Antiferromagnetic order and Kondo-lattice behavior in single-crystalline<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mtext>Ce</mml:mtext></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mtext>RhSi</mml:mtext></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>

Szlawska, Maria; Kaczorowski, D.; Ślebarski, A.; Gulay, L. D.; Stȩpień‐Damm, J.

doi:10.1103/physrevb.79.134435

Cited by 24 publications

(21 citation statements)

References 41 publications

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“…χ 0 is a temperature independent susceptibility from the core diamagnetism, the van Vleck and Pauli paramagnetism, is the Curie constant and θ is the Weiss temperature. The relatively large absolute value of θ = −28.3 K may be attributed to the hybridization of the 4 f electronic states with the conduction band17. The derived effective moment μ eff = 2.52 μ B is almost equal to that of a free Ce 3+ ion, indicating the trivalent Ce ion and well localized moment of Ce-4 f 1 electrons at high temperature.…”

Section: Resultsmentioning

confidence: 86%

Antiferromagnetic Kondo lattice compound CePt3P

Chen

Wang

Zheng

et al. 2017

Sci Rep

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A new ternary platinum phosphide CePt3P was synthesized and characterized by means of magnetic, thermodynamic and transport measurements. The compound crystallizes in an antiperovskite tetragonal structure similar to that in the canonical family of platinum-based superconductors APt3P (A = Sr, Ca, La) and closely related to the noncentrosymmetric heavy fermion superconductor CePt3Si. In contrast to all the superconducting counterparts, however, no superconductivity is observed in CePt3P down to 0.5 K. Instead, CePt3P displays a coexistence of antiferromagnetic ordering, Kondo effect and crystalline electric field effect. A field-induced spin-flop transition is observed below the magnetic ordering temperature TN1 of 3.0 K while the Kondo temperature is of similar magnitude as TN1. The obtained Sommerfeld coefficient of electronic specific heat is γCe = 86 mJ/mol·K2 indicating that CePt3P is a moderately correlated antiferromagnetic Kondo lattice compound.

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Section: Resultsmentioning

confidence: 86%

Antiferromagnetic Kondo lattice compound CePt3P

Chen

Wang

Zheng

et al. 2017

Sci Rep

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“…Most compounds of the class R 2 TSi 3 (T¼ Pd, Rh, Ni, and Cu) exhibit a hexagonal AlB 2 -type crystallographic structure and interesting physical properties [1][2][3][4][5][6][7][8][9][10][11][12]. Among the lanthanides europium is special because it has a half-filled 4f shell.…”

Section: Introductionmentioning

confidence: 99%

Single crystal growth of Eu2CuSi3 intermetallic compound by the floating-zone method

Cao

Löser

Behr

et al. 2011

Journal of Crystal Growth

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“…On the hybridization strength -total electron concentration, |V | -n plane, w f is significantly enlarged in the three distinct regimes, which we identify respectively as the mixed-valence, Kondo/almost Kondo insulating, and the Kondo-lattice regimes (when f -electron concentration is close to the half-filling, i.e., when n f → 1). These physically distinct regimes are frequently discussed and identified in various experiments 2,11,[62][63][64][65][66] and in theory 19,33,67,68 . The structure of the paper is as follows.…”

Section: Introductionmentioning

confidence: 99%

Gutzwiller wave-function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states

2015

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The recently proposed diagrammatic expansion (DE) technique for the full Gutzwiller wave function (GWF) is applied to the Anderson lattice model. This approach allows for a systematic evaluation of the expectation values with full Gutzwiller wave function in the finite dimensional systems. It introduces results extending in an essential manner those obtained by means of standard Gutzwiller approximation (GA) scheme which is variationally exact only in infinite dimensions. Within the DE-GWF approach we discuss principal paramagnetic properties and their relevance to the heavy fermion systems. We demonstrate the formation of an effective, narrow f -band originating from atomic f -electron states and subsequently interpret this behavior as a direct itineracy of f -electrons; it represents a combined effect of both the hybridization and the correlations reduced by the Coulomb repulsive interaction. Such feature is absent on the level of GA which is equivalent to the zeroth order of our expansion. Formation of the hybridization-and electron-concentrationdependent narrow f -band rationalizes common assumption of such dispersion of f levels in the phenomenological modeling of the band structure of CeCoIn5. Moreover, it is shown that the emerging f -electron direct itineracy leads in a natural manner to three physically distinct regimes within a single model, that are frequently discussed for 4f -or 5f -electron compounds as separate model situations. We identify these regimes as: (i) mixed-valence regime, (ii) Kondo-insulator border regime, and (iii) Kondo-lattice limit when the f -electron occupancy is very close to the f -states half-filling, n f → 1. The nonstandard features of emerging correlated quantum liquid state are stressed.

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Antiferromagnetic order and Kondo-lattice behavior in single-crystallineCe2RhSi3

Cited by 24 publications

References 41 publications

Antiferromagnetic Kondo lattice compound CePt3P

Antiferromagnetic Kondo lattice compound CePt3P

Single crystal growth of Eu2CuSi3 intermetallic compound by the floating-zone method

Gutzwiller wave-function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states

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