Dynamics of Localized Moments in Metals. I. Kubo Formalism and Relaxation

Spencer, H. J.; Orbach, Raymond Lee

doi:10.1103/physrev.179.683

Cited by 13 publications

(1 citation statement)

References 6 publications

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“…This non-Lorentzian form of susceptibility is associated with relaxation to the instantaneous internal field (Spencer and Orbach 1968). For magnetically concentrated materials the spin-flip mean free path is much shorter than the skin depth and conduction electron diffusion effects are unimportant.…”

Section: Miyh+awl ) X(wh) = H(yh+awl-w)'mentioning

confidence: 99%

Simple Theory of the ?Negative Residual Linewidth? in Reflection Spectroscopy of Magnetically Concentrated Local Moment Systems

Stewart¹

1980

Aust. J. Phys.

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A mathematically improved analytical approximation is obtained to the solutions of the phenomenological equations of H. Hasegawa that describe the electron spin resonance of local moments in metals and the bottleneck effect that frequently occurs. The approximation shows that at all temperatures above the Curie point () the Iinewidth is proportional to T --() for any degree of bottlenecking, and not to temperature T. The solution also reveals that the g shift remains explicitly independent of temperature down to the Curie point. The expressions obtained take into account explicitly the direct local moment spin lattice relaxation rate and show that it is effective in breaking the bottleneck.

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Section: Miyh+awl ) X(wh) = H(yh+awl-w)'mentioning

confidence: 99%

Simple Theory of the ?Negative Residual Linewidth? in Reflection Spectroscopy of Magnetically Concentrated Local Moment Systems

Stewart¹

1980

Aust. J. Phys.

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Contribution to the theory of spin resonance of dilute magnetic alloys

Plefka

1971

Physica Status Solidi (b)

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From a microscopic point of view the fundamental theory about this problem is given in (1). In that theory, however, the detailed balance relation, postulated in phenomenological work (2, 3), is violated (4). The way, proposed in (4), to overcome this discrepancy i s not satisfactory.In the followir;g, the dynamic transverse susceptibility i s calculated from a microscopic starting point. The results satisfy the law of detailed balance. For the bottleneck (3) relaxation rate a temperature independent term being of first order in the exchange parameter, results from this law.

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Conduction Electron Spin Echo Modulation in Small Metal Particles

Жихарев

1980

Physica Status Solidi (b)

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Dynamics of Localized Moments in Metals. I. Kubo Formalism and Relaxation

Cited by 13 publications

References 6 publications

Simple Theory of the ?Negative Residual Linewidth? in Reflection Spectroscopy of Magnetically Concentrated Local Moment Systems

Simple Theory of the ?Negative Residual Linewidth? in Reflection Spectroscopy of Magnetically Concentrated Local Moment Systems

Contribution to the theory of spin resonance of dilute magnetic alloys

Conduction Electron Spin Echo Modulation in Small Metal Particles

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