4 papers
Measurement and analysis of the Doppler broadened energy spectra of annihilation gamma radiation originating from clean and adsorbate-covered surfaces
S. Lotfimarangloo, V. A. Chirayath, P. A. Sterne +8
We present measurements and theoretical modeling demonstrating the capability of Doppler Broadened annihilation gamma Spectroscopy (DBS) to provide element-specific information fro…
Design and fabrication guide for a new metamaterial as an absorber of visible light with exceptionally high absorption efficiency
Vivek Khichar, Nader Hozhabri, Ali R. Koymen
We present a guide for the design and fabrication of a CMOS-compatible metamaterial microstructure as an absorber of visible light with exceptionally high absorption efficiency (~…
Giant magnetic broadening of ferromagnetic resonance in a GMR Co/Ag/Co/Gd quadlayer
Sezen Demirtas, Ali R. Koymen, Myron B. Salamon
Both magnetic-resonance damping and the giant magnetoresistance effect have been predicted to be strongly affected by the local density of states in thin ferromagnetic films. We em…
Ferromagnetic Resonance of Co/Gd and Co/Tb Multilayers
S. Demirtas, I. Harward, R. E. Camley +5
The in-plane dynamics of ferrimagnetic Co/Gd multilayers are investigated by means of ferromagnetic resonance, magneto-optical Kerr effect and SQUID magnetometry. The power absorbe…