Electrical resistivity measurements under high pressure for Nd3.5Sm0.5Ni3O8

Kobayashi, K.; Yamamoto, Hiroki; Nakata, Akitoshi; Uehara, M.

doi:10.7567/jjapcp.6.011106

Cited by 5 publications

(2 citation statements)

References 16 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…NMR measurements revealed 2D antiferromagnetic fluctuations [22], and both magnetic and charge-ordering phenomena were inferred from X-ray and neutron-diffraction (ND) measurements [23,24]. Semiconducting behavior has also been reported for Nd3.5Sm0.5Ni3O8, with a trend to increasing metallicity under pressure [25].…”

mentioning

confidence: 97%

Short-range magnetic interactions and spin-glass behavior in the quasi-two-dimensional nickelate Pr4Ni3O8

et al. 2020

View full text Add to dashboard Cite

The nickelate Pr 4 Ni 3 O 8 features quasi-two-dimensional layers consisting of three stacked square-planar NiO 2 planes, in a similar way to the well-known cuprate superconductors. The mixed-valent nature of Ni and its metallic properties makes it a candidate for potentially unconventional superconductivity. We have synthesized Pr 4 Ni 3 O 8 by topotactic reduction of Pr 4 Ni 3 O 10 in 10% hydrogen gas, and report on measurements of powder-neutron diffraction, magnetization, and muon-spin rotation (µSR). We find that Pr 4 Ni 3 O 8 shows complicated spin-glass behavior with a distinct magnetic memory effect in the temperature range from 2 to 300 K and a freezing temperature T s ≈ 68 K. Moreover, the analysis of µSR spectra indicates two magnetic processes characterized by remarkably different relaxation rates: a slowly relaxing signal, resulting from paramagnetic fluctuations of Pr/Ni ions, and a fast-relaxing signal, whose relaxation rate increases substantially below ≈ 70 K which can be ascribed to the presence of short-range correlated regions. We conclude that the complex spin-freezing process in Pr 4 Ni 3 O 8 is governed by these multiple magnetic interactions. It is possible that the complex magnetism in Pr 4 Ni 3 O 8 is detrimental to the occurrence of superconductivity.

show abstract

mentioning

confidence: 97%

Short-range magnetic interactions and spin-glass behavior in the quasi-two-dimensional nickelate Pr4Ni3O8

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Recently, we found that Nd 3.5 Sm 0.5 Ni 3 O 8 exhibits metallic behavior down to around 20 -40 K after intercalation and subsequent deintercalation treatment with sulfur (called as S-treatment hereafter) [18,19]. The synchrotron X-ray diffraction study suggests that the appearance of metallic behavior upon S-treatment is associated with the removal of additional apical oxygen [20], like the situation of T'-type high-T c cuprates.…”

Section: Introductionmentioning

confidence: 99%

Chemical Substitution Effect of High-T_c Superconductor Candidate R₄Ni₃O₈ (R: Rare-earth)

Miyatake

Shibutani

Hamada

et al. 2020

Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019)

Self Cite

View full text Add to dashboard Cite

R 4 Ni 3 O 8 (R: rare-earth) is a candidate for high-T c superconductor because its crystal structure and electronic state are very similar to high-T c cuprates. Our recent works have pointed out that, by intercalation-deintercalation treatment with sulfur, the additional oxygen which impedes the metallic conduction is removed and the metallic behavior shows up in Nd 3.5 Sm 0.5 Ni 3 O 8. However, the semiconducting tendency remains below about 20-40 K, suggesting that the removal of additional oxygen is not complete. In this study, Pr-doping to Nd site in Nd 4 Ni 3 O 8 was performed in order to completely remove additional oxygen. By Pr-substitution, the electrical resistivity decreases and maintains metallic behavior down to low temperature (2 K). Next, we performed carrier tuning by chemical substitution to Ni sites in order to bring the electronic states of Ni closer to that of Cu in high-T c cuprates. Although the resistivity increases by doping, metallic behavior is maintained, suggesting that the dopants might occupy the specific Ni sites. However, superconductivity is not observed down to 2 K.

show abstract

Theoretical investigation of superconductivity in trilayer square-planar nickelates

Nica

Krishna

et al. 2020

Phys. Rev. B

View full text Add to dashboard Cite

Electrical resistivity measurements under high pressure for Nd_3.5Sm_0.5Ni₃O₈

Cited by 5 publications

References 16 publications

Short-range magnetic interactions and spin-glass behavior in the quasi-two-dimensional nickelate Pr4Ni3O8

Short-range magnetic interactions and spin-glass behavior in the quasi-two-dimensional nickelate Pr4Ni3O8

Chemical Substitution Effect of High-T_c Superconductor Candidate R₄Ni₃O₈ (R: Rare-earth)

Theoretical investigation of superconductivity in trilayer square-planar nickelates

Contact Info

Product

Resources

About

Electrical resistivity measurements under high pressure for Nd3.5Sm0.5Ni3O8

Cited by 5 publications

References 16 publications

Short-range magnetic interactions and spin-glass behavior in the quasi-two-dimensional nickelate Pr4Ni3O8

Short-range magnetic interactions and spin-glass behavior in the quasi-two-dimensional nickelate Pr4Ni3O8

Chemical Substitution Effect of High-Tc Superconductor Candidate R4Ni3O8 (R: Rare-earth)

Theoretical investigation of superconductivity in trilayer square-planar nickelates

Contact Info

Product

Resources

About

Electrical resistivity measurements under high pressure for Nd_3.5Sm_0.5Ni₃O₈

Chemical Substitution Effect of High-T_c Superconductor Candidate R₄Ni₃O₈ (R: Rare-earth)