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  • 1
    Electronic Resource
    Electronic Resource
    Temperature-compensated 2:17-type permanent magnets with improved magnetic properties (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 4975-4977 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Computer programs have been developed to predict temperature coefficients of saturation magnetization for (Sm1−xGdx)2Tm17 magnets with higher Fe content from temperature-dependent magnetic properties of single rare-earth compositions. Very good agreement was obtained between the calculated and measured data. The composition Sm0.54Gd0.46 (Co0.63Fe0.29Cu0.06Zr0.02)7.69 exhibits a nearly zero temperature coefficient of magnetization from −60 to 150 °C. Its maximum energy product remains 16–17 MGOe in the temperature range of 20–200 °C. A room-temperature energy product of 19 MGOe was attained for the composition Sm0.55Gd0.45(Co0.608Fe0.316Zr0.02)7.72.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.344721
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  • 2
    Electronic Resource
    Electronic Resource
    Improved cross-talk performance from multilayer longitudinal media using a Hall head : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 6229-6231 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new concept for improving the cross-talk performance of flux sense heads is proposed and is experimentally verified. The concept makes use of a new longitudinal media and a shielded flux sense Hall head. The new longitudinal media uses a soft magnetic layer separated by a nonmagnetic layer underneath the hard magnetic layer. The Hall head consists of a three pole structure. The outer two magnetic poles are the write poles which also act as a shield for the center pole during read. For a carefully selected thickness of the soft magnetic layer and the nonmagnetic layer, a significant reduction in fringing at low frequencies is observed. Using a 3.9-μm-wide Hall head on new longitudinal media, the fringe width at 0.5F[4F of 30 K flux reversal per in. (KFRI)] is reduced by 51% compared to the fringe width on a conventional media. This concept entails a loss of on-track amplitude. The loss of amplitude is significantly less at high frequencies compared to low frequencies, thereby improving the head resolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.352706
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  • 3
    Electronic Resource
    Electronic Resource
    Magnetic properties and microstructure of light rare earth substituted 2:17 magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990 (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 5853-5855 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Partial substitution of light rare earths (LRE) for Sm in 2:17 magnets improves the remanence, maximum energy product and the loop squareness without affecting their Curie temperature and the temperature dependence of 4πMs. Uniform, single-phased microstructures were obtained for LRE substituted magnets after heat treatment. Heat treated metallographic specimens revealed striations on the etched surfaces parallel within each grain and perpendicular to the c axis of the magnet alloy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.348937
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  • 4
    Electronic Resource
    Electronic Resource
    Observation of correlation effects in zero kinetic energy electron spectra near the N1s and C1s thresholds in N2, CO, C6H6, and C2H4 (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 6096-6102 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Zero kinetic energy (ZKE) spectra of N2, CO, C2H4, and C6H6 were taken across the N1s (N2) and C1s ionization thresholds. Discrete resonances at subthreshold photon energies were observed and were found to become more intense as threshold is approached relative to the same peaks in absorption spectra. For N2 the satellite/main line branching ratios at threshold are: 11(1)% for the 419.7(1) eV binding energy satellite, and 2.3(1.0)% for the 426.5(1) eV binding energy satellite. For CO, the branching ratio for the 304.6(1) eV binding energy satellite is 15(2)% at its threshold. Branching ratios at threshold are also determined for the satellites of C6H6 and C2H4. Decay characteristics and assignments of the continuum features of C6H6 and C2H4 are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455425
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  • 5
    Electronic Resource
    Electronic Resource
    Resonant processes above the carbon 1s ionization threshold in benzene and ethylene (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 3004-3009 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Resonant photoemission has been studied above the carbon 1s ionization thresholds in gas-phase benzene and ethylene. The experimental data for both molecules include relative partial cross section and asymmetry-parameter measurements for the C 1s main line and asymmetry-parameter measurements for one C 1s shake-up satellite in each system. Resonances above the C K edge have been analyzed on the basis of their decay to either the C 1s main line or valence-hole states, and have been tentatively assigned as either shape resonances or doubly excited states according to their observed one-electron or many-electron decay, respectively. The importance of determining the resonant behavior of all available photoemission channels in the proximity of a resonance is thus illustrated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455902
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  • 6
    Electronic Resource
    Electronic Resource
    Investigation of intermittent magnetic flux in the auroral zones with kilometer radiation (AKR) (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 625-630 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: On the basis of the nonlinear equations for self-generated magnetic fields, it is numerically shown that the magnetic fields self-generated are instable and may collapse, resulting in spatially highly intermittent flux fragment. Numerical results show that the enhanced magnetic flux has a strength about up to 10−2 Gauss in range about around 250–350 km in auroral zones with kilometric radiation (AKR), which correspond to estimated values in both the strength and characteristic scale by Mckean et al. [J. Geophys. Res. [Oceans] 96, 21055 (1991)]. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1337067
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  • 7
    Electronic Resource
    Electronic Resource
    Self-generated magnetic field by transverse plasmons in laser-produced plasma (2000)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 7 (2000), S. 3405-3412 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Quasisteady magnetic fields could be generated in laser-produced plasmas with high-frequency electromagnetic radiation through wave–wave and wave–particle interactions in the vicinity of the critical point. The behavior of self-generated magnetic fields can be described by nonlinear coupling equations. It is analytically indicated that self-generated magnetic fields are modulationally unstable with respect to the uniform state of a plasma; such an instability would localize the magnetic fields within narrow regions near the critical surface. The theory is supported by a detailed comparison with experiments in laser-produced plasmas. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.874204
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  • 8
    Electronic Resource
    Electronic Resource
    The free electron laser–peniotron hybrid: Physics and features (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 3488-3493 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The free electron laser–peniotron hybrid is studied. It is shown by computer simulations that the free electron laser–peniotron hybrid, with the synchronous condition ω−(kw+k(parallel))v(parallel)−ωc≈0, is a strong interaction, and has an efficiency as high as that of the peniotron. The interaction of the free electron laser–peniotron hybrid is compared with that of the free electron laser–cyclotron hybrid. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871130
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  • 9
    Electronic Resource
    Electronic Resource
    Longitudinal and transverse Hall resistivity of epitaxial SrRuO3 films (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 5792-5794 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the longitudinal ρxx and transverse Hall ρxy resistivities of epitaxial SrRuO3 (SRO) under varied applied fields. The Hall resistivity, ρxy, is proportional to 1/(T−Tc) in the paramagnetic state of SRO films, where Tc is the asymptotic Curie temperature. The Lorentz resistivity Δρ(H)Lorentz in a fixed magnetic field in the ferromagnetic regime of SRO films is proportional to A(1−T/Tc)p with p∼0.5. RH is positive for T〉125 K and changes sign at T∼125 K for SRO films. The RH remains negative down to low temperatures. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.369921
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  • 10
    Electronic Resource
    Electronic Resource
    Subgap excitation of defect band photoluminescence in phosphorous doped hydrogenated amorphous silicon (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 4587-4591 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This article presents a study of the effect of temperature on the defect band photoluminescence (PL) of moderately phosphorous doped amorphous silicon thin films deposited by magnetron sputtering. We have identified two types of recombination processes responsible for the observed temperature dependence of the defect PL band produced by subgap excitation. One of the processes is similar to that observed in intrinsic hydrogenated amorphous silicon and may originate from the recombination of carriers at band tail states and dangling bonds. The donor-defect pairs at nearest neighbor sites may be responsible for the second recombination process. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363441
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