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Program Highlights

Real-space imaging of a nematic quantum liquid

Research

Interactions among electrons can give rise to a variety of exotic quantum phases in solids. An intriguing example is the formation of “nematic” electronic states, whose wave functions break the rotational symmetry of the host material.

(2017)

Chiral anomaly observed as an axial current in two topological quantum materials

Research

Electrons in topological materials behave like massless particles (called Weyl fermions). They are either right- or left-handed (the spins are locked parallel or antiparallel to their velocity). In parallel applied electric and magnetic fields, one population grows while the other shrinks. This leads to a new kind of electrical current called an “axial” current.

(2017)

Graduate Students for Diversity in Science at UCSB

Education

Graduate Students for Diversity in Science is composed of an interdisciplinary group of young scientists at the University of California, Santa Barbara (UCSB).

(2017)

DNP Nuclear Magnetic Resonance

Facilities

The DNP-NMR technique in the MRSEC Shared Experimental Facilities allows the selective measurement of surface species, in addition to enabling large sensitivity enhancements. The biradicals serve only to act as an antenna for the microwaves. Very small quantities of biradicals are introduced into the sample, which do not change the surface chemistry that results from hydration.

(2017)

From High School to Professional Scientist: Developing a Pipeline

With declining numbers of STEM degrees and limited diversity in the STEM workforce, there is a need for expansion of research opportunities for undergraduate and high school students, in particular those from underrepresented groups.

(2017)

1.3µm Optical Interconnect on Silicon: A Monolithic III-Nitride Nanowire Array Photonic Integrated Circuit

A feasible optical  interconnect on a silicon complementary metal-oxide-semiconductor chip demands epitaxial growth and monolithic integration of diode lasers and optical detectors with guided wave components on a (001) Si wafer, with all the components preferably operating in the wavelength range of 1.3–1.55 μm at room temperature.

(2017)

Generating Accelerating Light with Metasurfaces

Finely patterned surfaces, known as metasurfaces, can control light with unprecedented ability. Unlike traditional optical elements, metasurfaces derive their optical properties from their subwavelength texture rather than their shape.

(2017)

New Design Principles for Self-Folding Materials

Research

From the ancient art of origami to modern meta-materials research, a central goal has been to develop the ability to convert a flat, stiff sheet into its final three-dimensional shape with just one single folding motion. Except for a few known cases, general design rules for the required patterns of creases have been elusive.  

(2017)

Universal Dynamics of Bosons Across a Quantum Phase Transition

Research

A Bose-Einstein condensate, when shaken appropriately, shows universal dynamics at a ferromagnetic quantum critical point.

(2017)

An Integrated Design and Fabrication Strategy for Entirely Soft, Autonomous Robots

Soft robots possess many attributes that are difficult, if not impossible, to achieve with conventional robots composed of rigid materials. Yet, despite recent advances, soft robots must still be tethered to hard robotic control systems and power sources. 

(2017)

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