Results 71 to 80 of about 2,779,137 (346)

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

Advanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens, Francisco Romero‐Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas‐Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual   +8 more
wiley   +1 more source

Lithographically Controlled Liquid Metal Diffusion in Graphene: Fabrication and Magnetotransport Signatures of Superconductivity

Advanced Materials, EarlyView.
Lithography‐guided intercalation creates a proximitized 2D superconducting Ga layer under graphene Hall bars via liquid‐metal intercalation. The image shows a Hall bar where Ga atoms from the liquid phase enter through patterned intercalation channels beneath quasi‐freestanding bilayer graphene, forming a confined 2D metal that demonstrates ...
Stefan Wundrack, Marc Bothe, Marcelo Jaime, Kathrin Küster, Markus Gruschwitz, Yefei Yin, Zamin Mamiyev, Philip Schädlich, Bharti Matta, Sawani Datta, Marius Eckert, Christoph Tegenkamp, Ulrich Starke, Rainer Stosch, Hans Werner Schumacher, Thomas Seyller, Klaus Pierz, Teresa Tschirner, Andrey Bakin   +18 more
wiley   +1 more source

The “fundamental theorem of algebra” for quaternions [PDF]

Bulletin of the American Mathematical Society, 1944
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eilenberg, Samuel, Niven, Ivan
openaire   +2 more sources

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

Colloidal Heterostructures Enable Interfacial Transport of Immiscible Molecules in Printable Organohydrogels

Advanced Materials, EarlyView.
Multiphase printable organohydrogels with tunable microstructures are developed to control molecular transport pathways for immiscible cargo. The tortuosity and domain size of the colloidal phases are tuned by adjusting temperature and shear during processing, which enables the tailoring of diffusion kinetics due to different transport pathways.
Riley E. Dowdy‐Green, Rony Waheibi, Nazanin Shakoury, Yuemei Ye, Lilian C. Hsiao   +4 more
wiley   +1 more source

Fundamental theorems of extensional untyped $\lambda$-calculus revisited [PDF]

Computer Science Journal of Moldova, 2015
This paper presents new proofs of three following fundamental theorems of the untyped extensional $\lambda$-calculus: the $\eta$-Postpo-nement theorem, the $\beta\eta$-Normal form theorem, and the Norma-lization theorem for $\beta\eta$-reduction.
Alexandre Lyaletsky
doaj  

Quantum Phase Transitions in Graphene Coupled to a Twisted WSe2 Moiré Ferroelectricity

Advanced Materials, EarlyView.
Moiré ferroelectricity in twisted WSe2 (t‐WSe2) breaks graphene's sublattice symmetry, inducing a room‐temperature metal‐insulator transition. Coupling graphene with ferroelectric domains of t‐WSe2 creates local Dirac points and metallic phases with Fermi‐liquid and non‐Fermi‐liquid behavior.
Budhi Singh, Yasir Hassan, Nasir Ali, Santhosh Durairaj, Jimin Jang, Tien Dat Ngo, Jyoti Saini, Muhammad Sabbtain Abbas, Kenji Watanabe, Takashi Taniguchi, Min Sup Choi, Subhasis Ghosh, Taesung Kim, Hyung Mo Jeong, Sungjoo Lee, Won Jong Yoo, Pawan Kumar Srivastava, Changgu Lee   +17 more
wiley   +1 more source

Exploring the Fundamental Theorem of Arithmetic in Excel 2007

Spreadsheets in Education, 2010
This paper discusses how fundamentals of number theory, such as unique prime factorization and greatest common divisor can be made accessible to secondary school students through spreadsheets.
Stephen Sugden, David Miller
doaj  

Nonequilibrium Period with Emergence of Marangoni Circulations in Meniscus Splitting

Advanced Materials Interfaces, EarlyView.
The emergence and evolution of Marangoni convection in the meniscus splitting phenomenon are investigated. During the mass circulation of viscous fluids, the confluence and bifurcation of polymer dispersions beneath the evaporative interface lead to the inhomogeneous densification of the skin layer.
Leijie Wu, Kosuke Okeyoshi
wiley   +1 more source

Demonstration of 3D‐Printed Optical Antennas for High‐Speed Optical Wireless Communication Using Market‐Ready Materials

Advanced Materials Technologies, EarlyView.
The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti, Marco Meucci, Paolo Foggi, Caterina Credi, Satoshi Iketani, Cristiana Lofrumento, Jacopo Catani   +6 more
wiley   +1 more source