Manipulation of the magnetic properties in Er1−Co2 compounds by atomic vacancies

Zou, Jianfeng; Yan, Mi; Yao, Jinlei

doi:10.1016/j.jallcom.2015.01.122

Cited by 7 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is found that the application of a magnetic field shifts the anomaly to higher temperatures. These features resemble a field-induced ferromagnetic transition and are commonly observed regardless of whether the magnetism is based on itinerant-electrons (ErCo 2 , MnAs, etc) or localmoments (Gd 5 Si 2 Ge 2 , PrInNi 4 , etc) [33][34][35][36]. On the other hand, it is notable that a similar evolution of field-induced phase transition has been reported for YbCo 2 Zn 20 [2,37,38].…”

Section: Resultssupporting

confidence: 59%

Unusually strong electronic correlation and field-induced ordered phase in YbCo₂

Valenta

Tsujii

Yamaoka

et al. 2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

We report the first study of electrical resistivity, magnetization, and specific heat on YbCo2. The measurements on a single-phased sample of YbCo2 bring no evidence of magnetic ordering down to 0.3 K in a zero magnetic field. The manifestations of low Kondo temperature are observed. The specific heat value divided by temperature, C/T, keeps increasing logarithmically beyond 7 J/mol∙K2 with decreasing temperature down to 0.3 K without no sign of magnetic ordering, suggesting a very large electronic specific heat. Analysis of the magnetic specific heat indicates that the large portion of the low-temperature specific heat is not explained simply by the low Kondo temperature but is due to the strong intersite magnetic correlation in both the 3d and 4f electrons. Temperature-dependent measurements under static magnetic fields up to 7 T are carried out, which show the evolution of field-induced transition above 2 T. The transition temperature increases with increasing field, pointing to a ferromagnetic character. The extrapolation of the transition temperature to zero field suggests that YbCo2 is in the very proximity of the quantum critical point. These results indicate that in the unique case of YbCo2, the itinerant electron magnetism of Co 3d-electrons and the Kondo effect within the vicinity of quantum criticality of Yb 4f-local moments can both play a role.

show abstract

Section: Resultssupporting

confidence: 59%

Unusually strong electronic correlation and field-induced ordered phase in YbCo₂

Valenta

Tsujii

Yamaoka

et al. 2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…In this context, it is worth noting that the Er-deficient Er 1−x Co 2 have similar features to the as-atomized particles [34]: the increase of T C with the lattice contraction and the weakening of the first-order phase transition characteristic. Nevertheless, it seems unlikely that the as-atomized particles are in a non-stoichiometric composition as the original physical properties are restored by thermal annealing.…”

Section: Correlation Between Crystallographic and Magnetic Propertiesmentioning

confidence: 90%

Tunable Magnetic and Magnetocaloric Properties by Thermal Annealing in Erco2 Atomized Particles

et al. 2022

View full text Add to dashboard Cite

Large magnetocaloric entropy change in ferrimagnetic Er1-xCo2 systems at cryogenic temperatures: the role of erbium deficiency

et al. 2021

View full text Add to dashboard Cite

Manipulation of the magnetic properties in Er1−Co2 compounds by atomic vacancies

Cited by 7 publications

References 49 publications

Unusually strong electronic correlation and field-induced ordered phase in YbCo₂

Unusually strong electronic correlation and field-induced ordered phase in YbCo₂

Tunable Magnetic and Magnetocaloric Properties by Thermal Annealing in Erco2 Atomized Particles

Large magnetocaloric entropy change in ferrimagnetic Er1-xCo2 systems at cryogenic temperatures: the role of erbium deficiency

Contact Info

Product

Resources

About

Manipulation of the magnetic properties in Er1−Co2 compounds by atomic vacancies

Cited by 7 publications

References 49 publications

Unusually strong electronic correlation and field-induced ordered phase in YbCo2

Unusually strong electronic correlation and field-induced ordered phase in YbCo2

Tunable Magnetic and Magnetocaloric Properties by Thermal Annealing in Erco2 Atomized Particles

Large magnetocaloric entropy change in ferrimagnetic Er1-xCo2 systems at cryogenic temperatures: the role of erbium deficiency

Contact Info

Product

Resources

About

Unusually strong electronic correlation and field-induced ordered phase in YbCo₂

Unusually strong electronic correlation and field-induced ordered phase in YbCo₂