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Competing Orders in Functional Materials and their Applications
from
Monday, 3 June 2013 (08:00)
to
Wednesday, 5 June 2013 (18:00)
Monday, 3 June 2013
09:00
Registration
Registration
09:00 - 09:50
Room: 122:026
09:50
Message from the KTH Director
-
Peter Gudmundson
Message from the KTH Director
Peter Gudmundson
09:50 - 10:00
Room: 122:026
10:00
KTH Partnerships
-
Björn Birgisson
(
KTH
)
KTH Partnerships
Björn Birgisson
(
KTH
)
10:00 - 10:20
Room: 122:026
10:20
Coffee Break
Coffee Break
10:20 - 11:00
Room: 122:026
11:00
Opportunities for Mesoscale Science: A MaRIE Perspective
-
John Sarrao
(
Los Alamos
)
Opportunities for Mesoscale Science: A MaRIE Perspective
John Sarrao
(
Los Alamos
)
11:00 - 11:25
Room: 122:026
Mesoscale science embraces the regime where atomic granularity and quantization of energy yield to continuous matter and energy, collective behavior reaches its full potential, defects, fluctuations and statistical variation emerge, interacting degrees of freedom create new phenomena, and homogeneous behavior gives way to heterogeneous structure and dynamics.1 Mesoscale science builds on the foundation of nanoscale knowledge and tools that the community has developed over the last decade and continues to develop. Mesoscale phenomena offer a new scientific opportunity: designing architectures and interactions among nanoscale units to create new macroscopic behavior and functionality. MaRIE, for Matter-Radiation Interactions in Extremes, is Los Alamos National Laboratory’s facility concept for addressing decadal challenges in materials, especially in extreme environments, through a focus on predicting and controlling materials microstructure at the mesoscale. MaRIE will be an international user facility and will enable unprecedented in-situ, transient measurements of “real” mesoscale materials in relevant extremes, especially dynamic loading and irradiation extremes. Concurrent advances in multi-scale modeling and computational resources hold great promise for rapid progress toward these goals. In this presentation we will discuss both the science questions that motivate the mesoscale opportunity and how a particular facility, MaRIE, can address a subset of these challenges. Importantly, theoretical and computational advances that enable effective data utilization are of comparable significance and challenge as the acquisition of said data. Our recent experience in attempting to pursue this vision of prediction and control at the mesoscale will form a central element of the presentation.
11:25
KTH Materials Platform
-
Ulf Karlsson
(
KTH
)
KTH Materials Platform
Ulf Karlsson
(
KTH
)
11:25 - 11:50
Room: 122:026
11:50
Lunch
Lunch
11:50 - 13:00
Room: 122:026
13:00
Experimental Capabilities of Highe Magnetic Fields at NHMFL Los Alamos
-
Charles Mielke
(
LANL
)
Experimental Capabilities of Highe Magnetic Fields at NHMFL Los Alamos
Charles Mielke
(
LANL
)
13:00 - 13:40
Room: 122:026
Magnetic fields have become an indispensable tool for science to better understand and manipulate ground states of electronic materials. As magnetic field intensities are increased the quantum nature of these materials become exponentially more likely to be observed and this is but one of the drivers to go further in high magnetic field generation. At the Los Alamos branch of the National High Magnetic Field Laboratory we have significant efforts in extremely high magnetic field generation and experimentation. In direct opposition with our efforts are the tremendous electro-mechanical forces exerted on our magnets. Challenges in magnetic field generation and research will be presented. Various method of pulsed high magnetic field generation and experimentation capabilities will be reviewed, including our recent "World Record" for the highest non-destructive magnetic field.
13:40
Materials Modeling at KTH
-
Levente Vitos
(
KTH
)
Materials Modeling at KTH
Levente Vitos
(
KTH
)
13:40 - 14:20
Room: 122:026
14:20
Materials Modeling
-
Avadh Saxena
(
LANL
)
Materials Modeling
Avadh Saxena
(
LANL
)
14:20 - 15:00
Room: 122:026
15:00
Frontiers in AFM Imaging
-
David Haviland
(
KTH
)
Frontiers in AFM Imaging
David Haviland
(
KTH
)
15:00 - 15:40
Room: 122:026
15:40
Nanoscale SC
-
Mikael Fogelström
(
Chalmers
)
Nanoscale SC
Mikael Fogelström
(
Chalmers
)
15:40 - 16:20
Room: 122:026
16:20
Round Table Discussion
Round Table Discussion
16:20 - 17:40
Room: 122:026
18:30
Dinner at Gondolen
Dinner at Gondolen
18:30 - 20:30
Room: 122:026
Tuesday, 4 June 2013
09:20
Nuclear Reactor Safety
-
Sevostian Bechta
(
KTH
)
Nuclear Reactor Safety
Sevostian Bechta
(
KTH
)
09:20 - 10:00
Room: 122:026
10:00
Next Generation Nuclear Materials Management
-
Michael Miller
(
LANL
)
Next Generation Nuclear Materials Management
Michael Miller
(
LANL
)
10:00 - 10:40
Room: 122:026
Nuclear energy continues to play a significant role in response to the increasing global demand for electricity, without adding to the accumulation of greenhouse gases. It is however, not without risks that must be properly managed. A key factor in the assurance of peaceful use in the deployment of nuclear power is robust nuclear materials management. The U.S. Department of Energy – Office of Nuclear Energy and the National Nuclear Security Agency are actively engaged in a broad-based program of research to detect, control, account for, and secure nuclear materials and to provide analysis and assessment tools. A review of these programs will be given, with particular emphasis on areas where advanced materials can play a role as well as the development of analyses and tools to support proliferation and terrorism risk assessment and used fuel management.
