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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
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Mattis, Daniel C. | Band theory of ferromagnetism, antiferromagnetism, and spin waves | Intra-atomic exchange (Hund's rule mechanism) and Heisenberg nearest-neighbor exchange are examined for their role in the ferromagnetism of metals with degenerate bands. The equations of motion of spin waves valid near T=0°K are derived, and a number of branches are found. When the equations are ... | Orbital degeneracy; Indirect exchange theory; Band theory | 1964 |
| 2 |
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Ailion, David Charles | Low-field relaxation and the study of ultraslow atomic motions by magnetic resonance | Conventional resonance enables one to study motion of atoms by measurement of line width when the mean time r between jumps is less than 1/Aco, where Aa> is the rigid lattice line width, or by measurement of the spin-lattice relaxation time, Ti, when r ^ l / coo , where coo is the Larmor frequency. ... | Ultraslow atomic motion; Magnetic resonance | 1964 |
| 3 |
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Ailion, David Charles | Study of utraslow atomic motions by magnetic resonance | Magnetic resonance has been widely used to study phenomena such as atomic diffusion and molecular reorientation. It is applicable when the mean time, r, between atomic jumps is either (a) sufficiently short to narrow the resonance line width or (b) of the correct magnitude to produce spin-lattice ... | Atomic motion; Magnetic resonance; Ultraslow atomic motion | 1964 |
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