论文标题
使用补偿的抗fiferromagnets对超导的异质结构的磁控制
Magnetic control of superconducting heterostructures using compensated antiferromagnets
论文作者
论文摘要
由于在界面和整体上都缺乏净磁化，因此具有补偿界面的抗铁磁体似乎无法通过自由度自由度在相邻超导体中影响相变。我们在这里证明了这种断言是不正确的，这是通过证明将补偿的抗铁磁层耦合到超导体 - 铁磁性异质结构引入了控制超导相变的可能性。实际上，可以通过旋转界面平面内单个铁磁层的磁化来调节超导临界温度，尽管在没有抗铁磁层的情况下，该系统在磁化的旋转下是不变的。此外，我们预测超导相变会触发基态磁化的重新定位。我们的结果表明，补偿的抗铁磁界面实际上能够区分三胞胎库珀对的不同自旋极化。
Due to the lack of a net magnetization both at the interface and in the bulk, antiferromagnets with compensated interfaces may appear incapable of influencing the phase transition in an adjacent superconductor via the spin degree of freedom. We here demonstrate that such an assertion is incorrect by showing that proximity-coupling a compensated antiferromagnetic layer to a superconductor-ferromagnet heterostructure introduces the possibility of controlling the superconducting phase transition. The superconducting critical temperature can in fact be modulated by rotating the magnetization of the single ferromagnetic layer within the plane of the interface, although the system is invariant under rotations of the magnetization in the absence of the antiferromagnetic layer. Moreover, we predict that the superconducting phase transition can trigger a reorientation of the ground state magnetization. Our results show that a compensated antiferromagnetic interface is in fact able to distinguish between different spin-polarizations of triplet Cooper pairs.
