Analogy between the "Hidden Order" and the Orbital Antiferromagnetism in URu${}_{2-x}$Fe${}_x$Si${}_2$

H. -H. Kung, S. Ran, N. Kanchanavatee +6

We study URu${}_{2-x}$Fe${}_x$Si${}_2$, in which two types of staggered phases compete at low temperature as the iron concentration $x$ is varied: the nonmagnetic "hidden order" (HO) pha…