Pressure dependence of the superconducting and magnetic transition temperatures in Sr2VO3FeAs

Holenstein, S.; Hummel, F.; Guguchia, Z.; Kamusella, S.; Barbero, N.; Ogino, H.; Shermadini, Z.; Khasanov, R.; Amato, A.; Shiroka, T.; Klauss, H-H; Morenzoni, E.; Johrendt, D. and Luetkens, H. (2021): Pressure dependence of the superconducting and magnetic transition temperatures in Sr2VO3FeAs. In: Physical Review B, Vol. 104, No. 10, 104507

Abstract

We report muon spin rotation (mu SR) and magnetization measurements on superconducting Sr2VO3FeAs under pressure. At ambient pressure, Sr2VO3FeAs undergoes an antiferromagnetic transition of the V moments at T-N and becomes superconducting at T-c < T-N. As a function of pressure, T-N initially decreases while T-c increases. Surprisingly, once T-N approximate to T-c at 0.6 GPa, T-N reverses its trend and increases together with T-c, which might indicate a cooperative coupling of the superconducting and the magnetic order.

• Item Type: Journal article
• Faculties: Chemistry and Pharmacy > Department of Chemistry
• Subjects: 500 Science > 540 Chemistry
• ISSN: 2469-9950
• Language: English