Highlights

A group led by Ong and Cava (Princeton) has reported the observation of phase transitions involving the Dirac electrons in bismuth. By monitoring the spins of the Dirac electrons, they observed sharp jumps of the magnetization MT in high magnetic field H […]

In a normal material, electrons repel each other due to their charge. In the copper-oxide superconductors, however, an attractive force develops between electrons that pairs them up at temperatures up to 140 degrees above absolute zero. […]

In a recent publication in Nature, we reported bulk metallic glass (BMG) matrix
composites exhibiting >10% tensile ductility and Fracture Toughness comparable to or
exceeding the toughest metals known [1]. These high performance composites
demonstrate the potential of metallic glass as revolutionary structural metals. The BMG matrix
composites contain elastically soft dendrites comprised of Ti-Zr-Nb embedded in
a glassy matrix. […]

Producing high quality thin films of controlled thickness is a critical step for the development of ferroelectric nanophotonic devices. Developed recently, the process referred to as layer transfer has been shown to be very promising: ions are implanted in a plan parallel to the interface of a bilayer system that is then heated. The high […]

Single-crystal organic field-effect transistors (OFETs) are ideal device structures for studying fundamental science associated with charge transport in organic materials and have demonstrated outstanding electrical characteristics. However, it remains a technical challenge to integrate single-crystal devices into practical electronic applications. A key difficulty is that organic single-crystal devices are usually fabricated one device at a […]

Objective: To develop novel microfluidic flow cells that allow trapping of single DNA molecules and studies of the binding of sequence-specific probes to the trapped DNA.

Approach: Two different devices have been designed and fabricated: a cross-slot that uses flow focusing to direct probes to the trapped DNA and a microfluidic “four roll mill” that allows the flow type to be varied from extension to shear to rotation near the trapped DNA (fig. 2).

The Rubner and Van Vliet groups of the MIT MRSEC have discovered a previously overlooked factor that should be considered in the design of anti-bacterial coatings…

The quest for economical devices with faster speeds, lighter weights, and higher feature density drives demand for new fabrication tools that create ever more complex patterns, with sub-micron features. Typical state-of-the-art fabrication is top-down and involves multiple steps and careful surface preparation; Nature, on the other hand, provides us with examples of delicate, detailed, […]