Nuclear Level Splitting Caused by a Combined Electric Quadrupole and Magnetic Dipole Interaction

1962 ◽  
Vol 125 (1) ◽  
pp. 261-268 ◽  
Author(s):  
Eckart Matthias ◽  
Werner Schneider ◽  
Rolf M. Steffen
Keyword(s):  
Magnetic Dipole ◽  
Electric Quadrupole ◽  
Dipole Interaction ◽  
Magnetic Dipole Interaction ◽  
Nuclear Level ◽  
Level Splitting

Hyperfine interactions in the J = 5 states of 147Sm and 149Sm

1968 ◽  
Vol 46 (22) ◽  
pp. 2499-2507 ◽  
Author(s):  
R. G. H. Robertson ◽  
J. C. Waddington ◽  
R. G. Summers-Gill
Keyword(s):  
Hyperfine Interaction ◽  
Magnetic Dipole ◽  
Configuration Interaction ◽  
Hyperfine Interactions ◽  
Electric Quadrupole ◽  
Dipole Interaction ◽  
Electric Quadrupole Interaction ◽  
Magnetic Dipole Interaction ◽  
Ground Term ◽  
Hyperfine Constants

The hyperfine interaction constants Ak(5) have been measured in 147Sm and 149Sm. Consideration of the k = 2 results together with Woodgate's values of A2(J) for J = 1 to 4 shows that his nonrelativistic treatment of the electric quadrupole interaction in samarium is inadequate but that a relativistic one gives excellent agreement. The effect cannot be confused with a possible configuration interaction as it can in the case of the magnetic dipole interaction. Allowance for the effects of octupolelike second-order corrections and more precise computation of the dipole- and quadrupole-like corrections markedly affect the published results for the hyperfine constants in the lower J states, but the revision does not improve the agreement with the theoretical expressions. It would appear that Conway and Wybourne's analysis of the breakdown of L–S coupling in the nominally 7F ground term is not adequate, particularly for the computation of the coefficient of the sC2 term.

Magnetic dipole interaction studied by the differential angular correlation method

1963 ◽  
Vol 40 ◽  
pp. 656-669 ◽  
Author(s):  
E. Matthias ◽  
L. Boström ◽  
Alice Maciel ◽  
M. Salomon ◽  
T. Lindqvist
Keyword(s):  
Angular Correlation ◽  
Magnetic Dipole ◽  
Correlation Method ◽  
Dipole Interaction ◽  
Magnetic Dipole Interaction

Light-induced coherent magnon excitation in monolayer magnetic nanodots

2015 ◽  
Vol 29 (08) ◽  
pp. 1550055
Author(s):  
Peng Feng ◽  
Jianqiao Xie
Keyword(s):  
Theoretical Model ◽  
Magnetic Dipole ◽  
Polarized Light ◽  
Dipole Interaction ◽  
Continuum Approximation ◽  
Magnetic Dipole Interaction ◽  
Circularly Polarized Light ◽  
Component Distribution ◽  
Magnetic Nanodots ◽  
Magnon Excitation

We develop a quantum theory to deal with the coherent magnon excitation in monolayer magnetic nanodots induced by a circularly polarized light. In our theoretical model, the exchange interaction, the magnetic dipole interaction and the light-matter interaction are all taken into account and an effective dynamic equations governing the magnon excitation is derived by a continuum approximation. Our theoretical model shows that the helicity of light and the magnetic dipole interaction govern the magnon excitation and result in the occurrence of various patterns for the spin z-component distribution. We present a scheme to manipulate the single-mode magnon excitation by properly tuning the light frequency.

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