April 2008 Volume 7 Number 4, pp 255 - 339
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EDITORIAL
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Focus: Polymers
THEORY IN APPLICATION p255
It's not surprising that the work of de Gennes has already found a
variety of applications - understanding soft matter brings great
advantages for industry.
doi:10.1038/nmat2155
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYd0EY
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CORRESPONDENCE
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ORIGIN OF THE MAGNETO-THERMOGALVANIC VOLTAGE IN CLUSTER-ASSEMBLED
METALLIC NANOSTRUCTURES p257
Eric E. Fullerton and Stephane Mangin
doi:10.1038/nmat2153a
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYe0EZ
ORIGIN OF THE MAGNETO-THERMOGALVANIC VOLTAGE IN CLUSTER-
ASSEMBLED METALLIC NANOSTRUCTURES p258
Santiago Serrano-Guisan et al.
doi:10.1038/nmat2153b
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYf0Ea
ORIGIN OF THE ENERGY BANDGAP IN EPITAXIAL GRAPHENE pp258 - 259
Eli Rotenberg et al.
doi:10.1038/nmat2154a
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYg0Eb
ORIGIN OF THE ENERGY BANDGAP IN EPITAXIAL GRAPHENE pp259 - 260
S.Y. Zhou et al.
doi:10.1038/nmat2154b
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYh0Ec
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COMMENTARY
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Focus: Polymers
THEORETICAL PROFITS pp261 - 263
From its inception, the polymer industry has engaged theorists in
materials design. Despite the maturation of the industry, the need
for theoreticians to contribute to the development of new materials
for established and emerging applications is as relevant as ever.
Glenn H. Fredrickson
doi:10.1038/nmat2148
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYi0Ed
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INTERVIEW
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Focus: Polymers
THE APPLIANCE OF SCIENCE pp265 - 266
Starting out as a theoretical physicist, Ludwik Leibler was first
introduced to the concept of a polymer by Pierre-Gilles de Gennes. He
has gone on to stamp his own inimitable style on the challenges that
he has undertaken in soft matter, in particular building strong links
with commercial companies. Nature Materials talked to him about the
benefits of joining forces with industry - and his experiences with
de Gennes.
doi:10.1038/nmat2149
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYj0Ee
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RESEARCH HIGHLIGHTS
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INSIDE INFORMATION p267
doi:10.1038/nmat2150
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NEWS AND VIEWS
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TRANSITION METAL OXIDES: MULTIFERROICS GO HIGH-TC pp269 - 270
The discovery of magnetically induced electric polarization in cupric
oxide at 230 K has uncovered a new class of multiferroics with
significantly higher ordering temperatures.
Maxim Mostovoy
doi:10.1038/nmat2143
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYl0Eg
PEROVSKITE OXIDES: AN ATOMIC FORCE PENCIL AND ERASER pp270 - 271
A method of writing and erasing conducting nanostructures at the
interface between the wide-bandgap insulators LaAlO3 and SrTiO3 is
presented. New developments for ultrahigh-density information storage
look feasible.
Guus Rijnders and Dave H. A. Blank
doi:10.1038/nmat2145
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYm0Eh
HYDROGELS: STRUCTURE STARTS TO GEL pp271 - 273
The new generation of hydrogels moves away from the bulk materials of
old, to those with multilayered, complex internal structures and
controllable physical properties.
Jennifer Elisseeff
doi:10.1038/nmat2147
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYn0Ei
PHOTONICS: METAMATERIALS TO BEAT THE STATIC pp273 - 274
The development of superconducting metamaterials opens the way to a
new level of control over electromagnetic fields.
Evgenii Narimanov
doi:10.1038/nmat2146
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYo0Ej
MATERIAL WITNESS: STARTING TO SHINE p274
Philip Ball
doi:10.1038/nmat2142
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYp0Ek
COHERENT DIFFRACTION: GIANT MOLECULES OR TINY CRYSTALS? pp275 - 276
Crystallography and microscopy are alternative pathways for
investigating the structure of small objects. More elaborate
techniques are needed at length scales where atomic clusters become
nanocrystals.
Ian Robinson
doi:10.1038/nmat2144
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYq0El
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REVIEW
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Focus: Polymers
PATTERNING SURFACES WITH FUNCTIONAL POLYMERS pp277 - 290
Zhihong Nie and Eugenia Kumacheva
doi:10.1038/nmat2109
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYs0En
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYt0Eo
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LETTERS
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CUPRIC OXIDE AS AN INDUCED-MULTIFERROIC WITH HIGH-TC pp291 - 294
Induced multiferroics, where ferroelectricity arises through the
magnetic order, have attracted significant interest, despite maximum
Curie temperatures of only 40 K. The discovery of multiferroic
coupling up to 230 K in CuO therefore represents a major advance
towards high-TC multiferroics.
