Freestanding crystalline YBa2Cu3O7−x heterostructure membranes

Anomalous Dynamical Behavior of Freestanding Graphene Membranes.

We report subnanometer, high-bandwidth measurements of the out-of-plane (vertical) motion of atoms in freestanding graphene using scanning tunneling microscopy. By tracking the vertical position over a long time period, a 1000-fold increase in the ability to measure space-time dynamics of atomically thin membranes is achieved over the current state-of-the-art imaging technologies. We observe th...

Fabrication Based on Crystalline Membranes

Bending of thin sheets or ribbons is a ubiquitous phenomenon that impacts our daily lives, from the household thermostat to sensors in airbags. At nanometer-scale thicknesses, the mechanics responsible for bending and other distortions in sheets can be employed to create a nanofabrication approach leading to novel nanostructures. The process and resulting structures have been aptly referred to ...

Thermodynamics of quantum crystalline membranes

Fabrication of freestanding, microperforated membranes and their applications in microfluidics.

This manuscript describes a convenient method for the fabrication of freestanding, microperforated membranes in photocurable polymers using only one step of photolithography. We used photosensitive prepolymers to make the membranes and photolithography to define the micropatterns. We demonstrated the fabrication of single- and multilayer microperforated membranes in SU-8 photoresist and Norland...

Optical temperature measurements on thin freestanding silicon membranes.

We report on a contactless, all-optical method to derive thermal properties of 340 nm thin, 640×640 μm(2) wide, freestanding silicon membranes. Exploiting the temperature dependent optical transmissivity of 4×10(-3)/K between 300 and 470 K, we are able to measure the temperature of the membrane with millikelvin thermal, micrometer lateral, and nanosecond temporal resolution. Experiments such as...