2013/10/28 by Haruka Taniguchi, Keigo Nishimura, Ryo Ishikawa +5 · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Antiferromagnetism #Chemistry #Condensed matter physics #Crystal structure #Crystallography #Ferromagnetism #Hydrostatic pressure #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetization #Materials science #Optics #Orthorhombic crystal system #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Thermodynamics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.88.205111
Accepted for publication in Phys. Rev. B
arxiv created 2013/10/28 · openalex publication_date 2013/11/12 · arxiv updated 2015/06/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have investigated the in-plane uniaxial pressure effect on the antiferromagnetic Mott insulator Ca2RuO4 from resistivity and magnetization measurements. We succeeded in inducing the ferromagnetic metallic phase at lower critical pressure than by hydrostatic pressure, indicating that the flattening distortion of the RuO6 octahedra is more easily released under in-plane uniaxial pressure. We also found a striking in-plane anisotropy in the pressure responses of various magnetic phases: although the magnetization increases monotonically with pressure diagonal to the orthorhombic principal axes, the magnetization exhibits peculiar dependence on pressure along the in-plane orthorhombic principal axes. This peculiar dependence can be explained by a qualitative difference between the uniaxial pressure effects along the orthorhombic a and b axes, as well as by the presence of twin domain structures.