Spin-density-wave effects in the (Cr98.4Al1.6) 100-yMoy alloy system

B. Muchono; A. R.E. Prinsloo; C. J. Sheppard; H. L. Alberts; A. M. Strydom

doi:10.1016/j.jmmm.2013.10.057

Spin-density-wave effects in the (Cr_98.4Al_1.6) _100-yMo_y alloy system

B. Muchono, A. R.E. Prinsloo, C. J. Sheppard, H. L. Alberts, A. M. Strydom

Physics

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The possibility of quantum critical behaviour in a spin-density-wave antiferromagnetic (Cr_98.4Al_1.6)_100-yMo _y alloy system is investigated through electrical resistivity, Seebeck coefficient and specific heat measurements. Magnetic resistivity anomalies associated with the Néel transition temperature are highly enhanced in the thermoelectric measurements, allowing for complementary methods in obtaining the Néel temperatures of these alloys. The results indicate a suppression of the Néel temperatures to below 2 K for alloy concentrations yâ‰

Original language	English
Pages (from-to)	222-230
Number of pages	9
Journal	Journal of Magnetism and Magnetic Materials
Volume	354
DOIs	https://doi.org/10.1016/j.jmmm.2013.10.057
Publication status	Published - 2014

Keywords

Antiferromagnetism
Electrical resistivity
Quantum critical behavior
Sommerfeld coefficient
Specific heat
Spin-density-wave
Thermopower

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2013.10.057

Cite this

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title = "Spin-density-wave effects in the (Cr98.4Al1.6) 100-yMoy alloy system",

abstract = "The possibility of quantum critical behaviour in a spin-density-wave antiferromagnetic (Cr98.4Al1.6)100-yMo y alloy system is investigated through electrical resistivity, Seebeck coefficient and specific heat measurements. Magnetic resistivity anomalies associated with the N{\'e}el transition temperature are highly enhanced in the thermoelectric measurements, allowing for complementary methods in obtaining the N{\'e}el temperatures of these alloys. The results indicate a suppression of the N{\'e}el temperatures to below 2 K for alloy concentrations y{\^a}‰",

keywords = "Antiferromagnetism, Electrical resistivity, Quantum critical behavior, Sommerfeld coefficient, Specific heat, Spin-density-wave, Thermopower",

author = "B. Muchono and Prinsloo, {A. R.E.} and Sheppard, {C. J.} and Alberts, {H. L.} and Strydom, {A. M.}",

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language = "English",

volume = "354",

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journal = "Journal of Magnetism and Magnetic Materials",

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AU - Muchono, B.

AU - Prinsloo, A. R.E.

AU - Sheppard, C. J.

AU - Alberts, H. L.

AU - Strydom, A. M.

PY - 2014

Y1 - 2014

N2 - The possibility of quantum critical behaviour in a spin-density-wave antiferromagnetic (Cr98.4Al1.6)100-yMo y alloy system is investigated through electrical resistivity, Seebeck coefficient and specific heat measurements. Magnetic resistivity anomalies associated with the Néel transition temperature are highly enhanced in the thermoelectric measurements, allowing for complementary methods in obtaining the Néel temperatures of these alloys. The results indicate a suppression of the Néel temperatures to below 2 K for alloy concentrations yâ‰

AB - The possibility of quantum critical behaviour in a spin-density-wave antiferromagnetic (Cr98.4Al1.6)100-yMo y alloy system is investigated through electrical resistivity, Seebeck coefficient and specific heat measurements. Magnetic resistivity anomalies associated with the Néel transition temperature are highly enhanced in the thermoelectric measurements, allowing for complementary methods in obtaining the Néel temperatures of these alloys. The results indicate a suppression of the Néel temperatures to below 2 K for alloy concentrations yâ‰

KW - Antiferromagnetism

KW - Electrical resistivity

KW - Quantum critical behavior

KW - Sommerfeld coefficient

KW - Specific heat

KW - Spin-density-wave

KW - Thermopower

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VL - 354

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JF - Journal of Magnetism and Magnetic Materials

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