Structural, magnetic and transport properties of single-crystalline U2Pt2In

Pedro Estrela, L C J Pereira, A de Visser, F R de Boer, M Almeida, M Godinho, J Rebizant, J C Spirlet

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Single crystals of the heavy-electron compound U2Pt2In have been grown by a modified mineralization technique. The x-ray structure refinement shows that U2Pt2In single crystals form in the Zr3Al2 structure, instead of the U3Si2 structure reported for polycrystalline material. The polymorphism of U2Pt2In is attributed to the experimental parameters, such as pressure and temperature, during the sample preparation process. The single-crystal susceptibility data reveal a weak maximum for chi(c) at T-max = 7.9 K indicating the presence of short-range antiferromagnetic correlations, while chi(a) has the tendency to diverge at low T(T > 2 K). The electrical resistivity of the single crystals (T > 0.3 K) is best described by rho similar to T-alpha with alpha similar to 1.1(1) for I parallel to a and alpha similar to 0.3(2) for I parallel to c. The magnetic and transport data show pronounced deviations from the standard Fermi-liquid picture, and lead to a classification of U2Pt2In as a non-Fermi-liquid compound. As the origin of Nn behaviour in U2Pt2In we propose the proximity to a quantum critical point or Kondo disorder.
Original languageEnglish
Pages (from-to)9465-9475
Number of pages11
JournalJournal of Physics-Condensed Matter
Volume10
Issue number42
Publication statusPublished - 1998

Fingerprint

Transport properties
Structural properties
Magnetic properties
transport properties
Single crystals
magnetic properties
Crystalline materials
single crystals
Fermi liquids
Polycrystalline materials
polymorphism
Polymorphism
Intermetallics
intermetallics
proximity
critical point
tendencies
disorders
magnetic permeability
deviation

Cite this

Estrela, P., Pereira, L. C. J., de Visser, A., de Boer, F. R., Almeida, M., Godinho, M., ... Spirlet, J. C. (1998). Structural, magnetic and transport properties of single-crystalline U2Pt2In. Journal of Physics-Condensed Matter, 10(42), 9465-9475.

Structural, magnetic and transport properties of single-crystalline U2Pt2In. / Estrela, Pedro; Pereira, L C J; de Visser, A; de Boer, F R; Almeida, M; Godinho, M; Rebizant, J; Spirlet, J C.

In: Journal of Physics-Condensed Matter, Vol. 10, No. 42, 1998, p. 9465-9475.

Research output: Contribution to journalArticle

Estrela, P, Pereira, LCJ, de Visser, A, de Boer, FR, Almeida, M, Godinho, M, Rebizant, J & Spirlet, JC 1998, 'Structural, magnetic and transport properties of single-crystalline U2Pt2In', Journal of Physics-Condensed Matter, vol. 10, no. 42, pp. 9465-9475.
Estrela P, Pereira LCJ, de Visser A, de Boer FR, Almeida M, Godinho M et al. Structural, magnetic and transport properties of single-crystalline U2Pt2In. Journal of Physics-Condensed Matter. 1998;10(42):9465-9475.
Estrela, Pedro ; Pereira, L C J ; de Visser, A ; de Boer, F R ; Almeida, M ; Godinho, M ; Rebizant, J ; Spirlet, J C. / Structural, magnetic and transport properties of single-crystalline U2Pt2In. In: Journal of Physics-Condensed Matter. 1998 ; Vol. 10, No. 42. pp. 9465-9475.
@article{08aa8e900db64c99a8929d431a1ac141,
title = "Structural, magnetic and transport properties of single-crystalline U2Pt2In",
abstract = "Single crystals of the heavy-electron compound U2Pt2In have been grown by a modified mineralization technique. The x-ray structure refinement shows that U2Pt2In single crystals form in the Zr3Al2 structure, instead of the U3Si2 structure reported for polycrystalline material. The polymorphism of U2Pt2In is attributed to the experimental parameters, such as pressure and temperature, during the sample preparation process. The single-crystal susceptibility data reveal a weak maximum for chi(c) at T-max = 7.9 K indicating the presence of short-range antiferromagnetic correlations, while chi(a) has the tendency to diverge at low T(T > 2 K). The electrical resistivity of the single crystals (T > 0.3 K) is best described by rho similar to T-alpha with alpha similar to 1.1(1) for I parallel to a and alpha similar to 0.3(2) for I parallel to c. The magnetic and transport data show pronounced deviations from the standard Fermi-liquid picture, and lead to a classification of U2Pt2In as a non-Fermi-liquid compound. As the origin of Nn behaviour in U2Pt2In we propose the proximity to a quantum critical point or Kondo disorder.",
author = "Pedro Estrela and Pereira, {L C J} and {de Visser}, A and {de Boer}, {F R} and M Almeida and M Godinho and J Rebizant and Spirlet, {J C}",
note = "ID number: 000076842400012",
year = "1998",
language = "English",
volume = "10",
pages = "9465--9475",
journal = "Journal of Physics: Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing",
number = "42",

}

TY - JOUR

T1 - Structural, magnetic and transport properties of single-crystalline U2Pt2In

AU - Estrela, Pedro

AU - Pereira, L C J

AU - de Visser, A

AU - de Boer, F R

AU - Almeida, M

AU - Godinho, M

AU - Rebizant, J

AU - Spirlet, J C

N1 - ID number: 000076842400012

PY - 1998

Y1 - 1998

N2 - Single crystals of the heavy-electron compound U2Pt2In have been grown by a modified mineralization technique. The x-ray structure refinement shows that U2Pt2In single crystals form in the Zr3Al2 structure, instead of the U3Si2 structure reported for polycrystalline material. The polymorphism of U2Pt2In is attributed to the experimental parameters, such as pressure and temperature, during the sample preparation process. The single-crystal susceptibility data reveal a weak maximum for chi(c) at T-max = 7.9 K indicating the presence of short-range antiferromagnetic correlations, while chi(a) has the tendency to diverge at low T(T > 2 K). The electrical resistivity of the single crystals (T > 0.3 K) is best described by rho similar to T-alpha with alpha similar to 1.1(1) for I parallel to a and alpha similar to 0.3(2) for I parallel to c. The magnetic and transport data show pronounced deviations from the standard Fermi-liquid picture, and lead to a classification of U2Pt2In as a non-Fermi-liquid compound. As the origin of Nn behaviour in U2Pt2In we propose the proximity to a quantum critical point or Kondo disorder.

AB - Single crystals of the heavy-electron compound U2Pt2In have been grown by a modified mineralization technique. The x-ray structure refinement shows that U2Pt2In single crystals form in the Zr3Al2 structure, instead of the U3Si2 structure reported for polycrystalline material. The polymorphism of U2Pt2In is attributed to the experimental parameters, such as pressure and temperature, during the sample preparation process. The single-crystal susceptibility data reveal a weak maximum for chi(c) at T-max = 7.9 K indicating the presence of short-range antiferromagnetic correlations, while chi(a) has the tendency to diverge at low T(T > 2 K). The electrical resistivity of the single crystals (T > 0.3 K) is best described by rho similar to T-alpha with alpha similar to 1.1(1) for I parallel to a and alpha similar to 0.3(2) for I parallel to c. The magnetic and transport data show pronounced deviations from the standard Fermi-liquid picture, and lead to a classification of U2Pt2In as a non-Fermi-liquid compound. As the origin of Nn behaviour in U2Pt2In we propose the proximity to a quantum critical point or Kondo disorder.

M3 - Article

VL - 10

SP - 9465

EP - 9475

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 0953-8984

IS - 42

ER -