April’s LabTalks in JPCM

By Jade Holt on May 1, 2015

In April 2015, 10 more LabTalks were published showcasing the high-quality and diverse research JPCM publishes. Here are some of the highlights.

All of JPCM’s LabTalks are free to read here.

Raman spectra of a few-later phosphorene
Research into this two-dimensional layered material is receiving increasing attention of late due to its potential impact on 2D electronics. In this LabTalk, Yanqing Feng et al discuss their recent paper on few-layer phosphorene in which they study the raman spectra using first-principles. Their results may help characterize the thickness of this new material experimentally.
Based on: Feng et al 2015 J. Phys.: Condens. Matter 27 185302

Filming hot carrier dynamics in graphene
Another 2D material that often features in JPCM is the carbon-based graphene. Here, its optical properties are influenced by different metallic and semiconducting substrates to investigate their impact when fabricating photoelectric devices. The paper by Ulstrup et al is part of a wider special issue on hot carriers in graphene guest edited by C Voisin and B Placais, which features a number of papers discussing the implication of hot carriers in electronic and optoelectronic devices.
Based on: Ulstrup et al 2015 J. Phys.: Condens. Matter 27 164206

The Y2W3O12 structure.

Intriguing results of study into negative thermal expansion in Y₂W₃O₁₂
Rimmer and Dove discuss their latest results on negative thermal expansion in this Labtalk. Using Grüneisen theory and flexible models they are able to analyse the phonon spectrum of a metal-oxide framework. Their paper is free to read until March 2016.
Based on: Rimmer and Dove 2015 J. Phys.: Condens. Matter 27 185401

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