Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals
Shlyk, L., Waerenborgh, J. C., Estrela, P., De Long, L. E., de Visser, A. and Almeida, M., 1999. Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals. Journal of Physics-Condensed Matter, 11 (17), pp. 3525-3534.
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U3Ni3Sn4 and U2.9Ni3.0Sn3.9 single crystals exhibit a non-Fermi-liquid susceptibility chi proportional to T-0.3 between 1.7 and 10 K. The electronic heat capacity coefficient gamma(T) of U2.9Ni3.0Sn3.9 varies as the square root of temperature between 0.3 and 5 K. Although most available non-Fermi-liquid models are in disagreement with these results, the heat capacity data are consistent with a renormalization group calculation for magnetic fluctuations near an antiferromagnetic quantum critical point (QCP). Alternatively, both the magnetic and heat capacity data can be fitted to a Griffiths-phase model for magnetic clusters near a QCP, using a single characteristic exponent lambda = 0.7.
|Creators||Shlyk, L., Waerenborgh, J. C., Estrela, P., De Long, L. E., de Visser, A. and Almeida, M.|
|Departments||Faculty of Engineering & Design > Electronic & Electrical Engineering|
|Additional Information||ID number: 000080154600012|
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