Nature Materials contents: February 2017 Volume 16 Number 2 pp 155 - 273

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TABLE OF CONTENTS February 2017 Volume 16, Issue 2 Editorial News and Views Perspective Reviews Letters Articles Corrigendum Advertisement   Nature Reviews Chemistry is now live! Nature Reviews Chemistry provides both an introduction to chemists embarking on a new topic of investigation and thought-provoking, in-depth sections for the expert. The first issue is now published and is free to view online for a limited time.  Read the first issue Subscribe   Facebook   RSS   Recommend to library   Twitter   Focus Top 2D materials beyond graphene Transition metal dichalcogenides and Xenes have been recently added to the family of 2D materials. This Focus issue highlights the intriguing fundamental properties that these 2D materials and their combination in van der Waals heterostructures exhibit, as well as potential applications. 2D materials beyond graphene Editorial Top As thin as it gets   p155 doi:10.1038/nmat4854 As the family of 2D materials expands to include transition metal dichalcogenides and Xenes, novel fundamental properties and applications come to light. News and Views Top Superconductivity: Controlling magnetism   pp156 - 157 Alexander A. Golubov and Mikhail Yu. Kupriyanov doi:10.1038/nmat4847 Manipulation of the magnetic state in spin valve structures by superconductivity has now been achieved, opening a new route for the development of ultra-fast cryogenic memories. See also: Letter by Zhu et al. Organic electronics: One model to rule them all   pp157 - 159 Jeffrey J. Urban doi:10.1038/nmat4790 A single transport function has been developed to describe the temperature and energy dependence of charge transport in insulating, semiconducting and metallic polymers. See also: Article by Dongmin Kang & Jeffrey Snyder Material Witness: Old gold — or new?   p159 Philip Ball doi:10.1038/nmat4853 X-ray imaging: Reaching the third dimension   pp160 - 161 Ian Robinson and Xiaojing Huang doi:10.1038/nmat4845 X-ray imaging in three dimensions is now possible from a set of 2D coherent Bragg diffraction patterns. This approach overcomes the necessity of having to rotate the sample for a 3D reconstruction. See also: Article by Hruszkewycz et al. Supercapacitors: Porous materials get energized   pp161 - 162 Alexandru Vlad and Andrea Balducci doi:10.1038/nmat4851 By making use of a semiconducting metal–organic graphene analogue, researchers propose a new generation of supercapacitors with potential as tunable molecular materials for energy. See also: Letter by Sheberla et al. Nature Materials JOBS of the week PhD Student University of Geneva - Faculty of Sciences PhD Studentships Ecole Polytechnique More Science jobs from Nature Materials EVENT AEM2017: 2nd International Conference on Advanced Energy Materials 11.09.17 Guildford, UK More science events from Perspective Top Buckled two-dimensional Xene sheets   pp163 - 169 Alessandro Molle, Joshua Goldberger, Michel Houssa, Yong Xu, Shou-Cheng Zhang et al. doi:10.1038/nmat4802 The current state-of-the-art and possible future developments on two-dimensional silicene, germanene, and stanene sheets (called 2D-Xenes), and their ligand-functionalized derivatives (Xanes), are discussed. Reviews Top Mixed-dimensional van der Waals heterostructures   pp170 - 181 Deep Jariwala, Tobin J. Marks and Mark C. Hersam doi:10.1038/nmat4703 This Review discusses the different, state-of-the-art applications of heterostructures containing at least one layer of a two-dimensional (2D) material, combined with 0D, 1D and 3D nano-objects. Polaritons in layered two-dimensional materials   pp182 - 194 Tony Low, Andrey Chaves, Joshua D. Caldwell, Anshuman Kumar, Nicholas X. Fang et al. doi:10.1038/nmat4792 This Review discusses the properties of polariton modes (plasmon, phonon and exciton) in graphene, hexagonal boron nitride and transition metal dichalcogenides for applications across the terahertz to visible spectrum. Letters Top Superconducting exchange coupling between ferromagnets   pp195 - 199 Yi Zhu, Avradeep Pal, Mark G. Blamire and Zoe H. Barber doi:10.1038/nmat4753 The superconductivity is found to control the magnetic configuration in GdN/Nb/GdN spin valves as a result of an antiferromagnetic exchange interaction arising from the coupling between the superconducting condensation energy and the magnetic state. See also: News and Views by Golubov & Kupriyanov A charge density wave-like instability in a doped spin-orbit-assisted weak Mott insulator   pp200 - 203 H. Chu, L. Zhao, A. de la Torre, T. Hogan, S. D. Wilson et al. doi:10.1038/nmat4836 TSr3Ir2O7 is shown to realize a weak Mott state with no cuprate analogue and to exhibit, when electron doped, a charge density wave-like Fermi surface instability with unconventional and possibly short-ranged nature. Thermoelectric detection and imaging of propagating graphene plasmons   pp204 - 207 Mark B. Lundeberg, Yuanda Gao, Achim Woessner, Cheng Tan, Pablo Alonso-González et