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What Coexists with the Ferromagnetic Metallic Phase in Manganites?
Colossal magnetoresistance, whereby the application of a magnetic field reduces the resistivity of a manganite by orders of magnitude, is generally believed to occur because of coexisting phases. Development of a complete theory to explain the phenomenon requires that the exact nature of these phases be known. We used resonant elastic soft x-ray scattering to examine the superlattice order that exists in La{sub 0.35}Pr{sub 0.275}Ca{sub 0.375}MnO{sub 3} above and below the Curie temperature. By measuring the resonance profile of the scattered x-rays at different values of q, we disentangle the contributions of orbital order and antiferromagnetism to the scattering signal above the Curie temperature. Below the Curie temperature, we see no signal from orbital order, and only antiferromagnetism coexists with the dominant ferromagnetic metallic phase.
Date:
July 25, 2012
Creator:
Burkhardt, Mark H.; Hossain, M.A.; Sarkar, S.; Achkar, A.J.; Hawthorn, D.G.; Sutarto, R. et al.
Object Type:
Article
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 207, Ed. 1 Wednesday, January 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 249, Ed. 1 Sunday, March 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 271, Ed. 1 Wednesday, April 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 290, Ed. 1 Friday, May 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 39, Ed. 1 Wednesday, July 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 83, Ed. 1 Tuesday, September 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 106, Ed. 1 Thursday, October 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 128, Ed. 1 Sunday, November 25, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 25, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Mount Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 139, No. 13, Ed. 1 Thursday, October 25, 2012
Weekly newspaper from Mount Vernon, Texas that includes local, state and national news along with advertising.
Date:
October 25, 2012
Creator:
Bush-Reves, Lillie
Object Type:
Newspaper
System:
The Portal to Texas History
Graduate Artist Certificate Recital: 2012-11-25 - Ying Cai, piano
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Graduate Artist Certificate in Music Performance.
Date:
November 25, 2012
Creator:
Cai, Ying (Pianist)
Object Type:
Sound
System:
The UNT Digital Library
The Monitor (Mabank, Tex.), Vol. 39, No. 21, Ed. 1 Thursday, October 25, 2012
Semi-weekly newspaper from Mabank, Texas that includes local Cedar Creek Lake area, state and national news along with extensive advertising.
Date:
October 25, 2012
Creator:
Cantrell, Pearl
Object Type:
Newspaper
System:
The Portal to Texas History
The Monitor (Mabank, Tex.), Vol. 39, No. 30, Ed. 1 Sunday, November 25, 2012
Semi-weekly newspaper from Mabank, Texas that includes local Cedar Creek Lake area, state and national news along with extensive advertising.
Date:
November 25, 2012
Creator:
Cantrell, Pearl
Object Type:
Newspaper
System:
The Portal to Texas History
Clearwater and Wineskin Sub-CAU Flow and Transport Models
None
Date:
July 25, 2012
Creator:
Carle, S F
Object Type:
Report
System:
The UNT Digital Library
Rare Plant Monitoring and Restoration at the Lawrence Livermore National Laboratory Experimental Test Site, Site 300, Project Progress Report 2007 through 2011
None
Date:
September 25, 2012
Creator:
Carlsen, T M; Paterson, L E; Alfaro, T M & Gregory, S D
Object Type:
Report
System:
The UNT Digital Library
A Comparison of "Total Dust" and Inhalable Personal Sampling for Beryllium Exposure.
