Specific Heat of a New Dense-Kondo System CeTIn (T=Ni, Pd, Pt)

Satoh, Kazuhiko; Fujita, Toyomi; Maeno, Y.; Uwatoko, Yoshiya; Fujii, H.

doi:10.1143/jpsj.59.692

Cited by 58 publications

(50 citation statements)

References 14 publications

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“…This identification was based on lattice parameters, magnetic susceptibility and electrical resistivity data. On the same grounds, CeNiln also falls in the mixed-valence category [12,15], albeit with a slightly larger specific heat coefficient (80 mJ K -2 molc~-1, as opposed to 55 mJ K-2 molc~-1 for CeRhln). However, CePdln and CePtln are clearly heavy-fermion compounds, with C/T values of 0.7 J K -2 molce -1 and exceeding 1 J K -2 molce -1 respectively, at 60 mK.…”

Section: Introductionmentioning

confidence: 94%

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Electronic properties of CePdxRh1−xIn

Brück

Nakotte

Bakker

et al. 1993

Journal of Alloys and Compounds

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As part of a systematic research programme on equiatomic ternary compounds of the type RTX (R is a rare earth, T a transition metal and X a metal out of the p block of the periodic table) crystallizing in the ZrNiAI structure, results for CePdxRh,_xln (x=0, 0.2, 0.4, 0.6, 0.8, 0.85, 0.9, 0.95, 1) are presented. The magnetic properties, specific heat and electrical resistivity as a function of magnetic field and temperature are reported. The development of the electronic properties from CeRhln with unstable 4f moments towards CePdln with localized 4f moments is discussed in terms of the influence on the valence state of Ce of the increase in the d-electron concentration due to gradual substitution of Rh in CeRhln by Pd. The almost trivalent state is found to be most favourable for the formation of the heavy-fermion state.

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Section: Introductionmentioning

confidence: 94%

“…Compounds of the type CeTIn (T is a late transition metal), which have been studied extensively in recent years [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], form in the hexagonal ZrNiA1 type structure ( Fig. 1), which is an ordered ternary derivative of the Fe2P structure.…”

Section: Introductionmentioning

confidence: 99%

Electronic properties of CePdxRh1−xIn

Brück

Nakotte

Bakker

et al. 1993

Journal of Alloys and Compounds

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“…In the absence of short range order, the reduction in S mag at T N is due to the partial lifting of the two fold degeneracy of the ground state above T N by Kondo effect. In such cases, one can show that S mag = S K (T N /T K ), where S K (t) is the entropy of a single ion Kondo impurity at the normalized Kondo temperature, t = T N /T K [16].…”

Section: B Resistivity Studiesmentioning

confidence: 99%

Antiferromagnetic ordering in the Kondo lattice systemYb2Fe3Si

et al. 2002

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Compounds belonging to the R 2 Fe 3 Si 5 series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant antiferromagnet superconductor Tm 2 Fe 3 Si 5 , the physical properties of Yb 2 Fe 3 Si 5 are largely unexplored. In this work, we attempt to provide a comprehensive study of bulk properties such as, resistivity, susceptibility and heat-capacity of a well characterized polycrystalline Yb 2 Fe 3 Si 5 .Our measurements indicate that Yb 3+ moments order antiferromagnetically below 1.7 K. Moreover, the system behaves as a Kondo lattice with large Sommerfeld coefficient (γ) of 0.5 J/Yb mol K 2 at 0.3 K, which is well below T N . The absence of superconductivity in Yb 2 Fe 3 Si 5 down to 0.3 K at ambient pressure is attributed to the presence of the Kondo effect.Ms number

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“…Our recent investigations concentrate on the CeTIn phases that crystallize in the hexagonal ZrNiAl type, and exhibit various properties [5][6][7][8], e.g. CeNiIn and…”

Section: Introductionmentioning

confidence: 99%

Electronic structure and magnetic properties of the compound CeCuIn

Szytuła

Kaczorowski

Kalychak

et al. 2008

Journal of Physics and Chemistry of Solids

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Magnetization, magnetic susceptibility, electrical resistivity, thermoelectric power and X-ray photoemission measurements were performed on a polycrystalline sample of CeCuIn. This compound crystallizes in a hexagonal structure of the ZrNiAl type. The magnetic data indicate that CeCuIn remains paramagnetic down to 1.9 K with a paramagnetic Curie temperature of -13 K and an effective magnetic moment equal to 2.5 µ B . The electrical resistivity has metallic character, yet in the entire temperature range studied here, it is a strongly nonlinear function of temperature. The

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Specific Heat of a New Dense-Kondo System CeTIn (T=Ni, Pd, Pt)

Cited by 58 publications

References 14 publications

Electronic properties of CePdxRh1−xIn

Electronic properties of CePdxRh1−xIn

Antiferromagnetic ordering in the Kondo lattice systemYb2Fe3Si

Electronic structure and magnetic properties of the compound CeCuIn

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