al. doi:10.1038/nmat4755 A device is presented that can detect mid-infrared plasmons in graphene encapsulated by hexagonal boron nitride via the thermoelectric effect; the natural decay product of the plasmons (electronic heat) is converted into a measurable voltage signal. Observation and coherent control of interface-induced electronic resonances in a field-effect transistor   pp208 - 213 J. O. Tenorio-Pearl, E. D. Herbschleb, S. Fleming, C. Creatore, S. Oda et al. doi:10.1038/nmat4754 The electrical control and readout of single two-level state defects in a defective oxide film grown directly on the channel of a thin-film FET allow for the extraction of individual long relaxation times. Quasicrystalline nanocrystal superlattice with partial matching rules   pp214 - 219 Xingchen Ye, Jun Chen, M. Eric Irrgang, Michael Engel, Angang Dong et al. doi:10.1038/nmat4759 The complex 3D structure of a quasicrystalline binary nanocrystal superlattice has been resolved by electron microscopy and tomography. Conductive MOF electrodes for stable supercapacitors with high areal capacitance   pp220 - 224 Dennis Sheberla, John C. Bachman, Joseph S. Elias, Cheng-Jun Sun, Yang Shao-Horn et al. doi:10.1038/nmat4766 Using MOFs as active electrodes in electrochemical double layer capacitors has so far proved difficult. An electrically conductive MOF used as an electrode is now shown to exhibit electrochemical performance similar to most carbon-based materials. See also: News and Views by Vlad & Balducci Understanding trends in C–H bond activation in heterogeneous catalysis   pp225 - 229 Allegra A. Latimer, Ambarish R. Kulkarni, Hassan Aljama, Joseph H. Montoya, Jong Suk Yoo et al. doi:10.1038/nmat4760 A universal descriptor for the prediction of C–H bond activation barriers has been established, and combined with a thermodynamic analysis of methane activation, to provide design rules for various types of heterogeneous catalysts. Single-platelet nanomechanics measured by high-throughput cytometry   pp230 - 235 David R. Myers, Yongzhi Qiu, Meredith E. Fay, Michael Tennenbaum, Daniel Chester et al. doi:10.1038/nmat4772 A high-throughput hydrogel-based platelet-contraction cytometer is able to quantify single-platelet contraction forces and may function as a clinical diagnostic biophysical biomarker. Deterministic encapsulation of single cells in thin tunable microgels for niche modelling and therapeutic delivery   pp236 - 243 Angelo S. Mao, Jae-Won Shin, Stefanie Utech, Huanan Wang, Oktay Uzun et al. doi:10.1038/nmat4781 Single cells encapsulated in a layer of alginate and injected intravenously delay clearance kinetics and sustain donor-derived soluble factors in vivo. Advertisement Nature Biomedical Engineering - NOW LIVE The first issue of Nature Biomedical Engineering is now live and available for free.  Click here to access the issue. Remember to follow us on Twitter @NatBME or sign up to receive the e-alert.   Articles Top High-resolution three-dimensional structural microscopy by single-angle Bragg ptychography   pp244 - 251 S. O. Hruszkewycz, M. Allain, M. V. Holt, C. E. Murray, J. R. Holt et al. doi:10.1038/nmat4798 The 3D structure of a diffracting volume can be reconstructed from a set of 2D coherent Bragg diffraction patterns. The overdetermination afforded by ptychography allows the deconvolution of the third dimension, without having to rotate the sample. See also: News and Views by Robinson & Huang Charge-transport model for conducting polymers   pp252 - 257 Stephen Dongmin Kang and G. Jeffrey Snyder doi:10.1038/nmat4784 A generalized charge-transport model is reported that is able to describe the thermopower–conductivity relation at various temperatures in several semiconducting polymers, suggesting a rethinking of conduction mechanisms in these materials. See also: News and Views by Urban Hybrid organic–inorganic inks flatten the energy landscape in colloidal quantum dot solids   pp258 - 263 Mengxia Liu, Oleksandr Voznyy, Randy Sabatini, F. Pelayo García de Arquer, Rahim Munir et al. doi:10.1038/nmat4800 An improved ligand-exchange process allows the realization of solution-deposited films of quantum dots with reduced energetic disorder and, as a result, solar cells with improved open-circuit voltage, charge-carrier transport and stability. Nitroaromatic detection and infrared communication from wild-type plants using plant nanobionics   pp264 - 272 Min Hao Wong, Juan P. Giraldo, Seon-Yeong Kwak, Volodymyr B. Koman, Rosalie Sinclair et al. doi:10.1038/nmat4771 Plants can be engineered to serve as self-powered pre-concentrators and autosamplers of analytes in ambient groundwater and as infrared communication platforms that can send information to a smartphone. Corrigendum Top Corrigendum: Real-space imaging of interfacial water with submolecular resolution   p273 Jing Guo, Xiangzhi Meng, Ji Chen, Jinbo Peng, Jiming Sheng et al. doi:10.1038/nmat4844 Top Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com More Nature Events

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