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May 2014

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From:
Louis Hart <[log in to unmask]>
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TechNet E-Mail Forum <[log in to unmask]>, Louis Hart <[log in to unmask]>
Date:
Wed, 21 May 2014 14:26:27 +0000
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TechNetters, I get a weekly email from the American Physical Society with 5 or 6 stories about recent research, of which I read 1 or 2.

http://physics.aps.org/synopsis-for/10.1103/PhysRevApplied.1.044001 is the third one this week, Growing Whiskers.  For details, we would have to go to the original paper, but the summary is intriguing.

Louis Hart

From: [log in to unmask] [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
Sent: Monday, May 19, 2014 12:20 PM
To: Louis Hart
Subject: This Week in Physics - 19 May 2014

[http://physics.aps.org/sites/physics.aps.org/themes/PHYSICS/graphics/mailings/physics-mail-banner-long.png?v=2]
This week in Physics — May 19, 2014
[http://physics.aps.org/assets/10.1103/Physics.7.53/figure/1/thumb]

Viewpoint: Hiking Trails in Attosecond Landscapes <http://physics.aps.org/redirect?url=http://physics.aps.org/articles/v7/53&referer=email>
Oren Pedatzur, Oren Raz, and Nirit Dudovich, Physics 7, 53 – Published May 19, 2014

The frequency and intensity of attosecond light pulses can be increased by optimizing the optical pulses that drive a high-harmonic generation process.





[http://physics.aps.org/assets/10.1103/Physics.7.52/figure/1/thumb]

Focus: Cutting Losses for Surface Light <http://physics.aps.org/redirect?url=http://physics.aps.org/articles/v7/52&referer=email>
Michael Schirber, Physics 7, 52 – Published May 16, 2014

Light sent along metal surfaces—inside a future optical computer, for instance—may undergo reduced losses if the emitter is a thin slit or hole, experiments show.





[https://d22izw7byeupn1.cloudfront.net/journals/PHYSICS/synopses/images/10.1103/PhysRevApplied.1.044001]

Synopsis: Growing Whiskers <http://physics.aps.org/redirect?url=http://physics.aps.org/synopsis-for/10.1103/PhysRevApplied.1.044001&referer=email>
Published May 15, 2014

A new model explains the formation of metal whiskers—tiny hairlike protrusions on a metallic surface—which can be responsible for short circuits in electronic components.





[https://d22izw7byeupn1.cloudfront.net/journals/PHYSICS/synopses/images/10.1103/PhysRevB.89.180406]

Synopsis: Spins Move between Insulators <http://physics.aps.org/redirect?url=http://physics.aps.org/synopsis-for/10.1103/PhysRevB.89.180406&referer=email>
Published May 14, 2014

Experiments demonstrate a surprising transfer of electron spin to luminescent defects in diamond from a nearby magnet, even though the materials have no mobile electrons to carry the spin.





[https://d22izw7byeupn1.cloudfront.net/journals/PHYSICS/synopses/images/10.1103/PhysRevLett.112.198101]

Synopsis: Why Heat Moves Molecules in Solution <http://physics.aps.org/redirect?url=http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.112.198101&referer=email>
Published May 13, 2014

Researchers have developed a complete theory for thermophoresis—the process by which molecules in a liquid move under the influence of temperature—and tested it under a wide range of conditions.






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