| Abstract: | The phase states of a non-Heisenberg two-dimensional ferromagnet are studied, in which the long-range magnetic order is stabilized by the magnetoelastic interaction. It is shown that in this system, together with the phases of nonzero magnetic order, there exists a quadrupolar phase characterized by a tensor order parameter at zero external field. The transition temperature from the quadrupolar phase to the paramagnetic phase is determined.Received: 24 November 2003, Published online: 18 June 2004PACS:
75.10.-b General theory and models of magnetic ordering - 75.30.Kz Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.) |
