High-pressure synthesis, crystal structure, and magnetic properties of Ba3CuOs2O9

The triple perovskite Ba₃CuOs₂O₉ crystalizes into an orthorhombic structure (Cmcm ) and shows a manifest antiferromagnetic transition at 47 K [1], while it crystalizes into a hexagonal structure (P6₃/mmc) when treated under a high-pressure and high-temperature condition (typically 6 GPa and 1100 ^○C). The change of structure gains a 1.3% increase in structural density. The hexagonal phase was quenched at ambient condition and the magnetic and electrical properties were investigated via measurements of the ac and dc magnetic susceptibilities, electrical resistivity, and specific heat capacity. The data indicated that the magnetic transition temperature increased to 290 K by the structure change. We discuss details of the magnetic and electrical properties of the newly synthesized hexagonal Ba₃CuOs₂O₉.

[1] H. L. Feng and M. Jansen J Solid State Chem. 258, 776 (2018).

About APS

The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.

Headquarters 1 Physics Ellipse, College Park, MD 20740-3844 (301) 209-3200
Editorial Office 100 Motor Pkwy, Suite 110, Hauppauge, NY 11788 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700

Bulletin of the American Physical Society

APS March Meeting 2019

Volume 64, Number 2

Monday–Friday, March 4–8, 2019; Boston, Massachusetts

Session T70: Poster Session III(1:00pm-4:00pm)

Abstract: T70.00198 : High-pressure synthesis, crystal structure, and magnetic properties of Ba3CuOs2O9

Presenter:

Authors:

Follow Us

Engage

My APS

Information for

About APS

Abstract: T70.00198 : High-pressure synthesis, crystal structure, and magnetic properties of Ba₃CuOs₂O₉