K. Wohlfeld

activity

20062008

most citedAbsence of Hole Confinement in Transition Metal Oxides with Orbital Degeneracy

66 citations · 83 across the 3 of their papers we have counts for

collaborators

3 papers

cond-mat.str-el2008★ 66 cited

Absence of Hole Confinement in Transition Metal Oxides with Orbital Degeneracy

M. Daghofer, K. Wohlfeld, A. M. Oles +2

We investigate the spectral properties of a hole moving in a two-dimensional Hubbard model for strongly correlated t_2g electrons. Although superexchange interactions are Ising-lik…

cond-mat.str-el2007★ 16 cited

Origin of charge density wave in the coupled spin ladders in Sr $_{14 - x}$ Ca $_{x}$ Cu $_{24}$ O $_{41}$

Krzysztof Wohlfeld, Andrzej M. Oles, George A. Sawatzky

We formulate a d-p multiband charge transfer model for Cu $_{2}$ O $_{5}$ coupled spin ladders, relevant for Cu $_{2}$ O $_{3}$ plane of Sr $_{14 - x}$ Ca $_{x}$ Cu $_{24}$ O $_{41}$ , and solve it using Ha…

cond-mat.str-el2006★ 1 cited

Charge density wave in the spin ladder of Sr $_{14 - x}$ Ca $_{x}$ Cu $_{24}$ O $_{41}$

Krzysztof Wohlfeld, Andrzej M. Oles, George A. Sawatzky

We consider a multiband charge transfer model for a single spin ladder describing the holes in Sr $_{14 - x}$ Ca $_{x}$ Cu $_{24}$ O $_{41}$ . Using Hartree-Fock approximation we show how the…

Absence of Hole Confinement in Transition Metal Oxides with Orbital Degeneracy

Origin of charge density wave in the coupled spin ladders in Sr14−x​Cax​Cu24​O41​

Charge density wave in the spin ladder of Sr14−x​Cax​Cu24​O41​

Origin of charge density wave in the coupled spin ladders in Sr $_{14 - x}$ Ca $_{x}$ Cu $_{24}$ O $_{41}$

Charge density wave in the spin ladder of Sr $_{14 - x}$ Ca $_{x}$ Cu $_{24}$ O $_{41}$