Zhang Wei, de Melo C A R Sá
School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
Phys Rev Lett. 2006 Jul 28;97(4):047001. doi: 10.1103/PhysRevLett.97.047001. Epub 2006 Jul 25.
We discuss the possibility of the coexistence of spin density waves (antiferromagnetism) and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. We focus on the case of quasi-one-dimensional metals, where it is known that antiferromagnetism is in close proximity to triplet superconductivity in the pressure versus temperature phase diagram. Over a range of pressures, we propose an intermediate nonuniform phase consisting of antiferromagnetic and triplet superconducting orders. In the coexistence region, we propose a flop transition in the spin density wave order parameter vector, which affects the nature of the superconducting state and leads to the appearance of several new phases.
我们讨论自旋密度波（反铁磁性）与三重态超导共存的可能性，这是一类广泛系统中的一个特殊例子，其中磁性与超导之间的相互作用很重要。我们关注准一维金属的情况，在压力-温度相图中，已知反铁磁性与三重态超导非常接近。在一定压力范围内，我们提出一个由反铁磁序和三重态超导序组成的中间非均匀相。在共存区域，我们提出自旋密度波序参量矢量中的一个翻转转变，它会影响超导态的性质并导致几个新相的出现。
