论文标题
二维手性XY Ferromagnets和逆Berezinskii-Kosterlitz-无尽的过渡中的涡旋晶格
Vortex lattice in two-dimensional chiral XY ferromagnets and the inverse Berezinskii-Kosterlitz-Thouless transition
论文作者
论文摘要
在这封信中，我们将表明，在适当调制的Dzyaloshinskii-Moriya（DM）相互作用的情况下，$ u（1）$ u（1）$ wortex-antivortex晶格在低温下出现了多种DM相互作用。更重要的是，在以交换相互作用为主的区域中，发生标准的BKT转换。在相反的策略中，以DM相互作用为主的是，发生了一种反向BKT转变（IBKT）。随着温度的升高，涡旋 - 抗体晶格晶格通过对涡旋 - 抗体对歼灭开始熔化，以一种“反向” BKT过渡。
In this Letter we will show that, in the presence of a properly modulated Dzyaloshinskii-Moriya (DM) interaction, a $U(1)$ vortex-antivortex lattice appears at low temperatures for a wide range of the DM interaction. Even more, in the region dominated by the exchange interaction, a standard BKT transition occurs. In the opposite regime, the one dominated by the DM interaction, a kind of inverse BKT transition (iBKT) takes place. As temperature rises, the vortex-antivortex lattice starts melting by annihilation of pairs of vortex-antivortex, in a sort of "inverse" BKT transition.