10:40
Coffee break
Coffee break
10:40 - 11:10
Room: 122:026
11:10
Material Development and Testing for High Dose Reactor Applications
-
Stuart Maloy
(
LANL
)
Material Development and Testing for High Dose Reactor Applications
Stuart Maloy
(
LANL
)
11:10 - 11:50
Room: 122:026
The Fuel Cycle Research and Development program is investigating methods of dealing with transuranics in various fuel cycle options and is supporting the development of next generation Light Water Reactor (LWR) fuels. To achieve this goal, new fuels and cladding materials must be developed and tested to high burnup levels (e.g. >20%) and under accident conditions. To achieve such high burnup levels the fast reactor core materials (cladding and duct) must be able to withstand very high doses (greater than 200 dpa) while in contact with the coolant and the fuel. Thus, these materials must withstand radiation effects that promote low temperature embrittlement, radiation induced segregation, high temperature helium embrittlement, swelling, irradiation creep, corrosion with the coolant, and chemical interaction with the fuel (FCCI). <br><br> To develop and qualify materials to a total fluence greater than 200 dpa requires development of advanced alloys and irradiations in fast reactors to test these alloys. Test specimens of ferritic/martensitic alloys (T91/HT-9) previously irradiated in the FFTF reactor up to 210 dpa at a temperature range of 350-700°C are presently being tested. This includes analysis of a duct made of HT-9 after irradiation to a total dose of 155 dpa at temperatures from 370 to 510°C. Advanced radiation tolerant materials are also being developed to enable the desired extreme fuel burnup levels. Specifically, coatings and liners are being developed to minimize FCCI, and research is underway to fabricate large heats of radiation tolerant oxide dispersion steels with homogeneous oxide dispersions. Recent progress in high dose irradiated materials testing and advanced radiation resistant materials development will be presented.
11:50
TBA
-
Nils Sandberg
(
SSM
)
TBA
Nils Sandberg
(
SSM
)
11:50 - 12:30
Room: 122:026
12:30
Lunch
Lunch
12:30 - 13:30
Room: 122:026
13:30
Sweden and the Nuclear Security Summit Process
-
J. Lodding
(
Nonprolif. Dept., Swedish Ministry for Foreign Affairs
)
Sweden and the Nuclear Security Summit Process
J. Lodding
(
Nonprolif. Dept., Swedish Ministry for Foreign Affairs
)
13:30 - 14:10
Room: 122:026
14:10
Overview of the Center for Nonlinear Studies at Los Alamos
-
Aric Hagberg
(
LANL
)
Overview of the Center for Nonlinear Studies at Los Alamos
Aric Hagberg
(
LANL
)
14:10 - 14:50
Room: 122:026
The Center for Nonlinear Studies (CNLS) at Los Alamos National Laboratory supports and promotes research in interdisciplinary science. I will give an overview of how the CNLS integrates postdocs, students, visitors, and conferences to create a vibrant research center. I will highlight some of the latest results from the postdoctoral program and give a perspective on collaboration opportunities.
14:50
International Programs in Nuclear Physics at KTH
-
Ramon Wyss
(
KTH
)
International Programs in Nuclear Physics at KTH
Ramon Wyss
(
KTH
)
14:50 - 15:30
Room: 122:026
15:30
Coffee break
Coffee break
15:30 - 16:10
Room: 122:026
16:10
Modeling of Cu Corrosion
-
Anatoly Belonoshko
(
KTH
)
Anders Rosengren
(
KTH
)
Modeling of Cu Corrosion
Anatoly Belonoshko
(
KTH
)
Anders Rosengren
(
KTH
)
16:10 - 17:10
Room: 122:026
17:10
Public Outreach and Sustainable Nuclear Energy
-
Galina Balatsky
(
LANL
)
Public Outreach and Sustainable Nuclear Energy
Galina Balatsky
(
LANL
)
17:10 - 17:30
Room: 122:026
This presentation is about the importance of public outreach for a sustainable nuclear energy program. The Fukushima-Daichii incident of 2011 and its aftermath changed the course of the “Nuclear Renaissance” and brought back skepticism about nuclear energy and its future. Some countries decided to discontinue or slow down their nuclear energy generating plans while others remain committed to nuclear energy. The talk underscores the linkage of media reporting and public opinion on policy changes.
