Multiple magnetic structures of correlated Ce ions in intermetallic CeAu<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>Ge<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>

Singh, Deepak; Thamizhavel, A.; Lynn, J. W.; Dhar, S. K.; Hermann, T.

doi:10.1103/physrevb.86.060405

Cited by 10 publications

(3 citation statements)

References 21 publications

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“…The results presented do not exclude a complex magnetic structure below 11K. Note that incommensurate magnetic ordering is observed in a number of Kondo and heavy-fermion systems (see, e.g., [33,34]).…”

Section: Thermodynamic and Transport Propertiescontrasting

confidence: 62%

Anomalous ferromagnetism and non-Fermi-liquid behavior in the Kondo lattice CeRuSi2

et al. 2013

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The structural, electronic and magnetic properties of the Kondo-lattice system CeRuSi2 are experimentally investigated and analyzed in the series of other ternary cerium compounds. This system is shown to be an excellent model system demonstrating coexistence of the Kondo effect and anomalous ferromagnetism with a small magnetic moment which is confirmed by magnetic and µSR measurements. Data on specific heat, resistivity, heat conductivity and Seebeck coefficient are presented. Being deduced from the resistivity and specific heat data, a non-Fermi-liquid behavior is observed at low temperatures, which is unusual for a ferromagnetic Kondo system. A comparison with other magnetic Kondo lattices is performed.

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Section: Thermodynamic and Transport Propertiescontrasting

confidence: 62%

Anomalous ferromagnetism and non-Fermi-liquid behavior in the Kondo lattice CeRuSi2

et al. 2013

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“…[21] Many pnictide materials of lanthanide family are known to exhibit multiple magnetic transitions. [25,26] Neutron based study of EuMn 2 As 2 will help us in developing a comprehensive understanding of this complex behavior. Future research works, especially inelastic neutron scattering measurements on large single crystal of EuMn 2 As 2 , are highly desirable.…”

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confidence: 99%

Spin correlation in trigonal EuMn2As2

et al. 2019

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The trigonal structure of EuMn2As2 is an anomaly in the tetragonal 122-type pnictide family. We report detailed investigation of the underlying magnetic correlations in single crystal EuMn2As2 using high resolution elastic neutron scattering measurements. The system undergoes through two successive antiferromagnetic transitions at T = 135 K and 14.4 K, respectively. Numerical modeling of the experimental data reveals the long range antiferromagnetic correlation of Mn-ions in the a − b plane below TN 1 = 135 K. Mn spins are aligned closer to the diagonal axis of the unit cell. The lower temperature transition, below TN 2 = 14.4 K, is found to arise due to the long range antiferromagnetic correlation of Eu spins that are rotated by θ =55 degree from the c-axis of the unit cell. arXiv:1807.10968v2 [cond-mat.str-el] 31 Jul 2018

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“…Many Ce‐based heavy electron systems tend to exhibit spin density wave order . However, only few of them are found to manifest a quantum critical ground state at T → 0 K .…”

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confidence: 99%

Microscopic Nature of Magnetic Ground State in CeAuSb₂

Yumnam

Chen

Zhao

et al. 2019

Physica Rapid Research Ltrs

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The synergistic investigation of ground‐state magnetic correlation in the single‐crystal heavy fermion compound CeAuSb2 using detailed neutron scattering measurements and density functional calculations is reported. Unlike the previous reports of single antiferromagnetic transition at TN ≈ 6 K, three successive transitions with distinct critical exponents at TN = 5.3, 4.46, and 3.76 K, respectively, are detected in CeAuSb. The low‐temperature ground‐state magnetic correlation is described by the spin density wave order in the basal plane with propagation wave vector τ = (0.135, 0.135, 0.5) rlu. The spin density wave order arises due to the nesting of hole pockets in the Fermi surface, with parallel surfaces being separated by the experimentally found propagation vector τ. The comprehensive investigation of magnetic ground‐state properties is expected to provide new insights in understanding the emerging quantum magnetism in this system, including the debated quantum critical state and magnetic field‐induced metamagnetic transitions at low temperature.

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Multiple magnetic structures of correlated Ce ions in intermetallic CeAu2Ge2

Cited by 10 publications

References 21 publications

Anomalous ferromagnetism and non-Fermi-liquid behavior in the Kondo lattice CeRuSi2

Anomalous ferromagnetism and non-Fermi-liquid behavior in the Kondo lattice CeRuSi2

Spin correlation in trigonal EuMn2As2

Microscopic Nature of Magnetic Ground State in CeAuSb₂

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Multiple magnetic structures of correlated Ce ions in intermetallic CeAu2Ge2

Cited by 10 publications

References 21 publications

Anomalous ferromagnetism and non-Fermi-liquid behavior in the Kondo lattice CeRuSi2

Anomalous ferromagnetism and non-Fermi-liquid behavior in the Kondo lattice CeRuSi2

Spin correlation in trigonal EuMn2As2

Microscopic Nature of Magnetic Ground State in CeAuSb2

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Product

Resources

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Microscopic Nature of Magnetic Ground State in CeAuSb₂