Anisotropy of magnetization in high magnetic fields of the trivalent heavy rare earth ions in an octahedral crystal field

1967 ◽  
Vol 25 (8) ◽  
pp. 602-604 ◽  
Author(s):  
P. Junod ◽  
A. Menth
1974 ◽  
Vol 52 (18) ◽  
pp. 1759-1764 ◽  
Author(s):  
F. T. Hedgcock ◽  
S. Lenis ◽  
P. L. Li ◽  
J. O. Ström-Olsen ◽  
E. F. Wassermann

We have extended the low temperature magnetic anisotropy measurements on single crystals of zinc containing up to 600 p.p.m. manganese from magnetic fields of 9 to 56 kG. The crystal field splitting parameters determined at low magnetic fields also characterizes the magnetic anisotropy at high magnetic fields. Manganese–manganese interaction effects are observed in the magnetic anisotropy at manganese concentrations greater than 300 p.p.m. Low temperature magnetic anisotropy measurements on single crystals of zinc containing up to 164 p.p.m. chromium are reported and indicate a crystal field splitting of 0.16 K for the chromium ion.


2007 ◽  
Vol 21 (08n09) ◽  
pp. 1481-1485 ◽  
Author(s):  
TADASHI TAKAMASU ◽  
KOICHI SATO

The rare-earth doped AlAs/GaAs superlattices were grown by molecular beam epitaxy method. From the magneto-oscillation of the interband broad photoluminescence peak, electrons accumulated in the well were analyzed.


2005 ◽  
Vol 866 ◽  
Author(s):  
David Carey

AbstractThe g values of rare earth ions obtained from either paramagnetic resonance or Zeeman measurements are often used to interpret the location and/or environment surrounding rare earth ions. In the case of centres with cubic symmetry the g value can be used to distinguish between substitutional and interstitial sites. For centres with less than cubic symmetry the average g value, taken as 1/3 trace of the g tensor, is often used as an indication of the lattice location and/or a measure of the strength of the local crystal field. This approach is widely used but is based on the assumption that the non-cubic terms in the total crystal field potential are small compared with the cubic crystal field. In this paper we have explored this assumption by calculating the principal g values in axial crystal fields for the Er3+ ion. We examine the limits over which the average g value approach is valid. Comparison is made with published results.


2006 ◽  
Author(s):  
M. Doerr ◽  
M. Rotter ◽  
J. Brooks ◽  
E. Jobiliong ◽  
A. Lindbaum ◽  
...  

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