AI Article Synopsis
- The material Ca(2)RuO(4) is characterized as a spin-one Mott insulator under normal pressure, but transitions to a metallic ferromagnet with a Curie temperature of 28 K under high pressure conditions.
- At pressures between 90 and 140 kbar, it exhibits a significant drop in resistivity and ac susceptibility near 0.4 K when subjected to low magnetic fields, signaling potential changes in its electronic properties.
- These findings suggest that Ca(2)RuO(4) is weakly superconducting and exists on the verge of a quasi-2D ferromagnetic state, indicating a complex interplay of magnetic and superconducting behaviors.
Article Abstract
The layered perovskite Ca(2)RuO(4) is a spin-one Mott insulator at ambient pressure and exhibits metallic ferromagnetism at least up to ∼ 80 kbar with a maximum Curie temperature of 28 K. Above ∼ 90 and up to 140 kbar, the highest pressure reached, the resistivity and ac susceptibility show pronounced downturns below ∼ 0.4 K in applied magnetic fields of up to ∼ 10 mT. This indicates that our specimens of Ca(2)RuO(4) are weakly superconducting on the border of a quasi-2D ferromagnetic state.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0953-8984/22/5/052202 | DOI Listing |
Publication Analysis
Top Keywords
border quasi-2d
8
evidence superconductivity
4
superconductivity border
4
quasi-2d ferromagnetism
4
ferromagnetism ca2ruo4
4
ca2ruo4 high
4
high pressure
4
pressure layered
4
layered perovskite
4
perovskite ca2ruo4
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!