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Journals

Characterization of InGaN quantum disks in GaN nanowires

Author(s)
Alexana Roshko, Roy H. Geiss, John B. Schlager, Matthew D. Brubaker, Kristine A. Bertness, Norman A. Sanford, Todd E. Harvey
Catalyst-free GaN nanowires with InGaN quantum disks (QDs) were characterized by scanning/transmission electron microscopy (S/TEM) and photoluminescence. A...

Liquidlike Correlations in Single-Crystalline Y2Mo2O7: An Unconventional Spin Glass

Author(s)
H. J. Silverstein, K. Fritsch, F. Flicker, A. M. Hallas, Jason S. Gardner, Yiming Qiu, G. Ehlers, A. T. Savici, Z. Yamani, K. A. Ross, B. D. Gaulin, M. J. P. Gingras, J. A. M. Paddison, K. Foyevtsova, R. Valenti, F. Hawthorne, C. R. Wiebe, H. D. Zhou
The phenomenon of melting is among one of the most well studied phase transitions in condensed matter science. Even though the process is well-understood is a...

Engineering Plant Cell Walls: Tuning Lignin Monomer Composition for Deconstructable Biofuels Feedstocks or Resilient Biomaterials

Author(s)
Peter Ciesielski, Michael Resch, Barron Hewetson, Jason Killgore, Alexandra Curtin, Nick Anderson, Ann Chiaramonti Debay, Donna C. Hurley, Aric Sanders, Michael Himmel, Clint Chapple, Nathan Mosier, Bryon Donohoe
Advances in genetic manipulation of the biopolymers that compose plant cell walls will facilitate more efficient production of biofuels and chemicals from...

Laser-assisted atom probe tomography of MBE grown GaN nanowire heterostructures

Author(s)
Norman A. Sanford, Paul T. Blanchard, Matthew D. Brubaker, Kristine A. Bertness, John B. Schlager, R Kirchofer, David R. Diercks, Brian Gorman
Laser-assisted atom probe tomography (L-APT) was performed on GaN nanowires (NWs) and axial GaN/InGaN nanowire heterostructures. All samples were grown by MBE...

Dipole-Dipole Interactions in TiOPc Adlayers on Ag

Author(s)
Steven W. Robey, Xianjie Liu, Yinying Wei, Janice E. Reutt-Robey
The molecular organization in layers of a polar phthalocyanine, titanyl phthalocyanine (TiOPc), on the Ag(110) surface was studied with scanning tunneling...

Detection of 3D Interconnect Bonding Voids by IR Microscopy

Author(s)
Jonny H?glund, Zoltan Kiss, Gyorgy Nadudvari , Zsolt Kovacs, Szabolcs Velkei, Moore Chris, Victor H. Vartanian, Richard A. Allen
There are a number of factors driving 3D integration including reduced power consumption, RC delay, and form factor as well as increased bandwidth. However...

Top-Down Fabrication of Large-Area GaN Micro and Nano Pillars

Author(s)
Albert Davydov, Ratan K. Debnath, B. Wen, Dipak Paramanik, Abhishek Motayed, M. King
Large-area gallim nitride (GaN) nanopillars (NPs) arrays were fabricated by plasma etching of lithographically patterned GaN thin-film grown on Si substrate...

Complex Structures of Different CaFe2As2 Samples

Author(s)
Bayrammurad Saparov, Claudia Cantoni, Minghu Pan, Thomas C. Hogan, William D. Ratcliff, Stephen D. Wilson, Katharina Fritsch, Bruce D. Gaulin, Athena S. Sefat
We use temperature-dependent X-ray and neutron diffraction, low-temperature scanning tunneling microscopy, and room-temperature scanning-transmission electron...

In situ temperature measurements for selective epitaxy of GaN nanowires

Author(s)
Kristine A. Bertness, Matthew D. Brubaker, Todd E. Harvey, Shannon M. Duff, Aric W. Sanders, Norman A. Sanford
We demonstrate with spatially resolved, in situ temperature measurements and ex situ reflectance measurements that differences in appearance for masked and...

Hysteresis in Quantized Superfluid Atomtronic Circuit

Author(s)
Stephen P. Eckel, Jeffrey Lee, Fred Jendrzejewski, Noel Murray, Charles W. Clark, Christopher J. Lobb, William D. Phillips, Edwards Mark, Gretchen K. Campbell
Atomtronics is an emerging interdisciplinary field that seeks new functionality by creating devices and circuits where ultra-cold atoms play a role analogous to...

Role of Random Electric Fields in Relaxors

Author(s)
Daniel P. Phelan, Christopher Stock, Jose Rodriguez Rivera, Songxue Chi, Juscelino Leao, Xifa Long, Yujuan Xie, Alexei A. Bokov, Zuo-Guang Ye, Panchapakesan Ganesh, Peter M. Gehring
Pb(Zr 1¿xTi x)O 3 (PZT) and Pb[(Mg 1/3Nb 2/3) 1¿xTi x]O 3 (PMN-xPT) are complex lead-oxide perovskites that display exceptional piezoelectric properties for...

Supercontinuum generation in an on-chip silica waveguide

Author(s)
Scott A. Diddams, Dong Yoon Oh, David Sell, Hansuek Lee, Ki Youl Yang, Kerry J. Vahala
Supercontinuum generation is demonstrated in an on-chip silica spiral waveguide by launching 180-fs pulses from an optical parametric oscillator at the center...
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