Coexistence and coupling of ferroelectricity and ferromagnetism in an oxide two-dimensional electron gas

The dataset contains X-ray absorption spectroscopy (XAS), electric polarization and magnetotransport measurements obtained on LaAlO3/EuTiO3/Ca:SrTiO3 heterostructures, at which interface a two-dimensional electron gas appears. X-ray magnetic circular dichroism (XMCD) extracted from the XAS data are also included, as well as X-ray linear dichroism (XLD) alongside atomic multiplet calculations for two sets of parameters corresponding to "up" and "down" remanent polarization states (data of Fig. 1 and 2).本数据集包含针对铝酸镧(LaAlO₃)/钛酸铕(EuTiO₃)/钙掺杂钛酸锶(Ca:SrTiO₃)异质结构开展的X射线吸收光谱（X-ray absorption spectroscopy, XAS）、电极化与磁输运测量数据，该异质结构的界面处存在二维电子气。此外，数据集还收录了从XAS数据中提取得到的X射线磁圆二色谱（X-ray magnetic circular dichroism, XMCD）与X射线线二色谱（X-ray linear dichroism, XLD），以及对应于“向上”和“向下”剩余极化态的两组参数的原子多重态计算结果（对应图1与图2的数据）。