scholarly journals Ferromagnetic ordering along the hard axis in the Kondo lattice YbIr3Ge7

2019 ◽  
Vol 99 (12) ◽  
Author(s):  
Binod K. Rai ◽  
Macy Stavinoha ◽  
J. Banda ◽  
D. Hafner ◽  
Katherine A. Benavides ◽  
...  
Keyword(s):  
Kondo Lattice ◽  
Hard Axis ◽  
Ferromagnetic Ordering

scholarly journals Magnetic field induced softening of spin waves and hard-axis order in the Kondo-lattice ferromagnet CeAgSb2

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
S. E. Nikitin ◽  
A. Podlesnyak ◽  
J. Xu ◽  
D. Voneshen ◽  
Manh Duc Le ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spin Waves ◽  
Kondo Lattice ◽  
Hard Axis

Ferromagnetic ordering in the Kondo lattice YbNiSn

1992 ◽  
Vol 108 (1-3) ◽  
pp. 141-142 ◽  
Author(s):  
P. Bellot ◽  
P. Bonville ◽  
J. Hammann ◽  
J.A. Hodges ◽  
P. Imbert ◽  
...  
Keyword(s):  
Kondo Lattice ◽  
Ferromagnetic Ordering

VALENCE INSTABILITIES.Theoretical study of the Kondo lattice

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-293-C5-300 ◽  
Author(s):  
R. Jullien ◽  
P. Pfeuty ◽  
J. N. Fields ◽  
S. Doniach
Keyword(s):  
Kondo Lattice

THE KONDO LATTICE : A THEORETICAL MODEL FOR Tm Se ?

1980 ◽  
Vol 41 (C5) ◽  
pp. C5-331-C5-333 ◽  
Author(s):  
R. Jullien ◽  
P. Pfeuty ◽  
A. K. Bhattacharjee ◽  
B. Coqblin
Keyword(s):  
Theoretical Model ◽  
Kondo Lattice

Influence of hydrostatic pressure on hidden order, the Kondo lattice, and magnetism in URu2Si2−xPx

2020 ◽  
Vol 102 (24) ◽  
Author(s):  
Greta L. Chappell ◽  
A. Gallagher ◽  
D. E. Graf ◽  
Peter Riseborough ◽  
Ryan E. Baumbach
Keyword(s):  
Hydrostatic Pressure ◽  
Kondo Lattice ◽  
Hidden Order

scholarly journals Drastic improvement of Curie temperature by chemical pressure in N-type diluted magnetic semiconductor Ba(Zn,Co)$$_{2}$$As$$_{2}$$

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Licheng Fu ◽  
Yilun Gu ◽  
Guoxiang Zhi ◽  
Haojie Zhang ◽  
Rufei Zhang ◽  
...  
Keyword(s):  
Unit Cell Volume ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Vital Role ◽  
Ferromagnetic Transition ◽  
Chemical Pressure ◽  
Tetragonal Crystal ◽  
Tetragonal Crystal Structure ◽  
Diluted Magnetic ◽  
Ferromagnetic Ordering

AbstractWe report the effect of chemical pressure on the ferromagnetic ordering of the recently reported n-type diluted magnetic semiconductor Ba(Zn$$_{1-x}$$ 1 - x Co$$_{x}$$ x )$$_{2}$$ 2 As$$_{2}$$ 2 which has a maximum $$T_C$$ T C $$\sim$$ ∼ 45 K. Doping Sb into As-site and Sr into Ba-site induces negative and positive chemical pressure, respectively. While conserving the tetragonal crystal structure and n-type carriers, the unit cell volume shrink by $$\sim$$ ∼ 0.3$$\%$$ % with 15$$\%$$ % Sr doping, but drastically increase the ferromagnetic transition temperature by 18$$\%$$ % to 53 K. Our experiment unequivocally demonstrate that the parameters of Zn(Co)As$$_{4}$$ 4 tetrahedra play a vital role in the formation of ferromagnetic ordering in the Ba(Zn,Co)$$_{2}$$ 2 As$$_{2}$$ 2 DMS.

scholarly journals Energy-scale cascade and correspondence between Mott and Kondo lattice physics

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Danqing Hu ◽  
Ning-Hua Tong ◽  
Yi-feng Yang
Keyword(s):  
Energy Scale ◽  
Kondo Lattice

scholarly journals Electron liquid state in the symmetric Anderson lattice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Igor N. Karnaukhov
Keyword(s):  
Low Temperatures ◽  
Arbitrary Dimension ◽  
Mean Field ◽  
Coulomb Repulsion ◽  
Anomalous Behavior ◽  
Effective Field ◽  
Kondo Lattice ◽  
Field Approach ◽  
Cubic Lattices ◽  
Half Filling

AbstractUsing mean field approach, we provide analytical and numerical solution of the symmetric Anderson lattice for arbitrary dimension at half filling. The symmetric Anderson lattice is equivalent to the Kondo lattice, which makes it possible to study the behavior of an electron liquid in the Kondo lattice. We have shown that, due to hybridization (through an effective field due to localized electrons) of electrons with different spins and momenta $$\mathbf{k} $$ k and $$\mathbf{k} +\overrightarrow{\pi }$$ k + π → , the gap in the electron spectrum opens at half filling. Such hybridization breaks the conservation of the total magnetic momentum of electrons, the spontaneous symmetry is broken. The state of electron liquid is characterized by a large Fermi surface. A gap in the spectrum is calculated depending on the magnitude of the on-site Coulomb repulsion and value of s–d hybridization for the chain, as well as for square and cubic lattices. Anomalous behavior of the heat capacity at low temperatures in the gapped state, which is realized in the symmetric Anderson lattice, was also found.

Sign in / Sign up

Export Citation Format

Share Document