All-In-All-Out Magnetic Domains: X-Ray Diffraction Imaging and Magnetic Field Control

作者：Tardif Samuel^*; Takeshita Soshi; Ohsumi Hiroyuki; Yamaura Jun ichi; Okuyama Daisuke; Hiroi Zenji; Takata Masaki; Arima Taka hisa

来源：Physical Review Letters, 2015, 114(14): 147205.

DOI：10.1103/PhysRevLett.114.147205

Long-range noncollinear all-in-all-out magnetic order has been directly observed for the first time in real space in the pyrochlore Cd2Os2O7 using resonant magnetic microdiffraction at the Os L-3 edge. Two different antiferromagnetic domains related by time-reversal symmetry could be distinguished and have been mapped within the same single crystal. The two types of domains are akin to magnetic twins and were expected-yet unobserved so far-in the all-in-all-out model. Even though the magnetic domains are antiferromagnetic, we show that their distribution can be controlled using a magnetic field-cooling procedure.

• 出版日期2015-4-8
• 单位中国地震局; RIKEN