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Download Plan:

application/pdf iconAmes FY2013 SSP FINAL.pdf

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Effective date: Dec. 2012

Policy Department(s):

ESHA

Download Policy:

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Effective date: Jan. 2013

Version number: 6.0

Document Number: Policy 10200.007

Putting Pressure on Iron-Arsenide Superconductors

Highlight Date: 
01/02/2013
Display Section: 
Broad Audience Highlights
Article Title: 
Hydrostatic-pressure Tuning of Magnetic, Nonmagnetic, and Superconducting States in Annealed Ca(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
Author(s): 
E. Gati, S. Köhler, D. Guterding, B. Wolf, S. Knöner, S. Ran, S. L. Bud’ko, P. C. Canfield and M. Lang
Article Link: 
http://dx.doi.org/10.1103/PhysRevB.86.220511
Journal Name: 
Physical Review B
Volume: 
86
Year: 
2012
Page Number(s): 
220511
Highlight Image: 
image/jpeg iconAMES_2012_PhysRevB_86_220511_Figure_Web.jpg
Project Affiliation: 
Complex States, Emergent Phenomena & Superconductivity in Intermetallic & Metal-like Compounds
Highlight Text: 

Stepping on a sample, particularly in high heels, is not something most researchers would do.  However, by applying pressure comparable to that generated under a stiletto heel, researchers discovered that the low temperature properties of an iron-arsenide-based superconductor where cobalt is substituted for some of the iron, Ca(Fe1-xCox)2As2, can be changed from antiferromagnetic, to superconducting to non-magnetic in a highly controllable manner. This remarkable finding is a consequence of the extreme sensitivity of the various types of order to changes in pressure.  This is a unique case where the main states associated with iron-based superconductivity can all be accessed in a single sample by applying modest pressure.  This discovery allows for the careful study of how these states interact and may shed light on why and how the iron arsenide materials have such remarkable superconducting properties.

Encouraging Superconductivity with Elemental Substitutions

Novel In Crystal Structures and Unusual Wetting Layer Diffusion

Controlling crystal structure on the nanoscale for In/Si(111). Bulk Indium grows bct but&nbsp;the In&nbsp;&nbsp;nanoislands&nbsp;&nbsp;grow in two different crystal structures: fcc&nbsp;&nbsp;islands with hexagonal(or triangular) and&nbsp;&nbsp;bct islands with rectangular shapes.

Here is the 2012 Ames Laboratory Holiday E-Card and those from past years:

 

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ImageA retirement reception for account specialist Karen Huiatt will be held at 2-4 p.m., Friday, Jan. 4 in room 205 TASF. Huiatt has been with the Ames Laboratory for 34 years. Cake and refreshments will be served.

 

 

 

 

 

 

 

 

 

 

ImageThe latest issue of Ames Laboratory's science magazine -- Inquiry 2012, Issue 2 -- is now available in print form. The issue profiles several scientists as "Faces of The Ames Laboratory" and takes a look at how the Midwest Forensics Resource Center is leveraging basic scientific research to develop new methods for tying forensic evidence to crime scenes.

The cover of the issue is an image of Rob McQueeney, one of the scientists profiled, that is a mosaic of some 2,000 small images of people and research taking place at Ames Laboratory. Look closely and you may find yourself or your work. Other scientists profiled include Emily Smith, Aaron Bryden, Javier Vela, Ryan Ott, Karl Gschneidner, Tanya Prozorov, Ning Fang, and John Corbett.

Print copies of Inquiry 2012, Issue 2 can be found on the magazine racks on first floor TASF and in the lobby of the Directors' Office, or in 111 TASF. To view a pdf version of the magazine, click HERE. A web-based version will be posted in early January.

 

 

 

 

 

A German public television (ZDF/Arte) crew was at Ames Lab on Dec 10 to shoot footage about rare earths. The crew worked with Ames Lab's Bill McCallum to capture some of the Lab's ongoing rare-earth research. The show, "Rare Earths - The Treasure Hunters" will also include footage from Molycorp's rare-earth mining operation in Mountain Pass, Calif.

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ZDF/Arte cinematographer Christian Schidlowski sets up for a closeup shot of Ames Lab assistant scientist Olena Palasyuk measuring samples.		 Image


Employee Assistance Program (EAP)

Holiday stress got you down?  Need a kick start into the New Year?  If so, you may want to contact Employee & Family Resources (EFR), your Employee Assistance Program.  All contact with EFR is strictly confidential.  Whether you need legal or financial help, assistance regarding elder care or just want to live better in general, EFR is ready to help.  This benefit is not just for you – it’s for your family members too!  Give them a call at (515) 244-6090 or (800) 327-4692 or (877) 542-6488 (TTY) or learn more at www.efr.org/eap.

Benefits

Your finalized benefit statement for 2013 will be available on AccessPlus beginning January 11, 2013.  To access AccessPlus, go to https://accessplus.iastate.edu/frontdoor/login.jsp.

Flexible Spending Accounts (FSA)

You have just a few days left to spend your 2012 flexible spending account (FSA) dollars.  All 2012 FSA expenses for health and dependent care must be incurred by December 31, 2012.  This is a use it or lose it situation.  Iowa State's FSA administrator is ASIFlex and claim forms are available on the ASIFlex website at http://isu.asiflex.com/default.html.  Claims for 2012 must be filed by April 30, 2013.

Licenses/Certifications

Should you need to renew a specific license or certification for 2013, please remember to do so by placing a reminder on your calendar at this time.  If your job requires a particular license or certification, you are expected to keep it valid at all times.

Ames Lab Human Resources wishes you a safe and healthy new year.  Get ready to start writing 2013!