An extended impurity Anderson model showing divergent susceptibility and decreasing resistivity with decreasing temperature

Solid State Communications

Volumn 99, Issue 7, 1996, Pages 461-465

  Sakai, O ^a   Suzuki, S ^a   Shimizu, Y ^a   Kusunose, H ^b   Miyake, K ^b  

^a TOHOKU UNIVERSITY   (Japan)

^b OSAKA UNIVERSITY   (Japan)

Author keywords

D. electronic transport; D. Kondo effects; D. spin dynamics

Indexed keywords

ANTIFERROMAGNETISM; CRYSTAL IMPURITIES; ELECTRIC CONDUCTIVITY; ELECTRON ENERGY LEVELS; ELECTRON SCATTERING; FERMI LEVEL; MAGNETIC PERMEABILITY; MATHEMATICAL MODELS; NUMERICAL METHODS; THERMAL EFFECTS; URANIUM ALLOYS;

ANTIFERROMAGNETIC EXCHANGE; CONDUCTION ELECTRON ENERGY; DIVERGENT SUSCEPTIBILITY; ENERGY DIVERGENCE; EXTENDED TWO CHANNEL ANDERSON MODEL; KONDO EFFECTS; NUMERICAL RENORMALIZATION GROUP METHOD; OVER SCREENING EFFECT; SCATTERING INTENSITY; SPIN DYNAMICS;

ELECTRON TRANSPORT PROPERTIES;

EID: 0030212406     PISSN: 00381098     EISSN: None     Source Type: Journal    
DOI: 10.1016/0038-1098(96)00311-0     Document Type: Article

References (24)

1. P. Nozières and A. Blandin, J. Phys. (Paris) 41 (1980) 193.
2. See for example, P. D. Sacramento and P. Schlottmann, Phys. Lett. A142 (1989) 245.
3. D. L. Cox, Physica B186-188 (1993) 312.
4. Muramatsu and Guinea, Phys. Rev. Lett. 57 (1986) 2337.
5. See for example, Physica B206&207 (1995) for references.
6. J. S. Kim, B. Andraka, C. S. Jee, S. B. Roy and G. R. Stewart, Phys. Rev. B41 (1990) 11073.
7. Y. Aoki, K. Terayama, H. Sato, K. Maeda and Y. Onuki, Physica B206&207 (1995) 451.
8. H. Suzuki and S. Takagi, Physica B206&207 (1995) 485, and H. Suzuki, Doctor thesis, 1996 Tohoku University (unpublished).
9. H. Amitsuka and T. Sakakibara, J. Phys. Soc. Jpn. 63 (1994) 736.
10. O. Sakai, Y. Shimizu and N. Kaneko, Physica B186-188 (1993) 322.
11. t.
12. I. Affleck, A. W. W. Ludwig, H. B. Pang and D. L. Cox, Phys. Rev. B45 (1992) 7918.
13. See for example, Y. Kuramoto, in Transport and Thermal Properties of f-Electron Systems, eds. G. Oomi, H. Fujii and T. Fujita (Plenum Press, New York, 1993) p.237.
14. M. Koga and H. Shiba, J. Phys. Soc. Jpn. 64 (1995) 4345.
15. H. Kusunose, K. Miyake, Y. Shimizu and O. Sakai, Phys. Rev. Lett. 76 (1996) 271.
16. I. Affleck and A. W. W. Ludwig, Phys. Rev. B48 (1993) 7297.
17. z with eigen value m(= ±1).
18. O. Sakai, Y. Shimizu and T. Kasuya, Progr. Theor. Phys. Suppl. 108 (1992) 73.
19. 3 states are kept in each step of the NRG calculation. The spectral intensity of the single particle excitation at the Fermi energy has about 90% of the value expected from Friedel's sum rule as seen in Fig. 2G. This numerical accuracy seems to be sufficient to see the qualitative properties of the spectra in the low energy region.
20. See for example, D. C. Langreth, Phys. Rev. 150 (1966) 516.
21. -1).
22. K is defined by the peak position of the magnetic excitation. This gives good approximate value of the usual definition of the Kondo temperature in the four fold degenerate case, see S. Suzuki, O. Sakai and Y. Shimizu, (submitted to J. Phys. Soc. Jpn.)
23. O. Sakai, S. Suzuki and Y. Shimizu, Physica, B206&207 (1995) 141.
24. 3 K in the actual temperature scale when we put U ∼ 2eV, the expected value for U ion.