Rare-Earth Nickel Borocarbides

Müller, K.‐H.; Schneider, M.; Fuchs, G.; Drechsler, S.‐L.

doi:10.1016/s0168-1273(07)38004-5

Cited by 11 publications

(5 citation statements)

References 726 publications

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“…During this proce-XC [50,324] XP [152] À [50] a: Origin of unit cell data: XP: X-ray diffraction on powder, XC: X-ray diffraction on crystal, NP: Neutron diffraction on powder b: Removed from diagrams due to inconsistent data c: Never synthesized, unit cell parameters only predicted based on the data of the RNi 2 [B 2 C] series d: Double re-entrance: superconductivity nearly disappears at 6 K, re-emerging below 5 K e: According to [26], apparently taken from figure in [147] dure small single crystals were occasionally obtained. For some compounds rapid quenching was reported to be necessary to obtain samples of reasonable purity and annealing is thus counterproductive, e.g., for ScNi 2 [5].…”

Section: Borocarbides Rm 2 [B 2 C] and Rm[bc]mentioning

confidence: 99%

“…Unfortunately, one reference only gives a diagram of the unit cell parameters as a function of the rare-earth metal radius, but no concrete values. Although parameters might be extracted from this plot [26], the resulting data were disregarded in Fig. 7.…”

Section: Fementioning

confidence: 99%

“…This review is dedicated to chemistry, crystal chemistry and physical properties of borocarbides and nitridoborates with the general compositions RM[BC], RM 2 [B 2 C], (A,R)M [BN] and R 3 M 2 [BN 2 ]N. Since recent reviews [22][23][24][25][26][27][28] gather and discuss data for the borocarbides RNi 2 [B 2 C] with special focus on superconductivity, magnetism and the interplay of these two phenomena we are not going into too much detail on those properties, but refer the interested reader to these references. Particularly the huge number of studies on dependence of physical properties on partial elemental substitution in compounds RM 2 [B 2 C] is not covered.…”

Section: Introductionmentioning

confidence: 99%

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Rare-earth metal transition metal borocarbide and nitridoborate superconductors

Niewa¹,

Shlyk²,

Blaschkowski

2011

Zeitschrift Für Kristallographie

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Abstract. Few years after the discovery of superconductivity in high-T c cuprates, borocarbides and shortly after nitridoborates with reasonably high T c s up to about 23 K attracted considerable attention. Particularly for the rareearth metal series with composition RNi 2 [B 2 C] it turned out, that several members exhibit superconductivity next to magnetic order with both T c above or below the magnetic ordering temperature. Therefore, these compounds have been regarded as ideal materials to study the interplay and coexistence of superconductivity and long range magnetic order, due to their comparably high ordering temperatures and similar magnetic and superconducting condensation energies. This review gathers information on the series

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Section: Borocarbides Rm 2 [B 2 C] and Rm[bc]mentioning

confidence: 99%

Section: Fementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rare-earth metal transition metal borocarbide and nitridoborate superconductors

Niewa¹,

Shlyk²,

Blaschkowski

2011

Zeitschrift Für Kristallographie

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“…Two decades later, during the 1990s, the rare-earth nickel borocarbides RE Ni 2 B 2 C have been added to the family of magnetic superconductors, see reviews [15,16,29,30]. Distinctive features of these materials significantly expanded and enriched the field of coexistence of superconductivity and magnetic order.…”

Section: Introductionmentioning

confidence: 99%

Helical structures in layered magnetic superconductors due to indirect exchange interactions mediated by interlayer tunneling

Koshelev

2019

Phys. Rev. B

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Motivated by the recent discovery of helical magnetic structure in RbEuFe4As4, we investigate interlayer ordering of magnetic moments in materials composed of spatially-separated superconducting and ferromagnetically-aligned layers. We consider the interplay between the normal and superconducting indirect exchange interaction mediated by tunneling between the conducting layers. We elaborate a recipe to evaluate the normal interlayer interaction via two-dimensional density of states of an isolated layer and demonstrate that for bands with small fillings, such interaction is typically ferromagnetic and short-range. The nearest-layer interaction is proportional to the ratio of the interlayer hopping and in-plane band width squared. On the other hand, the superconducting contribution always gives antiferromagnetic interaction and may extend over several layers when the interlayer hopping energy exceeds the superconducting gap. The frustration caused by the interplay between the normal and superconducting parts may lead to spiral ground-state magnetic configuration. The four-fold in-plane anisotropy may lock the rotation angle between the moments in the neighboring layers to 90 • , as it was observed in RbEuFe4As4. arXiv:1910.01609v3 [cond-mat.supr-con]

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“…In particular, the interaction between rare earth induced magnetism and superconductivity has been studied in detail. The results have been published in several extensive review articles [5][6][7][8][9]. During the years, all those compounds have been synthesized as single crystals using different methods.…”

Section: Introductionmentioning

confidence: 99%