The low temperature magnetic properties of potassium holmium double tungstate

Abstract

Abstract:The magnetic investigations of potassium holmium double tungstate KHo(WO 4 ) 2 have been performed. The results of measurements of magnetic susceptibility and magnetization as a function of both temperature (T = 0.5 -100 K) and magnetic field (up to 2 T) are presented. PACS (2008):

The specific heat of potassium holmium double tungstate

“…However, the experimental data obtained in field H ¼ 0.1 T allow us to assume the existence of magnetic phase transition (MPT) induced by applied magnetic field at temperatures below 0.6 K [20]. The increase of the specific heat and its shift towards higher temperatures with increasing magnetic field confirm this possibility (Figure 4).…”

“…It should be noted that the magnetic properties as well as the crystalline structure of the KHo(WO 4 ) 2 crystal have not been studied yet [18,19] except for the short communication [20]. In singlet magnets, an unusual magnetic behaviour is expected and it is difficult to predict the emerging and character of magnetic ordering.…”

Preparation, thermal stability and magnetic properties of new AgY1−xGdx(WO4)2 ceramic materials

“…$ 1 μm for Yb 3 þ , and $ 2 μm for Ho 3 þ and Tm 3 þ ions are the advantages of these materials [23][24][25][26][27][28][29][30][31][32][33]. Physical properties of alkali and trivalent rare earth double molybdates and tungstates both single crystals and powders were analyzed by many authors [34][35][36][37][38][39][40][41][42]. Their properties are the result of the following phenomena: spin-spin, electronspin and magneto-elastic interactions.…”

The magnetic properties of potassium holmium double tungstate

“…We want to attract attention on the behavior of magnetic field dependence of magnetization along the z axis. It is necessary to stress that experimental M(H) curves demonstrate an unusual hysteresis without coercive force and remanence magnetization [10].…”

“…It should be noted that magnetic properties of the KHo(WO 4 ) 2 crystal have been studied very rarely. There is only one paper [10], which describes the magnetic experi-mental results obtained along the crystallographic axes of potassium holmium double tungstate.…”