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| | | 29 November 2011 | | | Featured image: | |  | | | Rahnejat et al. study the charge density waves occurring in the graphene sheets of superconducting CaC6. | | | | | | | | | Latest Articles | View all Articles | | | | | Three-dimensional high-resolution quantitative microscopy of extended crystals | | | P. Godard, G. Carbone, M. Allain, F. Mastropietro, G. Chen, L. Capello, A. Diaz, T.H. Metzger, J. Stangl and V. Chamard | | | X-ray ptychography has been used to extend the field of view in high-resolution quantitative imaging. Godard et al. develop Bragg-mode ptychography to reconstruct, in three dimensions, a crystalline specimen that is too large to be studied as a single object with a coherence-limited X-ray beam. | | | 29 Nov | Nat Commun 2:568 doi:10.1038/ncomms1569 (2011) | | | Physical sciences Materials science Nanotechnology | | | Abstract | Full Text | PDF (827 kB) |
| Concurrent transition of ferroelectric and magnetic ordering near room temperature | | | Kyung-Tae Ko, Min Hwa Jung, Qing He, Jin Hong Lee, Chang Su Woo, Kanghyun Chu, Jan Seidel, Byung-Gu Jeon, Yoon Seok Oh, Kee Hoon Kim, Wen-I Liang, Hsiang-Jung Chen, Ying-Hao Chu, Yoon Hee Jeong, Ramamoorthy Ramesh, Jae-Hoon Park, Chan-Ho Yang | | | Magnetoelectric materials combine ferroelectric and magnetic properties through a coupling of the spin and lattice degrees of freedom. Here, magnetoelectric bismuth ferrite is found to simultaneously undergo both a magnetic and a ferroelectric transition at the same temperature. | | | 29 Nov | Nat Commun 2:567 doi:10.1038/ncomms1576 (2011) | | Physical sciences Applied physics Condensed matter
Materials science | | | | Abstract | Full Text | PDF (1,700 kB) |
Supplementary Information |
| Integrated photonic quantum gates for polarization qubits OPEN | | | Andrea Crespi, Roberta Ramponi, Roberto Osellame, Linda Sansoni, Irene Bongioanni, Fabio Sciarrino, Giuseppe Vallone and Paolo Mataloni | | | As quantum information processing continues to develop apace, the need for integrated photonic devices becomes ever greater for both fundamental measurements and technological applications. To this end, Crespi et al. demonstrate a high-fidelity photonic controlled-NOT gate on a glass chip. | | | 29 Nov | Nat Commun 2:566 doi:10.1038/ncomms1570 (2011) | | | Physical sciences Optical physics | | | | | Abstract | Full Text | PDF (977 kB) |
| Global kinomic and phospho-proteomic analyses of the human malaria parasite Plasmodium falciparum OPEN | | | Lev Solyakov, Jean Halbert, Mahmood M. Alam, Jean-Philippe Semblat, Dominique Dorin-Semblat, Luc Reininger, Andrew R. Bottrill, Sharad Mistry, Abdirhaman Abdi, Clare Fennell, Zoe Holland, Claudia Demarta, Yvan Bouza, Audrey Sicard, Marie-Paule Nivez, Sylvain Eschenlauer, Tenzing Lama, Divya Catherine Thomas, Pushkar Sharma, Shruti Agarwal, Selina Kern, Gabriele Pradel, Michele Graciotti, Andrew B. Tobin and Christian Doerig | | | New approaches are required to combat Plasmodium falciparum infection. In this proteome-wide study, 1305 phosphorylation sites are identified and 36 kinases are shown to have crucial roles in parasite survival, providing new insights into parasite biology and potential new drug targets for anti-malarial chemotherapy. | | | 29 Nov | Nat Commun 2:565 doi:10.1038/ncomms1558 (2011) | | | Biological sciences Biochemistry | | | Chemical biology Medical research | | | Microbiology | | Abstract | Full Text | PDF (1,062 kB) |
Supplementary Information |
| Sauropod dinosaur osteoderms from the Late Cretaceous of Madagascar | | | Kristina Curry Rogers, Michael D'Emic, Raymond Rogers, Matthew Vickaryous and Amanda Cagan | | | Osteoderms are bones embedded within the dermis and are common in reptiles. Here, two osteoderms from the sauropod dinosaur Rapetosaurus indicate that the largest osteoderm known has an internal cavity equivalent to half its total volume and may have functioned as a mineral reserve in harsh environmental conditions. | | | 29 Nov | Nat Commun 2:564 doi:10.1038/ncomms1578 (2011) | | | Biological sciences Geology and geophysics | | | Palaeontology | | Abstract | Full Text | PDF (586 kB) |
