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Nature Materials contents: July 2018 Volume 17 Number 7

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TABLE OF CONTENTS

July 2018 Volume 17, Issue 7

Editorial
News & Views
Letters
Articles
Amendments & Corrections
 
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Editorial

 

Hydrogen to the rescue    p565
doi:10.1038/s41563-018-0129-y

News & Views

 

Pure spin currents find the off switch    pp566 - 567
Peter Wadley
doi:10.1038/s41563-018-0125-2

Symmetry and magnetism allied    pp567 - 568
Manfred Fiebig
doi:10.1038/s41563-018-0113-6

Out of step with time    p569
Philip Ball
doi:10.1038/s41563-018-0127-0

Reducing localization    pp570 - 571
A. Alec Talin & François Léonard
doi:10.1038/s41563-018-0103-8

Mechanics-guided developmental fate patterning    pp571 - 572
Mukul Tewary & Peter W. Zandstra
doi:10.1038/s41563-018-0121-6

Biomaterials driving repair after stroke    pp573 - 574
Anup Tuladhar & Molly S. Shoichet
doi:10.1038/s41563-018-0124-3

Still plenty to explore    pp574 - 576
Brian Gleeson
doi:10.1038/s41563-018-0119-0

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Letters

 

Spin colossal magnetoresistance in an antiferromagnetic insulator    pp577 - 580
Zhiyong Qiu, Dazhi Hou, Joseph Barker, Kei Yamamoto, Olena Gomonay et al.
doi:10.1038/s41563-018-0087-4

In the antiferromagnetic insulator Cr2O3 a strong modulation of the spin conduction with magnetic field near the Néel temperature is measured. By analogy with its charge counterpart, this effect is termed spin colossal magnetoresistance.

 

Observation of magnetic vortex pairs at room temperature in a planar α-Fe2O3/Co heterostructure    pp581 - 585
F. P. Chmiel, N. Waterfield Price, R. D. Johnson, A. D. Lamirand, J. Schad et al.
doi:10.1038/s41563-018-0101-x

Magnetic vortices formed in antiferromagnetic haematite and imprinted on a Co ferromagnetic over-layer have been observed using X-ray magnetic linear and circular dichroism photoemission electron microscopy. These vortex pairs can be manipulated by the application of magnetic fields.

 

Terahertz-light quantum tuning of a metastable emergent phase hidden by superconductivity    pp586 - 591
X. Yang, C. Vaswani, C. Sundahl, M. Mootz, P. Gagel et al.
doi:10.1038/s41563-018-0096-3

THz pump–probe experiments of superconducting Nb3Sn reveal that a metastable phase is induced for excitation fields around 250?kV?cm-1.

 

Electrifying model catalysts for understanding electrocatalytic reactions in liquid electrolytes    pp592 - 598
Firas Faisal, Corinna Stumm, Manon Bertram, Fabian Waidhas, Yaroslava Lykhach et al.
doi:10.1038/s41563-018-0088-3

Fundamental understanding of electrocatalysis is key to a transition to renewable energy systems. A strategy to 'electrify' complex oxide-based model catalysts is now proposed to explore electrocatalytic reactions in liquid electrolytes.

 

Homochiral porous nanosheets for enantiomer sieving    pp599 - 604
Bo Sun, Yongju Kim, Yanqiu Wang, Huaxin Wang, Jehan Kim et al.
doi:10.1038/s41563-018-0107-4

By using stacked macrocycle dimers, a 2D nanosheet self-assembles that exclusively captures a single enantiomer, and can release it by external stimulus via salt addition.

 

Articles

 

Significant Dzyaloshinskii–Moriya interaction at graphene–ferromagnet interfaces due to the Rashba effect    pp605 - 609
Hongxin Yang, Gong Chen, Alexandre A. C. Cotta, Alpha T. N'Diaye, Sergey A. Nikolaev et al.
doi:10.1038/s41563-018-0079-4

Authors investigate graphene/cobalt and graphene/nickel interfaces, and observe a non-zero Dzyaloshinskii–Moriya interaction that they attribute to the Rashba effect; calculations suggest the effect can be enhanced in van der Waals heterostructures.

 

Interplay of water and reactive elements in oxidation of alumina-forming alloys    pp610 - 617
N. Mortazavi, C. Geers, M. Esmaily, V. Babic, M. Sattari et al.
doi:10.1038/s41563-018-0105-6

The crucial interaction between reactive elements and water vapour during the oxide scale growth of alumina-forming alloys is revealed, providing insights to improve corrosion resistance of high-temperature alloys.

 

An autonomously electrically self-healing liquid metal–elastomer composite for robust soft-matter robotics and electronics    pp618 - 624
Eric J. Markvicka, Michael D. Bartlett, Xiaonan Huang & Carmel Majidi
doi:10.1038/s41563-018-0084-7

Liquid metal droplets dispersed in an elastomer can form conducting paths when the composite is exposed to extreme mechanical pressure. This ability is used to realize flexible circuits that autonomously electrically self-heal after puncturing or tearing.

 

Electron delocalization and charge mobility as a function of reduction in a metal–organic framework    pp625 - 632
Michael L. Aubrey, Brian M. Wiers, Sean C. Andrews, Tsuneaki Sakurai, Sebastian E. Reyes-Lillo et al.
doi:10.1038/s41563-018-0098-1

A conducting metal–organic framework with charge delocalization by reductive potassium insertion is demonstrated. Integration into a field-effect transistor shows similar mobilities to semiconductors, with a mobility estimated to be at least 0.84 cm2 V–1 s–1.

 

Mechanics-guided embryonic patterning of neuroectoderm tissue from human pluripotent stem cells    pp633 - 641
Xufeng Xue, Yubing Sun, Agnes M. Resto-Irizarry, Ye Yuan, Koh Meng Aw Yong et al.
doi:10.1038/s41563-018-0082-9

Mechanical cues play critical roles in embryonic development. A micropatterned neuroectoderm developmental model based on human pluripotent stem cells now reveals how morophogenetic signals such as cell shape and contractility regulate neural tissue development.

 

Dual-function injectable angiogenic biomaterial for the repair of brain tissue following stroke    pp642 - 651
Lina R. Nih, Shiva Gojgini, S. Thomas Carmichael & Tatiana Segura
doi:10.1038/s41563-018-0083-8

Stimulation of angiogenesis after stroke is not always an effective therapy. An injectable hydrogel with pro-angiogenic and immune-modulating factors is now shown to support blood vessel, axonal and functional recovery following stroke.

 

Amendments & Corrections

 

Author Correction: Room-temperature ductile inorganic semiconductor    p652
Xun Shi, Hongyi Chen, Feng Hao, Ruiheng Liu, Tuo Wang et al.
doi:10.1038/s41563-018-0111-8

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