New phase boundary between magnetic and non-Fermi-liquid in Ce(Rh 1-xRux)3B2, for 0≤x≤0.4

E. Bauer; R. Hauser; A. Galatanu; A. Lindbaum; G. Hilscher; H. Sassik; H. Kirchmayr; J. G. Sereni; P. Rogl

doi:10.1063/1.367805

New phase boundary between magnetic and non-Fermi-liquid in Ce(Rh _1-xRu_x)₃B₂, for 0≤x≤0.4

E. Bauer, R. Hauser, A. Galatanu, A. Lindbaum, G. Hilscher, H. Sassik, H. Kirchmayr, J. G. Sereni, P. Rogl

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6 Citations (Scopus)

Abstract

A study of the temperature-dependent magnetic susceptibility and electrical resistivity ρ(T) (0.5-300 K) on single-phase alloys (CaCu₅ type), prepared by argon arc melting, reveals a magnetic phase transition with a nonmonotonous decrease of the ordering temperature from T_c=115 K for x=0 to T_c≈0 for x=0.40. A kink in the susceptibility at about 70 K indicates that ferromagnetism (at x<0.1) transforms to a complex magnetic order for 0.125≤x≤0.35. Above that concentration ρ(T)= ρ₀+ATⁿ changes from n≈2 to n≈1.5, a characteristic for non-Fermi-liquid behavior. Under pressure T_c stays almost constant for x=0.125 but dT_c/dp grows with increasing Ru content. On the contrary, applied fields up to 12 T do not affect T_c. Low-temperature specific heat and ac susceptibility for x=0.40 confirm the absence of long-range magnetic order down to 0.5 K. For x=0.35 C_p/T= 62 mJ/mol K at 1.5 K, a value which is three times larger than that of CeRh ₃B₂.

Original language	English
Pages (from-to)	6423-6425
Number of pages	3
Journal	Journal of Applied Physics
Volume	83
Issue number	11
DOIs	https://doi.org/10.1063/1.367805
Publication status	Published - 1998
Externally published	Yes

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@article{f87149a3ff814797bb6c418cff73c66a,

title = "New phase boundary between magnetic and non-Fermi-liquid in Ce(Rh 1-xRux)3B2, for 0≤x≤0.4",

abstract = "A study of the temperature-dependent magnetic susceptibility and electrical resistivity ρ(T) (0.5-300 K) on single-phase alloys (CaCu5 type), prepared by argon arc melting, reveals a magnetic phase transition with a nonmonotonous decrease of the ordering temperature from Tc=115 K for x=0 to Tc≈0 for x=0.40. A kink in the susceptibility at about 70 K indicates that ferromagnetism (at x<0.1) transforms to a complex magnetic order for 0.125≤x≤0.35. Above that concentration ρ(T)= ρ0+ATn changes from n≈2 to n≈1.5, a characteristic for non-Fermi-liquid behavior. Under pressure Tc stays almost constant for x=0.125 but dTc/dp grows with increasing Ru content. On the contrary, applied fields up to 12 T do not affect Tc. Low-temperature specific heat and ac susceptibility for x=0.40 confirm the absence of long-range magnetic order down to 0.5 K. For x=0.35 Cp/T= 62 mJ/mol K at 1.5 K, a value which is three times larger than that of CeRh 3B2.",

author = "E. Bauer and R. Hauser and A. Galatanu and A. Lindbaum and G. Hilscher and H. Sassik and H. Kirchmayr and Sereni, {J. G.} and P. Rogl",

year = "1998",

doi = "10.1063/1.367805",

language = "English",

volume = "83",

pages = "6423--6425",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "11",

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TY - JOUR

T1 - New phase boundary between magnetic and non-Fermi-liquid in Ce(Rh 1-xRux)3B2, for 0≤x≤0.4

AU - Bauer, E.

AU - Hauser, R.

AU - Galatanu, A.

AU - Lindbaum, A.

AU - Hilscher, G.

AU - Sassik, H.

AU - Kirchmayr, H.

AU - Sereni, J. G.

AU - Rogl, P.

PY - 1998

Y1 - 1998

N2 - A study of the temperature-dependent magnetic susceptibility and electrical resistivity ρ(T) (0.5-300 K) on single-phase alloys (CaCu5 type), prepared by argon arc melting, reveals a magnetic phase transition with a nonmonotonous decrease of the ordering temperature from Tc=115 K for x=0 to Tc≈0 for x=0.40. A kink in the susceptibility at about 70 K indicates that ferromagnetism (at x<0.1) transforms to a complex magnetic order for 0.125≤x≤0.35. Above that concentration ρ(T)= ρ0+ATn changes from n≈2 to n≈1.5, a characteristic for non-Fermi-liquid behavior. Under pressure Tc stays almost constant for x=0.125 but dTc/dp grows with increasing Ru content. On the contrary, applied fields up to 12 T do not affect Tc. Low-temperature specific heat and ac susceptibility for x=0.40 confirm the absence of long-range magnetic order down to 0.5 K. For x=0.35 Cp/T= 62 mJ/mol K at 1.5 K, a value which is three times larger than that of CeRh 3B2.

AB - A study of the temperature-dependent magnetic susceptibility and electrical resistivity ρ(T) (0.5-300 K) on single-phase alloys (CaCu5 type), prepared by argon arc melting, reveals a magnetic phase transition with a nonmonotonous decrease of the ordering temperature from Tc=115 K for x=0 to Tc≈0 for x=0.40. A kink in the susceptibility at about 70 K indicates that ferromagnetism (at x<0.1) transforms to a complex magnetic order for 0.125≤x≤0.35. Above that concentration ρ(T)= ρ0+ATn changes from n≈2 to n≈1.5, a characteristic for non-Fermi-liquid behavior. Under pressure Tc stays almost constant for x=0.125 but dTc/dp grows with increasing Ru content. On the contrary, applied fields up to 12 T do not affect Tc. Low-temperature specific heat and ac susceptibility for x=0.40 confirm the absence of long-range magnetic order down to 0.5 K. For x=0.35 Cp/T= 62 mJ/mol K at 1.5 K, a value which is three times larger than that of CeRh 3B2.

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DO - 10.1063/1.367805

M3 - Article

AN - SCOPUS:0008709473

SN - 0021-8979

VL - 83

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

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ER -

New phase boundary between magnetic and non-Fermi-liquid in Ce(Rh _1-xRu_x)₃B₂, for 0≤x≤0.4

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