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

L Shlyk, J C Waerenborgh, Pedro Estrela, L E De Long, A de Visser, M Almeida

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)3525-3534
Number of pages10
JournalJournal of Physics-Condensed Matter
Volume11
Issue number17
Publication statusPublished - 1999

Fingerprint

Specific heat
specific heat
Single crystals
single crystals
critical point
Liquids
liquids
exponents
magnetic permeability
coefficients
electronics
Temperature
temperature

Cite this

Shlyk, L., Waerenborgh, J. C., Estrela, P., De Long, L. E., de Visser, A., & Almeida, M. (1999). Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals. 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.

In: Journal of Physics-Condensed Matter, Vol. 11, No. 17, 1999, p. 3525-3534.

Research output: Contribution to journalArticle

Shlyk, L, Waerenborgh, JC, Estrela, P, De Long, LE, de Visser, A & Almeida, M 1999, 'Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals', Journal of Physics-Condensed Matter, vol. 11, no. 17, pp. 3525-3534.
Shlyk L, Waerenborgh JC, Estrela P, De Long LE, de Visser A, Almeida M. Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals. Journal of Physics-Condensed Matter. 1999;11(17):3525-3534.
Shlyk, L ; Waerenborgh, J C ; Estrela, Pedro ; De Long, L E ; de Visser, A ; Almeida, M. / Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals. In: Journal of Physics-Condensed Matter. 1999 ; Vol. 11, No. 17. pp. 3525-3534.
@article{4069ad9a8fe74cf4b1c705b78432c208,
title = "Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals",
abstract = "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.",
author = "L Shlyk and Waerenborgh, {J C} and Pedro Estrela and {De Long}, {L E} and {de Visser}, A and M Almeida",
note = "ID number: 000080154600012",
year = "1999",
language = "English",
volume = "11",
pages = "3525--3534",
journal = "Journal of Physics: Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing",
number = "17",

}

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 -