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Items tagged with "graphene"

A pink sheet with a hexagonal pattern lies over a similar purple sheet of hexagons with both being curved to form a bumpy surface that is reminiscent of rolling hills.
May 5, 2022

Bilayer Graphene Inspires Two-Universe Cosmological Model

Physicists sometimes come up with crazy stories that sound like science fiction. Some turn out to be true, like how the curvature of space and time described by Einstein was eventually borne out by astronomical measurements. Others linger on as mere possibilities or mathematical curiosities.

Two hexagonal grids are twisted relative to each other to create hexagonal snowflake-like repeating patterns against a blue background.
October 18, 2021

Graphene’s Magic Act Relies on a Small Twist

Carbon is not the shiniest element, nor the most reactive, nor the rarest. But it is one of the most versatile.

A colorful computer-generated map of the electrical current in a graphene channel that makes a sharp turn.
July 22, 2020

Diamonds Shine a Light on Hidden Currents in Graphene

It sounds like pure sorcery: using diamonds to observe invisible power swirling and flowing through carefully crafted channels. But these diamonds are a reality. JQI Fellow Ronald Walsworth and Quantum Technology Center (QTC) Postdoctoral Associate Mark Ku, along with colleagues from several other institutions, including Professor Amir Yacoby and Postdoctoral Fellow Tony Zhou at Harvard, have developed a way to use diamonds to see the elusive details of electrical currents.

January 12, 2018

Light may unlock a new quantum dance for electrons in graphene

A team of researchers has devised a simple way to tune a hallmark quantum effect in graphene—the material formed from a single layer of carbon atoms—by bathing it in light. Their theoretical work, which was published recently in Physical Review Letters, suggests a way to realize novel quantum behavior that was previously predicted but has so far remained inaccessible in experiments.