In 2009, the American Conference of Governmental Industrial Hygienists (ACGIH) reduced the Beryllium (Be) 8-hr Time Weighted Average Threshold Limit Value (TLV-TWA) from 2.0 {micro}g/m{sup 3} to 0.05 {micro}g/m{sup 3} with an inhalable 'I' designation in accordance with ACGIH's particle size-selective criterion for inhalable mass. Currently, per the Department of Energy (DOE) requirements, the Lawrence Livermore National Laboratory (LLNL) is following the Occupational Health and Safety Administration (OSHA) Permissible Exposure Limit (PEL) of 2.0 {micro}g/m{sup 3} as an 8-hr TWA, which is also the 2005 ACGIH TLV-TWA, and an Action Level (AL) of 0.2 {micro}g/m{sup 3} and sampling is performed using the 37mm (total dust) sampling method. Since DOE is considering adopting the newer 2009 TLV guidelines, the goal of this study was to determine if the current method of sampling using the 37mm (total dust) sampler would produce results that are comparable to what would be measured using the IOM (inhalable) sampler specific to the application of high energy explosive work at LLNL's remote experimental test facility at Site 300. Side-by-side personal sampling using the two samplers was performed over an approximately two-week period during chamber re-entry and cleanup procedures following detonation of an explosive assembly containing Beryllium (Be). …
Date:
April 25, 2012
Creator:
Carter, C. M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Iron-Nitride Alloy Magnets
Advanced Research Projects Agency-Energy project sheet summarizing general information about the Rare Earth Alternatives in Critical Technologies (REACT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses the development of a magnetic iron-nitride alloy as part of the "Transformation Enabled Nitride Magnets Absent Rare Earths (TEN Mare)" project.
Date:
May 25, 2012
Creator:
Case Western Reserve University
Object Type:
Text
System:
The UNT Digital Library
Student Recital: 2012-03-25 - Chad Willis Jazz Orchestra
Access:
Use of this item is restricted to the UNT Community
A student recital performed at the UNT College of Music Voertman Hall.
Date:
March 25, 2012
Creator:
Chad Willis Jazz Orchestra
Object Type:
Sound
System:
The UNT Digital Library
[Apogee Stadium, view from I-35, 1]
Photograph of Apogee Stadium on the University of North Texas campus, taken from across Interstate 35. The northwest corner of the stadium can be seen on the left side of the image, next to a large sign that reads, "APOGEE STADIUM // UNT." Cars are driving east on the highway and access road. An empty field is visible in the foreground.
Date:
February 25, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
[Apogee Stadium, view from I-35, 2]
Photograph of Apogee Stadium on the University of North Texas campus, taken from across Interstate 35. The north side of the stadium can be seen on the left side of the image, behind a large sign that reads, "APOGEE STADIUM // UNT." Cars are driving east on the highway and access road. An empty field is visible in the foreground.
Date:
February 25, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
[S. Bonnie Brae Street sign]
Photograph of the S. Bonnie Brae St. sign, taken from W. Prairie St in Denton, Texas. The sign is visible in the center of the photograph, across the street from the TX DOT Engineering and Manufacturing Facility. A car is driving south on Bonnie Brae St.
Date:
February 25, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
[Fouts Field and Apogee Stadium entrances, 1]
Photograph of the entrances of Fouts Field and Apogee Stadium on the University of North Texas campus. The Fouts Field entrance is visible on the left side of the photograph. Apogee Stadium's north entrance can be seen across I-35 to the right. A sign in the center of the photograph reads, "UNIVERSITY OF NORTH TEXAS / HOME OF THE MEAN GREEN // Denny's / University Dr."
Date:
February 25, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
[Fouts Field and Apogee Stadium entrances, 2]
Photograph of the entrances of Fouts Field and Apogee Stadium on the University of North Texas campus. The Fouts Field entrance is visible on the left side of the photograph. Apogee Stadium's north entrance can be seen across I-35 to the right. A sign in the center of the photograph reads, "UNIVERSITY OF NORTH TEXAS / HOME OF THE MEAN GREEN // Which Wich."
Date:
February 25, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
[UNT Coliseum, view from W Highland St]
Photograph of the UNT Coliseum (Super Pit) taken from W Highland St. The building can be seen on the left side of the photograph, partially blocked from view by a row of trees on the lawn. Cars are parked in street parking spaces to the right of the building.
Date:
February 25, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library