Schedule Nov 20, 2007
Experimentally Motivated Problems in Some Highly Frustrated Rare-earth Magnetic Materials
Michel Gingras, University of Waterloo & KITP

There exist a fair number of insulating magnetic materials where the magnetic species is a 4f (rare-earth) element and which have been long known to display interesting and intriguing magnetic and thermodynamic behaviors. Examples include the three-dimensional Gd3Ga5O12 garnet (GGG) lattice of corner-sharing tetrahedra, the LiHo_xY_{1-x}F4 Ising material in a transverse magnetic field (TFIM), and a number of pyrochlore systems such as the Tb2Ti2O7 spin liquid, the spin Dy2Ti2O7 and Ho2Ti2O7 spin ices and the Gd2(Ti,Sn)2O7 long-range ordered systems. In this talk, I will review some of the problems motivated by experiments on these systems, discuss tentative explanations of what is maybe going on and emphasize what we do not understand.


Other video options

To begin viewing slides, click on the first slide below. (Or, view as pdf.)

[01] [02] [03] [04] [05] [06] [07] [08] [09] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80]

Author entry (protected)