30 citations · 125 across the 11 of their papers we have counts for
5 papers · 1 filter
Tricritical behavior in itinerant quantum ferromagnets
D. Belitz, T. R. Kirkpatrick, Joerg Rollbuehler
It is shown that the peculiar features observed in the low-temperature phase diagrams of ZrZn_2, UGe_2, and MnSi can be understood in terms of a simple mean-field theory. The natur…
Breakdown of the perturbative renormalization group at certain quantum critical points
D. Belitz, T. R. Kirkpatrick, J. Rollbuehler
It is shown that the presence of multiple time scales at a quantum critical point can lead to a breakdown of the loop expansion for critical exponents, since coefficients in the ex…
Softer than normal, but not as soft as one might think: Spontaneous flux lattices in ferromagnetic spin-triplet superconductors
Sumanta Tewari, D. Belitz, T. R. Kirkpatrick +1
A theory is developed for the spontaneous vortex lattice that is expected to occur in the ferromagnetic superconductors ZrZn_2, UGe_2, and URhGe, where the superconductivity is lik…
Influence of Generic Scale Invariance on Classical and Quantum Phase Transitions
D. Belitz, T. R. Kirkpatrick, Thomas Vojta
This review discusses a paradigm that has become of increasing importance in the theory of quantum phase transitions; namely, the coupling of the order-parameter fluctuations to ot…
Electron localization in an external electric field
O. Bleibaum, D. Belitz
The impact of a weak electric field on the weak-localization corrections is studied within the framework of a nonlinear sigma-model. Two scaling regimes are obtained. In one, the s…