Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides

Posted by klaurent Berkeley

Kavli Affiliate: Ali Javey | Summary:Semiconductor heterostructures are the fundamental platform for many important device applications such as lasers, light-emitting diodes, solar cells and high-electron-mobility transistors. Analogous to traditional heterostructures, layered transition metal dichalcogenide (TMDC) heterostructures can be designed and built by assembling individual single-layers into functional multilayer structures, but in principle with atomically sharp […]


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Identifying Potential Markers of the Sun’s Giant Convective Scale

Posted by klaurent Stanford

Kavli Affiliate: Philip H. Scherrer | Summary:Line-of-sight magnetograms from the Helioseismic and Magnetic Imager (HMI) of the Solar Dynamics Observatory (SDO) are analyzed using a diagnostic known as the "Magnetic Range of Influence," or MRoI. The MRoI is a measure of the length over which a photospheric magnetogram is balanced and so its application gives […]


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MoS2 P-type Transistors and Diodes Enabled by High Workfunction MoOx Contacts

Posted by klaurent Berkeley

Kavli Affiliate: Ali Javey | Summary:The development of low-resistance source/drain contacts to transition metal dichalcogenides (TMDCs) is crucial for the realization of high-performance logic components. In particular, efficient hole contacts are required for the fabrication of p-type transistors with MoS2, a model TMDC. Previous studies have shown that the Fermi level of elemental metals is […]


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Scalar field inflation and Shan-Chen fluid models

Posted by klaurent Cornell

Kavli Affiliate: Jie Shan | First 5 Authors: Donato Bini, Donato Bini, , , | Summary: A scalar field equivalent to a non-ideal "dark energy fluid" obeying a Shan-Chen-like equation of state is used as the background source of a flat Friedmann-Robertson-Walker cosmological spacetime to describe the inflationary epoch of our universe. Within the slow-roll […]


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Shot noise and magnetism of Pt atomic chains: accumulation of points at the boundary

Posted by klaurent Delft

Kavli Affiliate: Roel H. M. Smit | Summary:Pt is known to show spontaneous formation of monatomic chains upon breaking a metallic contact. From model calculations, these chains are expected to be spin polarized. However, direct experimental evidence for or against magnetism is lacking. Here, we investigate shot noise as a potential source of information on […]


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A Comprehensive Review of Heat Transfer in Thermoelectric Materials and Devices

Posted by klaurent Cornell

Kavli Affiliate: Zhiting Tian | First 5 Authors: Zhiting Tian, Zhiting Tian, , , | Summary: Solid-state thermoelectric devices are currently used in applications ranging from thermocouple sensors to power generators in satellites, to portable air-conditioners and refrigerators. With the ever-rising demand throughout the world for energy consumption and CO2 reduction, thermoelectric energy conversion has […]


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Vibration Isolation Design for the Micro-X Rocket Payload

Posted by klaurent MIT

Kavli Affiliate: Sarah N. T. Heine | Summary:Micro-X is a NASA-funded, sounding rocket-borne X-ray imaging spectrometer that will allow high precision measurements of velocity structure, ionization state and elemental composition of extended astrophysical systems. One of the biggest challenges in payload design is to maintain the temperature of the detectors during launch. There are several […]


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Participation And performance In 8.02x Electricity And Magnetism: The First Physics MOOC From MITx

Posted by klaurent MIT

Kavli Affiliate: John Belcher | Summary:Massive Open Online Courses are an exciting new avenue for instruction and research, yet they are full of unknowns. In the Spring of 2013, MITx released its first introductory physics MOOC through the edX platform, generating a total enrollment of 43,000 students from around the world. We describe the population […]


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Langlands correspondence for isocrystals and the existence of crystalline companions for curves

Posted by klaurent Tokyo

Kavli Affiliate: Tomoyuki Abe | Summary:In this paper, we show the Langlands correspondence for isocrystals on curves. This shows the existence of crystalline companion in the curve case. For the proof, we construct the theory of arithmetic $mathscrD$-modules for algebraic stacks whose diagonal morphisms are finite. | Search Query: arXiv Query: search_query=au:”Abe Tomoyuki”&id_list=&start=0&max_results=10Read More


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The REgolith X-Ray Imaging Spectrometer (REXIS) for OSIRIS-REx: Identifying Regional Elemental Enrichment on Asteroids

Posted by klaurent MIT

Kavli Affiliate: Rebecca Masterson | Summary:The OSIRIS-REx Mission was selected under the NASA New Frontiers program and is scheduled for launch in September of 2016 for a rendezvous with, and collection of a sample from the surface of asteroid Bennu in 2019. 101955 Bennu (previously 1999 RQ36) is an Apollo (near-Earth) asteroid originally discovered by […]


Continue.. The REgolith X-Ray Imaging Spectrometer (REXIS) for OSIRIS-REx: Identifying Regional Elemental Enrichment on Asteroids