Frustrated minority spins in GeNi 2 O 4

Electronic structure of KTi ( SO 4 ) 2 · H 2 O : An S = 12 frustrated chain antiferromagnet

Electronic structure of KTi(SO4)2·H2O: An S= 2 frustrated chain antiferromagnet Deepa Kasinathan,1,* K. Koepernik,2 O. Janson,1 G. J. Nilsen,3 J. O. Piatek,3 H. M. Rønnow,3 and H. Rosner1,† 1Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany 2IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany 3Laboratory for Quantum Magnetism, ICMP, EPFL, CH-1...

Spin-orbit fluctuations in frustrated heavy-fermion metal LiV(2)O(4).

Spin fluctuations were studied over a wide momentum (ℏQ) and energy (E) space in the frustrated d-electron heavy-fermion metal LiV_{2}O_{4} by time-of-flight inelastic neutron scattering. We observed the overall Q-E evolutions near the characteristic Q=0.6  Å^{-1}  peak and found another weak broad magnetic peak around 2.4  Å^{-1}. The data are described by a simple response function, a partial...

Evolution of magnetic states in frustrated diamond lattice antiferromagnetic Co(Al1- xCox)(2)O-4 spinels

Thermal Excitations of Frustrated Xy Spins in Two Dimensions

We present a new variational approach to the study of phase transitions in frustrated 2D XY models. In the spirit of Villain’s approach for the ferromagnetic case we divide thermal excitations into a low temperature long wavelength part (LW) and a high temperature short wavelength part (SW). In the present work we mainly deal with LW excitations and we explicitly consider the cases of the fully...

Entropy-vanishing transition and glassy dynamics in frustrated spins.

In an effort to understand the glass transition, the dynamics of a nonrandomly frustrated spin model has been analyzed. The phenomenology of the spin model is similar to that of a supercooled liquid undergoing the glass transition. The slow dynamics can be associated with the presence of extended stringlike structures which demarcate regions of fast spin flips. An entropy-vanishing transition, ...