Abstract
We present a low temperature study of the nearly antiferromagnetic heavy Fermion compound CeNi2Ge2 including specific heat measurements in magnetic fields up to 13 T, resistivity, magnetization, DC- and AC- susceptibility measurements down to 30 mK. The results show that, although the system is close to a quantum critical point, CeNi2Ge2 exhibits Fermi-liquid behavior below approximately 300 mK. At higher temperatures hyperscaling indicates the existence of strong coupling spin fluctuations responsible for the observed non-Fermi-liquid properties.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
G. Knopp, A. Loidl, R. Caspary, U. Gottwick, C. D. Bredl, H. Spille, F. Steglich, and A. P. Murani, J. Magn. Magn. Mater. 74, 341 (1988).
G. Sparn, R. Caspary, U. Gottwick, A. Grauel, U. Habel, M. Lang, M. Nowak, R. Schefzyk, W. Schiebling, H. Spille, M. Winkelmann, A. Zuber, F. Steglich, and A. Loidl, J. Magn. Magn. Mater. 76–77, 153 (1988).
F. Steglich, B. Buschinger, P. Gegenwart, M. Lohmann, R. Helfrich, C. Langhammer, P. Hellmann, L. Donnevert, S. Thomas, A. Link, C. Geibel, M. Lang, G. Sparn, and W. Assmus, J. Phys.: Condens. Matter 8, 9909 (1996).
T. Moriya and T. Takimoto, J. Phys. Soc. Jpn. 64, 960 (1995).
Y. Aoki, J. Urakawa, H. Sugawara, H. Sato, T. Fukuhara, and K. Maezawa, J. Phys. Soc. Jpn. 66, 2993 (1997).
P. Gegenwart, F. Kromer, M. Lang, G. Sparn, C. Geibel, and F. Steglich, Phys. Rev. Lett. 82, 1293 (1999).
H. von Löhneysen, J. Phys.: Condens. Matter 8, 9689 (1996).
K. Umeo, T. Takabatake, H. Ohmoto, T. Pietrus, H. v. Löhneysen, K. Koyama, S. Hane, and T. Goto, Phys. Rev. B 58, 12095 (1998).
K. Heuser, E.-W. Scheidt, T. Schreiner, and G. R. Stewart, Phys. Rev. B 58, R15959 (1998).
F. M. Grosche, P. Agarwal, S. R. Julian, N. J. Wilson, R. K. W. Haselwimmer, S. J. S. Lister, N. D. Mathur, F. V. Carter, S. S. Saxena, and G. G. Lonzarich, cond-mat/9812133.
T. Fukuhara, K. Mazewa, H. Ohkuni, J. Sakurai, and H. Sato, J. Magn. Magn. Mater. 140–144, 889 (1995).
G. Knebel, M. Brando, J. Hemberger, M. Nicklas, W. Trinkl, and A. Loidl, Phys. Rev. B 59, 12390 (1999).
B. Andraka and A. M. Tsvelik, Phys. Rev. Lett. 67, 2886 (1991).
A. M. Tsvelik, Phys. Rev. B 48, 9887 (1993).
A. M. Tsvelik, private communication.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Koerner, S., Scheidt, EW., Schreiner, T. et al. Crossover to Fermi-Liquid Behavior at Lowest Temperatures in Pure CeNi2Ge2. Journal of Low Temperature Physics 119, 147–153 (2000). https://doi.org/10.1023/A:1004616704032
Issue Date:
DOI: https://doi.org/10.1023/A:1004616704032