Hot vibes
Article Abstract:
Crystal vibrations, known as phonons provide an attractive mechanism that pairs up electrons possessing opposite senses of rotation, or spins. The technique of scanning tunneling spectroscopy, in which voltage measurements from a conducting probe provide a precise picture of the density of energy states on an atomic scale is used to measure the direct energy of the phonons pulling the unpartnered electrons away.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
The first axion?
Article Abstract:
An Italian PVLAS collaboration report states that a magnetic field can be used to rotate the polarization of a light wave in a vacuum. The collaboration calibrated the system and verified its efficient operation by introducing a low-pressure gas into the laser-beam vacuum region and confirming the Cotton-Moulton effect.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: More like a man. The road not taken. Adult pancreatic beta-cells are formed by self-duplication rather than stem-cell differentiation
- Abstracts: Tongue tied. The database revolution. Budget let-downs
- Abstracts: Fresh flowers. Artists on a mission. Marine undercurrents: An installation by Ellen Gallagher builds on some little-known work by Sigmund Freud
- Abstracts: Sticky spices. Finding the missing fundamental. Friends and grandmothers
- Abstracts: Something to watch over us. Breaking new ground. Resonant slow fault slip in subduction zones forced by climatic load stress