Pressure tuning of structure, superconductivity, and novel magnetic order in the Ce-underdoped electron-doped cuprate 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">T</mml:mi></mml:mrow><mml:msup><mml:mrow /><mml:mo>′</mml:mo></mml:msup></mml:msup><mml:mtext>−</mml:mtext><mml:msub><mml:mi>Pr</mml:mi><mml:mrow><mml:mn>1.3</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>0.7</

Guguchia, Zurab; Adachi, Tadashi; Shermadini, Z.; Ohgi, T.; Chang, J.; Božin, Emil S.; Rohr, Fabian von; Santos, A. M. dos; Molaison, Jamie J.; Boehler, R.; Koike, Yasuhiro; Wieteska, Andrew; Frandsen, Benjamin A.; Morenzoni, E.; Amato, A.; Billinge, Simon J. L.; Uemura, Y. J.; Khasanov, R.

doi:10.1103/physrevb.96.094515

Cited by 8 publications

(3 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8e), reflecting a critical slowing of the Cu spin fluctuations with decreasing T. Below Tf, the deviation of (T) from the extrapolated p(T), as shown in Fig. 4b, demonstrates the build-up of the spin-glass (freezing) phase [28][29][30][31][32] . As evident from the inset of Fig.…”

Section: Hole Pocket With Antiferromagnetic Quantum Phase Fluctuationsmentioning

confidence: 99%

Interplay between Hole Superconductivity and Quantum Critical Antiferromagnetic Fluctuations in Electron-Doped Cuprates

Kim,

Song,

Lee

et al. 2023

Preprint

View full text Add to dashboard Cite

Antiferromagnetic spin fluctuations are the most promising candidate as the pairing glue of high critical temperature (Tc) superconductivity. However, many-body states and intertwined orders in cuprates have made it difficult to determine how electrons interact with fluctuating spins to form Cooper pairs. Recent experimental and theoretical studies have suggested spin fluctuation-driven quasiparticle band folding, but the relationship between the resultant Fermi pockets and superconductivity remains unclear. Here, we investigated this relationship in electron-doped Pr1−xLaCexCuO4±δ using angle-resolved photoemission and muon spin spectroscopy. By extracting the folded band component in the single-particle nodal band spectrum and analysing the muon relaxation rate, we discovered that Tc is proportional to the quasiparticle weight of the nodal hole pocket in the regime of the fluctuating antiferromagnetic ground state around a presumed quantum critical point. Our experimental and numerical observations highlight the significance of the marked interplay between the electron correlation and antiferromagnetic fluctuations in enhancing the hole pocket and consequently driving superconductivity.

show abstract

Section: Hole Pocket With Antiferromagnetic Quantum Phase Fluctuationsmentioning

confidence: 99%

Interplay between Hole Superconductivity and Quantum Critical Antiferromagnetic Fluctuations in Electron-Doped Cuprates

Kim,

Song,

Lee

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…A similar phenomenon was found by M. A. Baqiya, et al [2] They observed the RTFM in Bi2Sr2CaCu2O8+δ (BSCCO) nanoparticles (Tc = 80 K) at well above Tc and room temperature. Based on the previous studies, this magnetic property is a common characteristic of metal oxide nanoparticles [1,3,4] and it has been suggested to occur as a result of magnetic moments arising from the oxygen vacancies on the surface of nanoparticles [5,6].…”

Section: Introductionmentioning

confidence: 98%

Synchrotron X-Ray Absorption Spectroscopy (XAS) Studies on Structural and Magnetic Properties of T’-Pr2-xCexCuO4 Nanocrystals

Irfanita

Putra

Triono

et al. 2020

KEM

View full text Add to dashboard Cite

We have succeeded in synthesizing electron-doped cuprates T’-Pr2-xCexCuO4 (PCCO) with x = 0 and 0.10 nanocrystals prepared by the chemically dissolved method. Reduction annealing of the PCCO samples at 700°C under a flowing argon gas atmosphere has been performed for the removal of excess oxygen in the apical sites. The XRD data showed that the reduction annealing process decreases c-axis length indicating successful removal of the excess oxygen. The bond distortion of PCCO including coordination number and bond distance between the absorber atoms with the nearest neighboring atoms (Cu-O) was investigated by extended x-ray absorption fine structure (EXAFS) using Cu K-edge. The implication of our results is discussed on the basis of tremendous influence of oxygen vacancies on the magnetism of the nanosized T’-cuprates at the normal state.

show abstract

“…Its catalytic activity can be enhanced substantially by modification with suitable transition metals and more and more researchers have an interest in the field [14,15,16]. Cerium (Ce), by general assent, is a good promoter in perovskite lattice due to its two different valence states—Ce 4+ or Ce 3+ —high oxygen storage capability, and excellent redox properties [16,17,18,19]. For example, Wen et al [14] reported that Ce-doped LaCoO 3 samples exhibit good catalytic activity in the oxidation reaction of NO, with the highest conversion of 80% at about 300 °C.…”

Section: Introductionmentioning

confidence: 99%

DFT Analysis of NO Adsorption on the Undoped and Ce-Doped LaCoO3 (011) Surface

Gao

2019

Materials

View full text Add to dashboard Cite

Using the density functional theory (DFT) method, we investigated the adsorption of NO on the undoped and Ce-doped LaCoO3 (011) surface. According to our calculations, the best adsorption site is not changed after Ce doping. When the NO molecule is adsorbed on the perfect LaO-terminated LaCoO3 (011) surface, the most stable adsorption site is hollow-top, which corresponds to the hollow-NO configuration in our study. After the substitution of La with Ce, the adsorption energy of hollow-NO configuration is increased. For the perfect CoO2-terminated LaCoO3 (011) surface, it is found that Co-NO configuration is the preferential adsorption structure. Its adsorption energy can also be enhanced after Ce doping. When NO molecule is adsorbed on the undoped and Ce-doped LaO-terminated LaCoO3 (011) surface with hollow-NO configuration, it serves as the acceptor and electrons transfer from the surface to it in the adsorption process. On the contrary, for the Co-NO configuration of undoped and Ce-doped CoO2-terminated LaCoO3 (011) surface, NO molecule becomes the donor and loses electrons to the surface.

show abstract

Pressure tuning of structure, superconductivity, and novel magnetic order in the Ce-underdoped electron-doped cuprate T′−Pr1.3−xLa0.7

Cited by 8 publications

References 70 publications

Interplay between Hole Superconductivity and Quantum Critical Antiferromagnetic Fluctuations in Electron-Doped Cuprates

Interplay between Hole Superconductivity and Quantum Critical Antiferromagnetic Fluctuations in Electron-Doped Cuprates

Synchrotron X-Ray Absorption Spectroscopy (XAS) Studies on Structural and Magnetic Properties of T’-Pr<sub>2-x</sub>Ce<sub>x</sub>CuO<sub>4</sub> Nanocrystals

DFT Analysis of NO Adsorption on the Undoped and Ce-Doped LaCoO3 (011) Surface

Contact Info

Product

Resources

About