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Nature Nanotechnology

The MultiHarp 150 is PicoQuant's latest generation of bench-top event timers with USB 3.0 interface. 

Featuring 4 or 8 detector channels, outstanding data throughput and ultra short dead times, it is ideally suited for photon coincidence measurements in quantum optics. It is world's first commercial event timer, which is prepared to be used in a White Rabbit timing network.

July 2018 Volume 13, Issue 7

Research Highlights
News & Views
Amendments & Corrections
Read our new special report on the nature of spacetime, the origin of life, the source of consciousness, and other fundamental questions in science.
Produced with support from: The Kavli Prize 


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Factors that make an impact    p525



Listening    pp526 - 527
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From an idea to a technology    pp528 - 530
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Research Highlights


Longer wires conduct better    p531
Benjamin Heinrich

Setting up boundaries    p531
Chiara Pastore

Plastic not so fantastic    p531
Fabio Pulizzi

Low-dimensional perovskites    p531
Olga Bubnova

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News & Views


Electric switching of magnetism in 2D    p532
Kenneth S. Burch

Strong bundles based on carbon nanotubes    pp533 - 534
Rodney S. Ruoff

Taking upconversion to lase in microcavity    pp534 - 536
Gungun Lin & Dayong Jin

Getting to the brain    p536
Maria Giuseppina Baratta



Advanced tools for the safety assessment of nanomaterials    pp537 - 543
Bengt Fadeel, Lucian Farcal, Barry Hardy, Socorro Vázquez-Campos, Danail Hristozov et al.

New tools and approaches in hazard and risk assessment of engineered nanomaterials may pave the way to safe nanomaterial-driven innovations.




Electrical control of 2D magnetism in bilayer CrI3    pp544 - 548
Bevin Huang, Genevieve Clark, Dahlia R. Klein, David MacNeill, Efrén Navarro-Moratalla et al.

Electrical control of magnetism in a bilayer of CrI3 enables the realization of an electrically driven magnetic phase transition and the observation of the magneto-optical Kerr effect in 2D magnets.


Controlling magnetism in 2D CrI3 by electrostatic doping    pp549 - 553
Shengwei Jiang, Lizhong Li, Zefang Wang, Kin Fai Mak & Jie Shan

Electrostatic doping in vertical van der Waals CrI3–graphene heterostructures provides means to control the magnetic properties of monolayer and bilayer CrI3.


Electric-field control of magnetism in a few-layered van der Waals ferromagnetic semiconductor    pp554 - 559
Zhi Wang, Tongyao Zhang, Mei Ding, Baojuan Dong, Yanxu Li et al.

Few-layer semiconducting Cr2Ge2Te6 shows bipolar gate-tuned magnetism below its ferromagnetic Curie temperature.


Switchable geometric frustration in an artificial-spin-ice–superconductor heterosystem    pp560 - 565
Yong-Lei Wang, Xiaoyu Ma, Jing Xu, Zhi-Li Xiao, Alexey Snezhko et al.

A superconducting thin film placed underneath a reconfigurable artificial-spin-ice structure in situ allows controllable geometric frustration with high degeneracy to be achieved.


Band structure engineering of 2D materials using patterned dielectric superlattices    pp566 - 571
Carlos Forsythe, Xiaodong Zhou, Kenji Watanabe, Takashi Taniguchi, Abhay Pasupathy et al.

A new superlattice fabrication process on 2D material heterostructures enables the observation of replica Dirac cones in graphene as well as Hofstadter's fractal magnetic spectrum under triangular and square superlattice symmetries.


Continuous-wave upconverting nanoparticle microlasers    pp572 - 577
Angel Fernandez-Bravo, Kaiyuan Yao, Edward S. Barnard, Nicholas J. Borys, Elizabeth S. Levy et al.

Energy-looping excitation in lanthanide-doped upconverting nanoparticles enables low-threshold continuous-wave lasing in stand-alone microcavities.


Single entity resolution valving of nanoscopic species in liquids    pp578 - 582
Patric Eberle, Christian Höller, Philipp Müller, Maarit Suomalainen, Urs F. Greber et al.

A switchable electrokinetic nanovalving mechanism is capable of isolating a wide variety of single nanoscopic entities, down to single macromolecules, from an ensemble, and guiding, confining, releasing and sorting them in a broad range of ionic salt concentrations, up to biological buffer levels.




Broadband, electrically tunable third-harmonic generation in graphene    pp583 - 588
Giancarlo Soavi, Gang Wang, Habib Rostami, David G. Purdie, Domenico De Fazio et al.

Gate tunable and ultrabroadband third-harmonic generation can be achieved in graphene, paving the way for electrically tunable broadband frequency converters for applications in optical communications and signal processing.


Carbon nanotube bundles with tensile strength over 80 GPa    pp589 - 595
Yunxiang Bai, Rufan Zhang, Xuan Ye, Zhenxing Zhu, Huanhuan Xie et al.

Ultralong defect-free and well-aligned carbon nanotube bundles exhibit the highest tensile strength among known strong fibres.


A scalable multi-photon coincidence detector based on superconducting nanowires    pp596 - 601
Di Zhu, Qing-Yuan Zhao, Hyeongrak Choi, Tsung-Ju Lu, Andrew E. Dane et al.

Superconducting nanowires can be engineered to realize scalable coincidence detectors of single photons.


Exfoliation of a non-van der Waals material from iron ore hematite    pp602 - 609
Aravind Puthirath Balan, Sruthi Radhakrishnan, Cristiano F. Woellner, Shyam K. Sinha, Liangzi Deng et al.

A new non-van der Waals 2D material hematene, exfoliated from natural iron ore hematite, shows ferromagnetic ordering and enhanced photocatalytic activity.


Full control of ligand positioning reveals spatial thresholds for T cell receptor triggering    pp610 - 617
Haogang Cai, James Muller, David Depoil, Viveka Mayya, Michael P. Sheetz et al.

Using a nanofabricated array platform to precisely control ligand organization at the single-molecule level, the authors illuminate the role of geometry in T cell receptor signalling.


Amendments & Corrections


Publisher Correction: Direct imaging of the electron liquid at oxide interfaces    p618
Kyung Song, Sangwoo Ryu, Hyungwoo Lee, Tula R. Paudel, Christoph T. Koch et al.

Publisher Correction: Nanobiophotonics: Nature-inspired sensors    p618
Wolfgang Fink

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