J. Oitmaa

activity

19962023

most citedNew quantum phase transitions in the two-dimensional J1-J2 model

152 citations · 442 across the 13 of their papers we have counts for

collaborators

Showing 2009Show all

2 papers · 1 filter

cond-mat.str-el2009★ 36 cited

Spin-waves in the $J_{1 a} - J_{1 b} - J_{2}$ orthorombic square-lattice Heisenberg models: Application to the iron pnictide materials

R. Applegate, J. Oitmaa, R. R. P. Singh

Motivated by the observation of spatially anisotropic exchange constants in the iron pnictide materials, we study the spin-wave spectra of the $J_{1 a} - J_{1 b} - J_{2}$ Heisenberg mode…

cond-mat.str-el2009★ 2 cited

Binding of a mobile hole by an impurity potential in the t-J model: parity breaking

O. P. Sushkov, J. Oitmaa

We revisit the problem of a single hole moving in the background of the two dimensional Heisenberg antiferromagnet. The hole is loosely bound by an impurity potential. We show that…

Spin-waves in the J1a​−J1b​−J2​ orthorombic square-lattice Heisenberg models: Application to the iron pnictide materials

Binding of a mobile hole by an impurity potential in the t-J model: parity breaking

Spin-waves in the $J_{1 a} - J_{1 b} - J_{2}$ orthorombic square-lattice Heisenberg models: Application to the iron pnictide materials