Huang, C. L.Tseng, K. F.Chou, C. C.Mukherjee, S.Her, J. L.Matsuda, Y. H.Kindo, K.Berger, H.Yang, H. D.2011-12-162011-12-162011-12-16201110.1103/PhysRevB.83.052402https://infoscience.epfl.ch/handle/20.500.14299/74423WOS:000287359500002dc and ac magnetization measurements were performed on single-crystal Cu2OSeO3 under magnetic field (H) and hydrostatic pressure (P) conditions. Increasing H shifts the ferrimagnetic transition observed at T-C similar to 60 K to a higher-temperature region. Moreover, the T-C increases linearly and magnetization is enhanced with P. Features of the ladder in the M-vs-H curve or the peak in the dM/dH-vs-H curve are observed at H-SF similar to 0.5 kOe, suggesting a competing ordered state under magnetic fields below T-C. Remarkably, a second shoulder is observed at similar to 1 kOe in the dM/dH-vs-H curve, revealing another metastable spin-ordered state in Cu2OSeO3. This state is retained and enhanced by applying pressure. As H rises to 55 T, no further slope changes in the M-H curve are observed. These magnetic properties indicate a complex spin orientation in the geometrically spin-frustrated system Cu2OSeO3.Magnetic-PropertiesTransportPressuretext::journal::journal article::research article