Error message

Notice: Undefined offset: 0 in include() (line 35 of /home/it/www/www-icts/sites/all/themes/riley/templates/views/views-view-fields--related-file-field-collection-view.tpl.php).
Kanika Pasrija (Indian Institute of Science Education and Research, Mohali)
Date & Time
Wed, 09 January 2019, 10:00 to 10:45
Amal Raychaudhuri Meeting Room, ICTS Campus, Bangalore

In recent years, various forms of non-collinear and non-coplanar magnetic orderings have been reported in transition metal oxides. Interestingly, the origin of various application-oriented phenomena, such as multiferroicity, magnetocaloric effect, and anomalous Hall effect is found to be related to such unusual magnetic order [1, 2]. In this presentation, we explore the possibility of unconventional magnetic order in models of magnetism, namely, the Heisenberg model, the Kondo-lattice model and the Hubbard model. In addition, we also study the possibility of spin-charge ordered phases in the extended Hubbard Hamiltonian [3]. Further, exotic magnetic orderings in Kiteav materials in which bond-directional Ising-like magnetic exchange interactions are dominant will be discussed. The potential candidates for such systems include iridates of type A2IrO3 with A=Na, Li, α-RuCl3 and Ba3IrTi2O9 [4]. Finally, we explore the role of magnetic/non-magnetic impurities in clean Kiteav materials which is expected to lead to glassy state [5, 6].


[1] T. Kimura, Nature, 426(6962):55–58, 2003.

[2] Y. Taguchi et. al, Science, 291(5513):2573–2576, 2001.

[3] K. Pasrija and S. Kumar, Phys. Rev. B, 93, 195110, 2016.

[4] Simon Trebst, arXiv:1701.07056, 2017.

[5] S. Manni, Y. Tokiwa, and P. Gegenwart, Phys. Rev. B, 89:241102, Jun 2014.

[6] Hechang Lei et al., Phys. Rev. B, 89: 020409, Jan 2014.