Observation of the coexistence of superconductivity and long-range magnetic order in TmRh4B4

Hamaker, H. C.; MacKay, H. B.; Torikachvili, M. S.; Woolf, L. D.; Maple, M. B.; Odoni, W.; Ott, H. R.

doi:10.1007/bf00117843

Cited by 33 publications

(4 citation statements)

References 39 publications

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“…8. At higher temperatures, H c2 ðTÞ is non-monotonic with a weak maximum of H c2 $ 0:45 T at T = 4.1 K. Similar non-monotonic behavior was observed in the H c2 ðTÞ curves for the antiferromagnetic superconducting compounds TmRh 4 B 4 [91] and Er 1.2 Mo 6 S 8 [77]. In the case of Er 1.2 Mo 6 S 8 , this behavior has been attributed to an increase in the magnetization from the sublattice of Er ions [24], leading to increased pair-breaking.…”

Section: Coexistence Of Antiferromagnetic Order and Superconductivitysupporting

confidence: 69%

“…7 for the compounds RERh 4 B 4 (except for the compounds PmRh 4 B 4 and EuRh 4 B 4 that have not been synthesized). It is evident that the compounds containing RE ions with partially-filled 4f-electron shells all undergo some type of magnetic ordering below T c at temperatures T M or T N $ 1 K. In particular, antiferromagnetic order is observed for the superconducting compounds RERh 4 B 4 (RE = Ce [94], Pr [94], Nd [87,90], Sm [88], Tm [91,92]) while ferromagnetic order is observed for the superconducting compound ErRh 4 B 4 [86,89].…”

Section: Ternary Compounds: Magnetically-ordered Superconductorsmentioning

confidence: 94%

“…11 and the antiferromagnetic superconducting compounds TmRh 4 B 4 [91] and Er 1.2 Mo 6 S 8 [77] (see Section 3.1.3). The maxima in the H c2 (T) curves occur at temperatures well above the magnetic ordering temperatures and correspond to the magnetization from the sublattice of RE ions which increases with increasing H T via the Brillouin function and acts in concert with the applied magnetic field H as a superconducting electron pair-breaker [131,156].…”

Section: Upper Critical Fields Of Rare Earth Borocarbide Superconductorsmentioning

confidence: 99%

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Conventional magnetic superconductors

Wolowiec

White

Maple

2015

Physica C: Superconductivity and its Applications

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a b s t r a c tWe discuss several classes of conventional magnetic superconductors including the ternary rhodium borides and molybdenum chalcogenides (or Chevrel phases), and the quaternary nickel-borocarbides. These materials exhibit some exotic phenomena related to the interplay between superconductivity and long-range magnetic order including: the coexistence of superconductivity and antiferromagnetic order; reentrant and double reentrant superconductivity, magnetic field induced superconductivity, and the formation of a sinusoidally-modulated magnetic state that coexists with superconductivity. We introduce the article with a discussion of the binary and pseudobinary superconducting materials containing magnetic impurities which at best exhibit short-range ''glassy'' magnetic order. Early experiments on these materials led to the idea of a magnetic exchange interaction between the localized spins of magnetic impurity ions and the spins of the conduction electrons which plays an important role in understanding conventional magnetic superconductors. These advances provide a natural foundation for investigating unconventional superconductivity in heavy-fermion compounds, cuprates, and other classes of materials in which superconductivity coexists with, or is in proximity to, a magnetically-ordered phase.

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Section: Coexistence Of Antiferromagnetic Order and Superconductivitysupporting

confidence: 69%