV/EHU) Donostia/San Sebastián 20018 Spain

Centro de Física de Materiales (CSIC‐UPV/EHU) Donostia/San Sebastián 20018 Spain

Donostia International Physics Center (DIPC) Donostia/San Sebastián 20018 Spain

CIC nanoGUNE Donostia/San Sebastián 20018 Spain

Moscow Institute of Physics and Technology Dolgoprudny 141700 Russia

Department of Materials Science and Engineering and ARC Centre of Excellence in Future Low‐Energy Electronics Technologies (FLEET) Monash University Clayton Victoria 3800 Australia

Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon‐based Functional Materials and Devices Soochow University Suzhou Jiangsu 215123 China

IKERBASQUE Basque Foundation for Science Bilbao 48013 Spain

References

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