### Abstract

Original language | English |
---|---|

Pages (from-to) | 3525-3534 |

Number of pages | 10 |

Journal | Journal of Physics-Condensed Matter |

Volume | 11 |

Issue number | 17 |

Publication status | Published - 1999 |

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### Cite this

*Journal of Physics-Condensed Matter*,

*11*(17), 3525-3534.

**Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals.** / Shlyk, L; Waerenborgh, J C; Estrela, Pedro; De Long, L E; de Visser, A; Almeida, M.

Research output: Contribution to journal › Article

*Journal of Physics-Condensed Matter*, vol. 11, no. 17, pp. 3525-3534.

}

TY - JOUR

T1 - Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals

AU - Shlyk, L

AU - Waerenborgh, J C

AU - Estrela, Pedro

AU - De Long, L E

AU - de Visser, A

AU - Almeida, M

N1 - ID number: 000080154600012

PY - 1999

Y1 - 1999

N2 - 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.

AB - 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.

M3 - Article

VL - 11

SP - 3525

EP - 3534

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 0953-8984

IS - 17

ER -