17:30
Round Table Discussion
Round Table Discussion
17:30 - 18:00
Room: 122:026
18:00
Reception at AlbaNova
Reception at AlbaNova
18:00 - 20:00
Room: 122:026
Wednesday, 5 June 2013
09:00
ARPES on Topological Insulators
-
Oscar Tjernberg
(
KTH
)
ARPES on Topological Insulators
Oscar Tjernberg
(
KTH
)
09:00 - 09:40
Room: 122:026
09:40
Spin Fluctuations and the Peak-Dip-Hump Structure in the Photoelectron Spectrum of Actinide Metals
-
Matthias Graf
(
LANL
)
Spin Fluctuations and the Peak-Dip-Hump Structure in the Photoelectron Spectrum of Actinide Metals
Matthias Graf
(
LANL
)
09:40 - 10:20
Room: 122:026
We present first-principles based multiband spin-fluctuation calculations within the random-phase approximation for four isostructural intermetallic actinides, namely the superconductors PuCoIn5, PuCoGa5, PuRhGa5, and the paramagnet UCoGa5. The results show that a strong peak in the spin-fluctuation dressed self-energy is present around 0.5 eV in all materials, which is mostly created by 5f electrons. These fluctuations are coupled to electrons, which gives rise to the peak-dip-hump structure in the spectral function, characteristic of the coexistence of itinerant and localized electronic states. Our results are in quantitative agreement with available photoelectron spectra on PuCoGa5 [1] and UCoGa5 [2]. Our self-consistent intermediate Coulomb coupling GW calculations of the self-energy are performed within the fluctuation exchange approximation [3,4] using first-principles electronic structure input obtained from the density functional theory within the generalized gradient approximation (GGA). We find that the effective coupling of electrons to spin fluctuations creates a dip in the single-particle excitations due to strong scattering between spin-orbit split states. The lost spectral weight (dip) in the spectral function is distributed partially to the renormalized itinerant states at the Fermi level (peak), as well as to the strongly localized incoherent states at higher energy (hump). The coherent states at the Fermi level can still be characterized as Bloch waves, though strongly renormalized, whereas the incoherent electrons are localized in real space exhibiting the dispersionless hump structure. We will discuss the impact of our first-principles based intermediate coupling model for calculating electronic hot spots in the spectral function and the multiband spin-fluctuation spectrum relevant for electric and thermal transport in both actinide metals and nuclear fuel materials. This work was supported by the U.S. DOE under Contract No. DE-AC52-06NA25396 through the Office of Basic Energy Sciences (BES) and the LDRD Program at LANL. We acknowledge a NERSC computing allocation of the U.S. DOE under Contract No. DE-AC02-05CH11231. <br><br> [1] T. Das, J.-X. Zhu, and M.J. Graf (2012), Phys. Rev. Lett. 108, 137001. <br>[2] T. Das, T. Durakiewicz, J.-X. Zhu, J.J. Joyce, J. L. Sarrao, and M.J. Graf (2012), Phys. Rev. X 2, 041012. <br>[3] R.S. Markiewicz, T. Das, S. Basak, and A. Bansil (2010), J. Electron. Spectrosc. Relat. Phenom. 181, 23. <br>[4] T. Das, J.-X. Zhu, and M.J. Graf (2013), J. Materials Research 28, 659.
10:20
Coffee break
Coffee break
10:20 - 10:50
Room: 122:026
10:50
Spintronics at KTH, Spin Laser
-
Vladislav Korenivski
(
Stockholm University
)
Spintronics at KTH, Spin Laser
Vladislav Korenivski
(
Stockholm University
)
10:50 - 11:40
Room: 122:026
11:40
Superconducting Laser
-
Vladimir Krasnov
(
Stockholm University
)
Superconducting Laser
Vladimir Krasnov
(
Stockholm University
)
11:40 - 12:20
Room: 122:026
12:20
Lunch and Round Table Discussion at the AlbaNova Cafeteria
Lunch and Round Table Discussion at the AlbaNova Cafeteria
12:20 - 13:30
Room: 122:026