25 citations · 68 across the 8 of their papers we have counts for
8 papers
K-space magnetism as the origin of superconductivity
Ekkehard Krüger
The nonadiabatic Heisenberg model presents a nonadiabatic mechanism generating Cooper pairs in narrow, roughly half-filled "superconducting bands" of special symmetry. Here we show…
Constraining Forces Stabilizing Superconductivity in Bismuth
Ekkehard Krüger
As shown in former papers, the nonadiabatic Heisenberg model presents a novel mechanism of Cooper pair formation generated by the strongly correlated atomic-like motion of the elec…
Constraining forces causing the Meissner effect
Ekkehard Krüger
As shown in former papers, the nonadiabatic Heisenberg model presents a novel mechanism of Cooper pair formation which is not the result of an attractive electron-electron interact…
Group theory of Wannier functions providing the basis for a deeper understanding of magnetism and superconductivity
Ekkehard Krüger, Horst P. Strunk
The paper presents the group theory of best localized and symmetry-adapted Wannier functions in a crystal of any given space group G or magnetic group M. Provided that the calculat…
Superconducting band stabilizing superconductivity in MgB2
Ekkehard Krüger
It is shown that the superconducting intermetallic compound MgB2 possesses a narrow, partly filled "superconducting band" with Wannier functions of special symmetry in its band str…
Stability of the superconducting state in YBa_2Cu_3O_7
Ekkehard Krüger
The nonadiabatic Heisenberg model (NHM) proposed as an extension of the Heisenberg model makes a contribution to the eigenstate problem of superconductivity. The Hamiltonian H^n de…