Supplementary Information |
| High pressure partially ionic phase of water ice | | | Yanchao Wang, Hanyu Liu, Jian Lv, Li Zhu, Hui Wang and Yanming Ma | | | Dissociation of ice into an ionic solid is rare due to the high energy cost of proton transfer. In this study, structure search simulation is used to predict the formation of a partially ionic phase in ice at low temperature and high pressure, which consists of coupled alternate layers of hydroxide and hydronium. | | | 29 Nov | Nat Commun 2:563 doi:10.1038/ncomms1566 (2011) | | | Chemical sciences Physical chemistry | | Abstract | Full Text | PDF (522 kB) |
Supplementary Information |
| Suppression of the intrinsic stochastic pinning of domain walls in magnetic nanostripes OPEN | | | Manuel Muñoz and José L. Prieto | | | The propagation of magnetic domain walls in nanowires offers promise as the basis of future memory storage technologies. Muñoz and Prieto show that the random pinning of domain walls to structural defects in the nanowires can be suppressed at low fields, thus improving the reliability of the transmission of the domain walls substantially. | | | 29 Nov | Nat Commun 2:562 doi:10.1038/ncomms1575 (2011) | | | Physical sciences Applied physics | | | Materials science Nanotechnology | | | Abstract | Full Text | PDF (506 kB) |
| Experimental loss-tolerant quantum coin flipping OPEN | | | Guido Berlín, Gilles Brassard, Félix Bussières, Nicolas Godbout, Joshua A. Slater and Wolfgang Tittel | | | When two spatially separated parties flip a coin, it is impossible to choose between two alternatives in an unbiased manner. This study presents a quantum coin-flipping protocol that overcomes this problem and ensures a dishonest party cannot bias the outcome. | | | 29 Nov | Nat Commun 2:561 doi:10.1038/ncomms1572 (2011) | | | Physical sciences Optical physics | | | | Abstract | Full Text | PDF (1,257 kB) |
Supplementary Information |
| The use of referential gestures in ravens (Corvus corax) in the wild | | | Simone Pika and Thomas Bugnyar | | | Human children use referential gestures such as showing, offering and pointing, which are thought to form the foundation of language skills. Here, evidence is provided of ravens (Corvus corax) using showing and offering to direct other's attention, as an example of referential gesturing in a non-primate lineage. | | | 29 Nov | Nat Commun 2:560 doi:10.1038/ncomms1567 (2011) | | | Biological sciences Evolution | | | Zoology | | | Abstract | Full Text | PDF (372 kB) |
| Towards hybrid superlattices in graphene | | | Zhengzong Sun, Cary L. Pint, Daniela C. Marcano, Chenguang Zhang, Jun Yao, Gedeng Ruan, Zheng Yan, Yu Zhu, Robert H. Hauge and James M. Tour | | | The controllable modification of graphene by chemical functionalization can modulate its optical and electronic properties. Sun et al. devise a functionalisation-based method to pattern graphane/graphene superlattices within a single sheet of graphene. | | | 29 Nov | Nat Commun 2:559 doi:10.1038/ncomms1577 (2011) | | | Chemical sciences Materials science | | | Nanotechnology | | Abstract | Full Text | PDF (726 kB) |
Supplementary Information |
| Charge density waves in the graphene sheets of the superconductor CaC6 | | | K.C. Rahnejat, C.A. Howard, N.E. Shuttleworth, S.R. Schofield, K. Iwaya, C.F. Hirjibehedin, Ch. Renner, G. Aeppli and M. Ellerby | | | Charge density waves in the structure and electron density of layered materials are closely linked to superconductivity. Using scanning tunnelling techniques, Rahnejat et al. demonstrate the occurrence of such waves in the doped graphene sheets of the superconductor CaC6. | | | 29 Nov | Nat Commun 2:558 doi:10.1038/ncomms1574 (2011) | | | Physical sciences Condensed matter | | | Materials science Nanotechnology | | | | Abstract | Full Text | PDF (1,519 kB) |
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