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Creator | Title | Description | Subject | Date |
1 |
 | Saam, Brian | 3He spin exchange cells for magnetic resonance imaging | We present a protocol for the consistent fabrication of glass cells to provide hyperpolarized (HP) 3He for pulmonary magnetic resonance imaging. The method for producing HP 3He is spin-exchange optical pumping. The valved cells must hold of order 1 atm.L of gas at up to 15 atm pressure. Because char... | 3He; Spin exchange cells; Hyperpolarized 3He; Pulmonary magnetic resonance imaging; Spin-exchange optical pumping; SEOP; Glass cells | 2002 |
2 |
 | Stringfellow, Gerald B. | Influence of Sb, Bi, Tl, and B on the incorporation of N in GaAs | GaAs:N is an interesting material for many devices due to its unique compositional variation of band gap. Small amounts of N lead to a strong decrease in band gap energy as well as lattice constant. The further addition of In or Sb leads to quaternary alloys with band gap energies below 1.4 eV latti... | Antimony; Gallium Arsenide; Nitrogen | 2002 |
3 |
 | Miller, Joel Steven; Epstein, Arthur J. | Optical control of magnetic order in molecule-based magnet Mn(TCNE)x.y(CH2Cl2) | Studies of photoinduced magnetization and photoinduced absorption in molecule-based magnet Mn(TCNE)x•y(CH2Cl2) (x=2, y-0.8, TCNE=tetracyanoethylene) are reported. Optical excitation in the blue region of spectrum leads to increased magnetization, accompanied by changes in the electronic spectrum... | Spectrum; Absorption; Illumination | 2002 |
4 |
 | Liu, Feng | Step-induced magnetic-hysteresis anisotropy in ferromagnetic thin films | We investigate the quasistatic magnetic hysteresis of ferromagnetic thin films grown on a vicinal substrate, using Monte Carlo simulations within a two-dimensional XY model. Intrinsic in-plane anisotropy is assigned to surface sites according to their local symmetry. The simulated hysteresis loops s... | Magnetic hysteresis; Ferromagnetic thin films; Step-induced | 2002 |