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Related papers: Single-crystal field-effect transistors based on c…

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We report the successful fabrication of mono- and seven-core superconducting wires of FeSe1-xTex using an in-situ Fe-diffusion process based on the powder-in-tube (Fe-diffusion PIT) method. The reacted layer in these wires were found to…

"F-free" CeOBiS$_2$ single crystals have successfully grown, thoroughly eliminating a concern about F-contamination by using a high-purity CsCl flux. The obtained crystals have a plate-like shape with a size of 1.0-3.0 mm in the…

Free-standing Bi$_2$Se$_3$ single crystal flakes of variable thickness are grown using a catalyst-free vapor-solid synthesis and are subsequently transferred onto a clean Si$^{++}$/SiO$_2$ substrate where the flakes are contacted in Hall…

Mesoscale and Nanoscale Physics · Physics 2015-08-19 R. Ockelmann , A. Müller , J. H. Hwang , S. Jafarpisheh , Drögeler , B. Beschoten , C. Stampfer

Atomically thin, single-crystalline transition metal dichalcogenides (TMDCs) grown via chemical vapor deposition (CVD) on sapphire substrates exhibit exceptional mechanical and electrical properties, positioning them as excellent channel…

High contact resistance is one of the primary concerns for electronic device applications of two-dimensional (2D) layered semiconductors. Here, we explore the enhanced carrier transport through metal-semiconductor interfaces in WS2 field…

Discotic liquid crystals can self-align to form one-dimensional semiconducting wires, many tens of microns long. In this letter, we describe the preparation of semiconducting films where the stacking direction of the disc-like molecules is…

Materials Science · Physics 2007-05-23 C. Deibel , D. Janssen , P. Heremans , V. de Cupere , Y. Geerts , M. L. Benkhedir , G. J. Adriaenssens

High quality single crystals of heavy Fermion CeCoIn5 superconductor have been grown by flux method with a typical size of (1~2)mm x (1~2)mm x ~0.1 mm. The single crystals are characterized by structural analysis from X-ray diffraction and…

We present a theoretical investigation of the anomalous ferroelectricity of mixed-stack charge transfer molecular crystals, based on the Peierls-Hubbard model, and first principles calculations for its parameterization. This approach is…

Materials Science · Physics 2014-09-30 Gabriele D'Avino , Matthieu J. Verstraete

The surface conductivity is measured by a four-probe technique for pentacene and rubrene single-crystals laminated on polarized and nearly unpolarized molecular monolayers with application of perpendicular electric fields. The polarization…

Materials Science · Physics 2009-11-10 J. Takeya , T. Nishikawa , T. Takenobu , S. Kobayashi , C. Goldmann , C. Krellner , T. Shimoda , T. Mitani , Y Iwasa , B. Batlogg

We investigate the magnetic properties of Fe Phthalocyanines (FePc) that are experimentally arranged in quasi one-dimensional chains when they are grown in thin films or powders. By means of DFT calculations we reproduce the structural…

Strongly Correlated Electrons · Physics 2024-04-22 Roman Pico , Alejandro Rebola , Jorge Lasave , Paula Abufager , Ignacio Hamad

In this work we demonstrate the synthesis of millimetre-sized single-crystals of graphene, achievable in a commercially-available cold-wall CVD reactor, and several different approaches to transfer it from the growth substrate to a target…

Materials Science · Physics 2017-11-15 Vaidotas Miseikis , Shaohua Xiang , Stefano Roddaro , Stefan Heun , Camilla Coletti

Understanding charge transport in organic semiconductors in large electric fields is relevant to many applications. We present transport measurements in organic field-effect transistors based on poly(3-hexylthiophene) and…

Materials Science · Physics 2010-03-09 J. H. Worne , J. E. Anthony , D. Natelson

The use of two truly two-dimensional gapless semiconductors, monolayer and bilayer graphene, as current-carrying components in field-effect transistors (FET) gives access to new types of nanoelectronic devices. Here, we report on the…

Mesoscale and Nanoscale Physics · Physics 2009-03-09 H. Schmidt , T. Luedtke , P. Barthold , E. McCann , V. I. Falko , R. J. Haug

In this paper we present an improved process for producing elastomer transistor stamps and high-mobility organic field-effect transistors (FETs) based on semiconducting acene molecular crystals. In particular, we have removed the need to…

Soft Condensed Matter · Physics 2009-11-13 A. P. Micolich , L. L. Bell , A. R. Hamilton

Metalated phthalocyanines (Pc's) are robust and versatile molecular complexes, whose properties can be tuned by changing their functional groups and central metal atom. The electronic structure of magnesium Pc (MgPc) - structurally and…

Reducing the contact resistance of field-effect transistors based on two-dimensional materials is one of the key improvements required to enable the integration of such transistors in an advanced semiconductor manufacturing process.…

Mesoscale and Nanoscale Physics · Physics 2024-12-31 Giuseppe Lovarelli , Fabrizio Mazziotti , Demetrio Logoteta , Giuseppe Iannaccone

Amorphous samples of Al-Cu-Fe were crystallized to the icosahedral phase under the control of electrical conductivity and thermopower at a rather small temperature of T=720 K. A comparison between different annealing states of the amorphous…

Materials Science · Physics 2007-05-23 R. Haberkern , C. Roth , R. Knoefler , F. Zavaliche , P. Haeussler

We report on the fabrication and electrical characterization of field-effect devices based on wire-shaped InP crystals grown from Au catalyst particles by a vapor-liquid-solid process. Our InP wires are n-type doped with diameters in the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. De Franceschi , J. A. van Dam , E. P. A. M. Bakkers , L. F. Feiner , L. Gurevich , L. P. Kouwenhoven

Producing and manipulating graphene on fab-compatible scale, while maintaining its remarkable carrier mobility, is key to finalize its technological application. We show that a large-scale approach (chemical vapor deposition on Cu followed…

Mesoscale and Nanoscale Physics · Physics 2020-08-24 Sergio Pezzini , Vaidotas Mišeikis , Simona Pace , Francesco Rossella , Kenji Watanabe , Takashi Taniguchi , Camilla Coletti

Controlling the insulator-to-2D-metal transition is a promising key to overcome the scaling problem that silicon-based electronic devices will face in the near future. In this context, we examine the channel formation of SrTiO3-based…

Strongly Correlated Electrons · Physics 2017-02-06 Alejandro Schulman , Ai Kitoh , Pablo Stoliar , Isao H. Inoue
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