Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Binz, B."'
Autor:
Mühlbauer, S., Binz, B., Jonietz, F., Pfleiderer, C., Rosch, A., Neubauer, A., Georgii, R., Böni, P.
Skyrmions represent topologically stable field configurations with particle-like properties. We used neutron scattering to observe the spontaneous formation of a two-dimensional lattice of skyrmion lines, a type of magnetic vortices, in the chiral it
Externí odkaz:
http://arxiv.org/abs/0902.1968
Publikováno v:
Phys. Rev. Lett. 102, 186602 (2009)
Recent small angle neutron scattering suggests, that the spin structure in the A-phase of MnSi is a so-called triple-$Q$ state, i.e., a superposition of three helices under 120 degrees. Model calculations suggest that this structure in fact is a latt
Externí odkaz:
http://arxiv.org/abs/0902.1933
Autor:
Binz, B., Vishwanath, A.
Publikováno v:
Physica B 403, 1336 (2008)
Under pressure, the itinerant helimagnet MnSi displays unusual magnetic properties. We have previously discussed a BCC helical spin crystal as a promising starting point for describing the high pressure phenomenology. This state has topologically non
Externí odkaz:
http://arxiv.org/abs/0706.1841
Autor:
Binz, B., Vishwanath, A.
Publikováno v:
Phys. Rev. B 74, 214408 (2006).
Motivated by recent experiments on the itinerant helimagnet MnSi, we study general properties of helical spin crystals - magnetic structures obtained by superposing distinct spin spirals. An effective Landau description of helical spin crystals is in
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608128
Autor:
Binz, B., Vishwanath, A.
Publikováno v:
J. Magn. Magn. Mater. 310, 1062 (2007)
In [B. Binz, A. Vishwanath and V. Aji, Phys. Rev. Lett. 96, 207202 (2006)], a magnetic structure that breaks time reversal symmetry in the absence of net magnetization was proposed as an explanation for the high pressure "partially ordered" state of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608120
Publikováno v:
Phys. Rev. Lett. 96, 207202 (2006)
MnSi is an itinerant magnet which at low temperatures develops a helical spin density wave. Under pressure it undergoes a transition into an unusual partially ordered state whose nature is debated. Here we propose that the helical spin crystal (the m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602529
Publikováno v:
Phys. Rev. Lett. 96, 196406 (2006)
We examine the effects of long-range dipolar forces on metamagnetic transitions and generalize the theory of Condon domains to the case of an itinerant electron system undergoing a first-order metamagnetic transition. We demonstrate that within a fin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0509306
Autor:
Binz, B., Sigrist, M.
Publikováno v:
Europhys. Lett. 65, 816 (2004)
The problem of quantum criticality in the context of itinerant ferro- or metamagnetism has received considerable attention [S. A. Grigera et. al., Science 294, 329 (2001); C. Pfleiderer et. al., Nature, 414, 427 (2001)]. It has been proposed that a n
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401294
Publikováno v:
Ann. Phys. (Leipzig) 12 (2003) [11-12] 704-736
We present a general method to study weak-coupling instabilities of a large class of interacting electron models in a controlled and unbiased way. Quite generally, the electron gas is unstable towards a superconducting state even in the absence of ph
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309645
Autor:
Binz, B.
In this thesis, I study a two-dimensional extended Hubbard model in the weak coupling limit. Quite generally, the electron gas is unstable towards a superconducting state even in the absence of phonons. However in the special case of a half-filled ba
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207067