77 citations · 198 across the 9 of their papers we have counts for
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Spin-orbital entanglement near quantum phase transitions
Andrzej M. Oles, Peter Horsch, Giniyat Khaliullin
Spin-orbital entanglement in the ground state of a one-dimensional SU(2)SU(2) spin-orbital model is analyzed using exact diagonalization of finite chains. For spin…
One-dimensional orbital fluctuations and the exotic magnetic properties of YVO
Andrzej M. Oles, Peter Horsch, Giniyat Khaliullin
Starting from the Mott insulator picture for cubic vanadates, we derive and investigate the model of superexchange interactions between V ions, with nearly degenerate $t_{2g…
Cu NQR Wipeout Effect versus Charge Pseudogap in Zn/Ni Doped NdBaCuO
H. -J. Grafe, F. Hammerath, A. Vyalikh +5
We report Cu NQR measurements on slightly underdoped NdBaCuO single crystals heavily doped by Ni and Zn impurities. Owing to the impurity doping super…
Doping induced magnetic clusters and Co spin state transition in Na_xCoO_2 with 0.78<x<.97
C. Bernhard, Ch. Niedermayer, A. Drew +7
By muon spin rotation we investigated the magnetic properties of a series of highly Na doped NaxCoO2 single crystals with 0.78(1)<x<0.97(1). Our data provide evidence for an intrin…