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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Miller, Joel Steven; Epstein, Arthur J. | Direct evidence of electron spin polarization from an organic-based magnet: [FeII(TCNE)(NCMe)2][FeIII Cl4] | Direct evidence of an organic-based magnet with a finite electron spin polarization at the Fermi edge is shown from spin-resolved photoemission of the [FeII(TCNE)(NCMe)2][FeIIICl4] organic-based magnet. The 23% majority-based spin polarization at the Fermi edge is observed at 80 K in zero applied fi... | Organic-based magnets; Electron spin polarization | 2009-05 |
| 2 |
 | Boehme, Christoph | Experimental discrimination of geminate and non-geminate recombination in a-Si:H | A study of charge-carrier recombination in intrinsic hydrogenated amorphous silicon (a-Si:H) is presented using pulsed electrically and pulsed optically detected magnetic-resonance spectroscopies in order to measure the influence of spin-dependent recombination on photoluminescence (PL) and photoc... | Geminate recombination | 2009-05 |
| 3 |
 | Scarpulla, Michael | Ferromagnetic resonance investigation of magnetic anisotropy in Ga1-xMnxAs synthesized by ion implantation and pulsed laser melting | A systematic investigation of ferromagnetic resonance (FMR) was carried out on Ga1−xMnxAs layers synthesized by Mn ion implantation into GaAs followed by pulsed laser melting. Angular and temperature dependences of FMR were measured on layers prepared on GaAs (001), (110), and (311) surfaces. The ... | Magnetic anisotropy; Ga1−xMnxAs; Gallium manganese arsenide | 2009-12 |
| 4 |
 | Boehme, Christoph | Influence of disorder on electrically and optically detected electron spin nutation | A numerical study of the influence of disorder in semiconductors on spin-Rabi nutation observed with pulsed electrically or optically detected magnetic-resonance techniques (pEDMR and pODMR, respectively ) is presented. It is shown that transient nutation signals of disordered spin ensembles differ ... | Electron spin nutations | 2009-02 |
| 5 |
 | Lupton, John Mark | Intermittency in second-harmonic radiation from plasmonic hot spots on rough silver films | Surface enhancement of electromagnetic fields in plasmonic hot spots formed on rough silver films enables the observation of second-harmonic generation (SHG) from single metal nanoparticles. Nonlinear light scattering from these particles exhibits blinking in analogy to luminescence from single qu... | Harmonic radiation; Plasmonic hot spots; Second harmonic generation; SHG | 2009-10 |
| 6 |
 | Boehme, Christoph | Observation of precursor pair formation of recombining charge carriers | An experiment is presented which allows the observation of charge-carrier pair formation that precedes electronic transitions such as spin-dependent recombination or spin-dependent transport. It is based on an electrically detected magnetic-resonance-induced rotary echo sequence. The experimental de... | Charge carriers | 2009-07 |
| 7 |
 | Vardeny, Zeev Valentine | Optical probes of ∏-conjugated polymer blends with strong acceptor molecules | We used a variety of optical probes to study the primary and long-lived photoexcitations in blends of polyphenylene-vinylene derivative poly(2-methoxy-5(2'-ethyl)hexoxy-phenylenevinylene) (MEH-PPV) with various concentrations of a strong electron-acceptor molecule 2,4,7-trinitro-9-fluorenone (TNF... | pi-conjugated polymers; pi-conjugated polymer blends; Acceptor molecules; Optical probes; Photoexcitations; MEH-PPV; Electron acceptors; Organic solar cells | 2009-05 |
| 8 |
 | Vardeny, Zeev Valentine | Ultrafast dynamics in metallic and semiconducting carbon nanotubes | Transient polarized pump/probe transmission changes upon pulse photoexcitation at 1.6 eV were measured in chiral enriched carbon nanotubes ensembles of both metallic and semiconductor characters, in a very broad probe spectral range from mid-IR to visible, combining several ultrafast laser systems... | 2009-11 |
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