论文标题
确认Shastry-Sutherland模型的高压相图
Confirming the high pressure phase diagram of the Shastry-Sutherland model
论文作者
论文摘要
进行了MUON自旋旋转（$ $ $+SR）研究，以研究SRCU2（BO3）2（SCBO）的磁性特性作为温度/压力的函数。零场和横向场中的测量确认在高压和低温下没有远程磁性。这些测量结果表明，在21 kbar以上的Cu自旋波动特性的变化与形成plaquette相的形成一致，如先前通过非弹性中子中子散射测量结果所暗示的。 SCBO是Shatry-Sutherland模型的唯一已知的实现，因此介导二聚体和抗铁磁相的基态非常像是一个斑块状态。
A Muon Spin Rotation ($μ$+SR) study was conducted to investigate the magnetic properties of SrCu2(BO3)2 (SCBO) as a function of temperature/pressure. Measurements in zero field and transverse field confirm the absence of long range magnetic order at high pressures and low temperatures. These measurements suggest changes in the Cu spin fluctuations characteristics above 21 kbar, consistent with the formation of a plaquette phase as previously suggested by inelastic neutron scattering measurements. SCBO is the only known realisation of the Shatry-Sutherland model, thus the ground state mediating the dimer and antiferromagnetic phase is likekly to be a plaquette state.
