Kondo effect, spin dynamics and magnetism in anomalous rare earth and actinide compounds

1989 ◽  
Vol 75 (1) ◽  
pp. 67-76 ◽  
Author(s):  
V. Yu. Irkhin ◽  
M. I. Katsnelson
Keyword(s):  
Rare Earth ◽  
Kondo Effect ◽  
Spin Dynamics

scholarly journals Intrinsically weak magnetic anisotropy of cerium in potential hard-magnetic intermetallics

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Anna Galler ◽  
Semih Ener ◽  
Fernando Maccari ◽  
Imants Dirba ◽  
Konstantin P. Skokov ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Magnetic Anisotropy ◽  
High Performance ◽  
Kondo Effect ◽  
Quantitative Description ◽  
Many Body ◽  
Heavy Rare Earth Elements ◽  
Fe Intermetallics ◽  
Full Temperature

AbstractCerium-based intermetallics are currently attracting much interest as a possible alternative to existing high-performance magnets containing scarce heavy rare-earth elements. However, the intrinsic magnetic properties of Ce in these systems are poorly understood due to the difficulty of a quantitative description of the Kondo effect, a many-body phenomenon where conduction electrons screen out the Ce-4f moment. Here, we show that the Ce-4f shell in Ce–Fe intermetallics is partially Kondo screened. The Kondo scale is dramatically enhanced by nitrogen interstitials suppressing the Ce-4f contribution to the magnetic anisotropy, in striking contrast to the effect of nitrogenation in isostructural intermetallics containing other rare-earth elements. We determine the full temperature dependence of the Ce-4f single-ion anisotropy and show that even unscreened Ce-4f moments contribute little to the room-temperature intrinsic magnetic hardness. Our study thus establishes fundamental constraints on the potential of cerium-based permanent magnet intermetallics.

scholarly journals Spin dynamics in the neutral rare-earth single-molecule magnets[TbPc2]0and[DyPc2]0fromμSRand NMR spectroscopies

2009 ◽  
Vol 79 (22) ◽  
Author(s):  
F. Branzoli ◽  
M. Filibian ◽  
P. Carretta ◽  
S. Klyatskaya ◽  
M. Ruben
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Spin Dynamics ◽  
Single Molecule Magnets

Rare Earth Spin Dynamics in the Nd-Doped High-Tc Superconductor La2−xSrxCuO4

2006 ◽  
pp. 329-334
Author(s):  
M. Roepke ◽  
E. Holland-Moritz ◽  
B. Büchner ◽  
R. Borowski ◽  
R. Kahn ◽  
...  
Keyword(s):  
Rare Earth ◽  
Spin Dynamics ◽  
High Tc ◽  
High Tc Superconductor

scholarly journals Electrostatic tuning of Kondo effect in a rare-earth-doped wide-band-gap oxide

2013 ◽  
Vol 87 (15) ◽  
Author(s):  
Yongfeng Li ◽  
Rui Deng ◽  
Weinan Lin ◽  
Yufeng Tian ◽  
Haiyang Peng ◽  
...  
Keyword(s):  
Rare Earth ◽  
Band Gap ◽  
Kondo Effect ◽  
Wide Band ◽  
Wide Band Gap ◽  
Rare Earth Doped

Nuclear spin diffusion and paramagnetic spin dynamics in rare earth doped phosphate glasses

1996 ◽  
Vol 46 (S4) ◽  
pp. 2253-2254
Author(s):  
I. P. Goudemond ◽  
J. M. Keartland ◽  
M. J. R. Hoch ◽  
G. A. Saunders
Keyword(s):  
Rare Earth ◽  
Nuclear Spin ◽  
Spin Diffusion ◽  
Spin Dynamics ◽  
Phosphate Glasses ◽  
Rare Earth Doped

Spin Dynamics in Rare Earth Doped Cobalt Ferromagnetic Films

2014 ◽  
pp. 56-58
Author(s):  
L. H. F. Andrade ◽  
M. Vomir ◽  
J. Kim ◽  
M. Sanches Piaia ◽  
A. D. Santos ◽  
...  
Keyword(s):  
Rare Earth ◽  
Spin Dynamics ◽  
Ferromagnetic Films ◽  
Rare Earth Doped
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