119 citations · 236 across the 6 of their papers we have counts for
6 papers
Systematic study of the hidden order in URuSi as a multipolar order; the role of triakontadipoles
Oscar Granas, Francesco Cricchio, Lars Nordstrom
A systematic search for possible order parameters of the so-called hidden order of URuSi is conducted. Among the possible candidates that do fulfill the experimental sy…
The low spin moment in LaOFeAs is due to a hidden multipole order caused by spin orbital ordering
Francesco Cricchio, Oscar Granas, Lars Nordstrom
An antiferro-magnetic (AF) low moment solution, 0.4 /Fe, is found in the case of LaOFeAs for an intermediately strong Coulomb interaction of 2.5--3.0 eV. This sol…
Itinerant magnetic multipole moments of rank five, triakontadipoles, as the hidden order in URuSi
Francesco Crichhio, fredrik Bultmark, Oscar Granas +1
A broken symmetry ground state without any magnetic moments has been calculated by means of local-density-approximation to density functional theory plus a local exchange term, the…
Multipole decomposition of LDA+ energy and its application to actinides compounds
Fredrik Bultmark, Francesco Cricchio, Oscar Grånäs +1
A general reformulation of the exchange energy of -shell is applied in the analysis of the magnetic structure of various actinides compounds in the framework of LDA+U method. T…
Magnetic properties of LaOFFeAs
S. Sharma, J. K. Dewhurst, S. Shallcross +6
Using state-of-the-art first-principles calculations we have elucidated the complex magnetic and structural dependence of LaOFeAs upon doping. Our key findings are that (i) doping…
Exchange energy dominated by large orbital spin-currents in -Pu
Francesco Cricchio, Fredrik Bultmark, Lars Nordström
The electronic structure of the anomalous -phase of Pu is analyzed by a general and exact reformulation of the exchange energy of the -shell. It is found that the dominating…