Magnetism and superconductivity in CeRh1-xIrxIn5 heavy fermion materials

G. D. Morris; R. H. Heffner; J. E. Sonier; D. E. MacLaughlin; O. O. Bernal; G. J. Nieuwenhuys; A. T. Savici; P. G. Pagliuso; J. L. Sarrao

doi:10.1016/S0921-4526(02)01640-X

Magnetism and superconductivity in CeRh_1-xIr_xIn₅ heavy fermion materials

G. D. Morris, R. H. Heffner, J. E. Sonier, D. E. MacLaughlin, O. O. Bernal, G. J. Nieuwenhuys, A. T. Savici, P. G. Pagliuso, J. L. Sarrao

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

9 Scopus citations

Abstract

We report zero-field-μSR studies of cerium-based heavy-fermion materials CeRh_1-xIr_xIn₅. In the superconducting x = 0.75 and 1.0 compositions, muon spin relaxation functions were found to be temperature independent across T_c; no evidence for the presence of electronic magnetic moments was observed. The x = 0.5 material is antiferromagnetic below T_N = 3.75 K and superconducting below T_c = 0.8 K. μSR spectra show the gradual onset of damped coherent oscillations characteristic of magnetic order below T_N. At 1.65 K the total oscillating amplitude accounts for at least 85% of the sample volume. No change in precession frequency or amplitude is detected on cooling below T_c, indicating the microscopic coexistence of magnetism and superconductivity in this material.

Original language	English
Pages (from-to)	390-393
Number of pages	4
Journal	Physica B: Physics of Condensed Matter
Volume	326
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4526(02)01640-X
State	Published - Feb 2003
Externally published	Yes

Funding

This work was supported in part by US NSF grants DMR-0102293 (UC Riverside) and DMR-9820631 (CSU Los Angeles). JES acknowledges support from the Natural Sciences and Engineering Research Council (NSERC) and the Canadian Institute for Advanced Research. Work at Los Alamos was performed under the auspices of the US Department of Energy, Office of Science.

Funders	Funder number
National Science Foundation	DMR-9820631, DMR-0102293
Canadian Institute for Advanced Research
Natural Sciences and Engineering Research Council of Canada

Keywords

CeMIn
F-electron magnetism
Heavy-fermion
Superconductivity

Access to Document

10.1016/S0921-4526(02)01640-X

Cite this

@article{c3659bde83d648f89c8d09af4edf039c,

title = "Magnetism and superconductivity in CeRh1-xIrxIn5 heavy fermion materials",

abstract = "We report zero-field-μSR studies of cerium-based heavy-fermion materials CeRh1-xIrxIn5. In the superconducting x = 0.75 and 1.0 compositions, muon spin relaxation functions were found to be temperature independent across Tc; no evidence for the presence of electronic magnetic moments was observed. The x = 0.5 material is antiferromagnetic below TN = 3.75 K and superconducting below Tc = 0.8 K. μSR spectra show the gradual onset of damped coherent oscillations characteristic of magnetic order below TN. At 1.65 K the total oscillating amplitude accounts for at least 85% of the sample volume. No change in precession frequency or amplitude is detected on cooling below Tc, indicating the microscopic coexistence of magnetism and superconductivity in this material.",

keywords = "CeMIn, F-electron magnetism, Heavy-fermion, Superconductivity",

author = "Morris, {G. D.} and Heffner, {R. H.} and Sonier, {J. E.} and MacLaughlin, {D. E.} and Bernal, {O. O.} and Nieuwenhuys, {G. J.} and Savici, {A. T.} and Pagliuso, {P. G.} and Sarrao, {J. L.}",

year = "2003",

month = feb,

doi = "10.1016/S0921-4526(02)01640-X",

language = "English",

volume = "326",

pages = "390--393",

journal = "Physica B: Physics of Condensed Matter",

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TY - JOUR

T1 - Magnetism and superconductivity in CeRh1-xIrxIn5 heavy fermion materials

AU - Morris, G. D.

AU - Heffner, R. H.

AU - Sonier, J. E.

AU - MacLaughlin, D. E.

AU - Bernal, O. O.

AU - Nieuwenhuys, G. J.

AU - Savici, A. T.

AU - Pagliuso, P. G.

AU - Sarrao, J. L.

PY - 2003/2

Y1 - 2003/2

N2 - We report zero-field-μSR studies of cerium-based heavy-fermion materials CeRh1-xIrxIn5. In the superconducting x = 0.75 and 1.0 compositions, muon spin relaxation functions were found to be temperature independent across Tc; no evidence for the presence of electronic magnetic moments was observed. The x = 0.5 material is antiferromagnetic below TN = 3.75 K and superconducting below Tc = 0.8 K. μSR spectra show the gradual onset of damped coherent oscillations characteristic of magnetic order below TN. At 1.65 K the total oscillating amplitude accounts for at least 85% of the sample volume. No change in precession frequency or amplitude is detected on cooling below Tc, indicating the microscopic coexistence of magnetism and superconductivity in this material.

AB - We report zero-field-μSR studies of cerium-based heavy-fermion materials CeRh1-xIrxIn5. In the superconducting x = 0.75 and 1.0 compositions, muon spin relaxation functions were found to be temperature independent across Tc; no evidence for the presence of electronic magnetic moments was observed. The x = 0.5 material is antiferromagnetic below TN = 3.75 K and superconducting below Tc = 0.8 K. μSR spectra show the gradual onset of damped coherent oscillations characteristic of magnetic order below TN. At 1.65 K the total oscillating amplitude accounts for at least 85% of the sample volume. No change in precession frequency or amplitude is detected on cooling below Tc, indicating the microscopic coexistence of magnetism and superconductivity in this material.

KW - CeMIn

KW - F-electron magnetism

KW - Heavy-fermion

KW - Superconductivity

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U2 - 10.1016/S0921-4526(02)01640-X

DO - 10.1016/S0921-4526(02)01640-X

M3 - Article

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SN - 0921-4526

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SP - 390

EP - 393

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 1-4

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