T. Kimura et al.
doi:10.1038/nmat2125
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYu0Ep
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYv0Eq
A d.c. MAGNETIC METAMATERIAL pp295 - 297
Metamaterials have attracted a great amount of interest, owing to a
number of appealing applications such as cloaking. The use of
superconducting components now enables the fabrication of
metamaterials that could be used to cloak static magnetic fields
rather than oscillating light waves.
F. Magnus et al.
doi:10.1038/nmat2126
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYw0Er
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYx0Es
NANOSCALE CONTROL OF AN INTERFACIAL METAL-INSULATOR TRANSITION AT ROOM
TEMPERATURE pp298 - 302
A highly conductive channel, a few nanometres wide, can be reversibly
created by an AFM tip operating at room temperature at the interface
between two oxide insulators. This discovery could provide a powerful
method for the design and realization of electronic circuits at the
nanoscale.
C. Cen et al.
doi:10.1038/nmat2136
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYy0Et
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqYz0Eu
GATED PROTON TRANSPORT IN ALIGNED MESOPOROUS SILICA FILMS
pp303 - 307
Modulated proton transport has a significant role in biological
processes such as ATP synthesis and in electrochemical energy
conversion. Electrostatic gating of proton conduction that can be
actively modulated is now shown in aligned mesoporous silica thin-
films.
Rong Fan et al.
doi:10.1038/nmat2127
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY10Eh
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY20Ei
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ARTICLES
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COORDINATION-DEPENDENT SURFACE ATOMIC CONTRACTION IN NANOCRYSTALS
REVEALED BY COHERENT DIFFRACTION pp308 - 313
Coherent diffraction experiments and molecular dynamics enable the
study of atomic contraction in gold nanocrystals. They reveal a surface-
orientation dependence of the atomic bond contraction-remarkably
different from the situation in bulk.
W. J. Huang et al.
doi:10.1038/nmat2132
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY30Ej
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY40Ek
STRAIN CONTROL AND SPONTANEOUS PHASE ORDERING IN VERTICAL
NANOCOMPOSITE HETEROEPITAXIAL THIN FILMS pp314 - 320
Two-phase materials hold great promise for multifunctional
applications. To realize practical devices, it is first necessary to
obtain a high degree of control of the phase composition. By taking
into account the properties of each phase, it is now possible to
control the strain at the interfaces between them in two-component
materials, and obtain phase ordering at large scales.
Judith L. MacManus-Driscoll et al.
doi:10.1038/nmat2124
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY50El
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY60Em
FIELD-EFFECT-MODULATED SEEBECK COEFFICIENT IN ORGANIC SEMICONDUCTORS
pp321 - 325
The nature of the charge transport in organic semiconductors is
subject to intense research. A study on the thermal and charge
transport of single-crystal thin-film polymers now shows close
similarities between the transport properties of organic and inorganic
semiconductors.
K. P. Pernstich, B. Rossner and B. Batlogg
doi:10.1038/nmat2120
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY70En
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqY80Eo
ORIENTATION-DEPENDENT IONIZATION ENERGIES AND INTERFACE DIPOLES IN
ORDERED MOLECULAR ASSEMBLIES pp326 - 332
Although an isolated individual molecule clearly has only one
ionization potential, multiple values are found for molecules in
ordered assemblies. By understanding this phenomenon, design rules for
improving organic electronic interfaces can be derived.
Steffen Duhm et al.
doi:10.1038/nmat2119
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqZA0Ey
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqZB0Ez
Ru-Pt CORE-SHELL NANOPARTICLES FOR PREFERENTIAL OXIDATION OF CARBON
MONOXIDE IN HYDROGEN pp333 - 338
To produce hydrogen by reforming hydrocarbons, efficient catalysts
capable of removing carbon monoxide are needed. This can now be
achieved via a preferential oxidation mechanism using nanoparticle
catalysts consisting of a ruthenium core covered with platinum.
Selim Alayoglu, Anand U. Nilekar, Manos Mavrikakis and Bryan Eichhorn
doi:10.1038/nmat2156
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqZC0E1
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqZD0E2
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ERRATUM
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ZERO-FIELD OPTICAL MANIPULATION OF MAGNETIC IONS IN SEMICONDUCTORS
p339
R. C. Myers et al.
doi:10.1038/nmat2158
http://ealerts.nature.com/cgi-bin24/DM/y/ejlp0Xztnp0HjS0BqZE0E3
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