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SURFACE ELECTRON SPIN POLARIZATION OF THE PROPOSED HALF-METALLIC FERROMAGNET NICKEL - MANGANESE - ANTIMONYTAYLOR, KELLY JAY January 1987 (has links)
Electron capture spectroscopy (ECS) measures the surface electron spin polarization (ESP) by passing a deuteron ion beam very close to and grazing an atomically flat sample. Polarized electrons that are captured polarize the deuterons by the hyperfine interaction. The polarization of the deuterons is measured by the asymmetry of scattered alpha particles resulting from the nuclear reaction D(T,n)$\alpha$. On the proposed, half-metallic, half-semiconducting, ferromagnetic material, NiMnSb, electron capture spectroscopy measures a surface electron spin polarization (ESP) of +13%, establishing unambiguously that long-range, surface ferromagnetic order exists for this ternary alloy.
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362 |
THE EFFECTS OF A LARGE OSCILLATING FIELD IN MAGNETIC RESONANCE; A STUDY BY LOW FREQUENCY DOUBLE ELECTRON MUON RESONANCEZHU, QIUAN January 1986 (has links)
There has been a considerable amount of investigation, both theoretical and experimental, of how spin systems behave in magnetic resonance when the applied dc field and the rf oscillating field have comparable amplitudes. A technique called Double Electron Muon Resonance has recently been applied to fused quartz at low frequency enabling us to see directly how the spin precesses in perpendicular dc and rf magnetic fields of comparable strength. The precessional frequency spectra are in excellent agreement with predictions by numerical integration of the equations describing spin precession. Among the effects observed have been harmonic responses, Bloch-Siegert shifts and multi-quantum transitions.
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SOME ELECTRICAL PROPERTIES OF RADIOACTIVE CADMIUM SULFIDE FILMS IN VACUUMAND WITH ADSORBED HYDROGENHEARN, CHARLES LEE January 1963 (has links)
No description available.
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364 |
AN INVESTIGATION OF THE EFFECT OF UNIAXIAL STRESS ON THE SPIN-RESONANCE OF 3-POSITIVE ION OF CHROMIUM IN ALUMINUM OXIDEHEMPHILL, ROBERT BRADLEY January 1963 (has links)
No description available.
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365 |
THE STRUCTURE OF VITREOUS SILICAKITCHENS, THOMAS ADREN, JR. January 1963 (has links)
No description available.
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366 |
THE EFFECT OF UNIAXIAL STRESS ON THE ELECTRON PARAMAGNETIC RESONANCE OF URANIUM(III) AND NEODYMIUM(III) IONS IN CALCIUM FLUORIDEBLACK, TRUMAN DODD January 1964 (has links)
No description available.
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367 |
AN INVESTIGATION OF THE TEMPERATURE DEPENDENCE OF THE NUCLEAR SPIN-LATTICE RELAXATION TIME OF FLUORINE NUCLEI IN SINGLE CRYSTALS OF CALCIUM FLUORIDE DOPED WITH RARE-EARTH AND ACTINIDE ELEMENTSWALDROP, MORGAN ALBERT January 1964 (has links)
No description available.
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368 |
AN INVESTIGATION OF THE DIRECT SPIN-LATTICE INTERACTION IN PARAMAGNETIC CRYSTALS BY THE METHOD OF ULTRASONIC PARAMAGNETIC RESONANCEWETSEL, GROVER CLEVELAND, JR. January 1964 (has links)
No description available.
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369 |
THE ABSORPTION OF LONGITUDINAL SOUND WAVES IN CALCIUM FLUORIDEBREED, BENNY RAY January 1965 (has links)
No description available.
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370 |
AN INVESTIGATION OF THE MAGNETIC EFFECTS OF ROTATING SUPERCONDUCTORSKING, CRESTON ALEXANDER, JR. January 1965 (has links)
No description available.
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