Chiral Fluctuations in MnSi above the Curie Temperature
作者： B. Roessli , P. Böni , W. E. Fischer , Y. Endoh
DOI: 10.1103/PHYSREVLETT.88.237204
关键词:
摘要: Polarized neutrons are used to determine the antisymmetric part of magnetic susceptibility in noncentrosymmetric MnSi. The paramagnetic fluctuations found be incommensurate with chemical lattice and have a chiral character. We argue that interactions must taken into account properly describe critical dynamics MnSi above TC. possibility directly measuring polarization dependent dynamical large class compounds by polarized inelastic neutron scattering is outlined as it can yield evidence for such spin-orbit coupling metals well insulators.
harvard.edu
researchgate.net 
sci-hub.se 参考文章(28)
B Lebech, J Bernhard, T Freltoft, Magnetic structures of cubic FeGe studied by small-angle neutron scattering Journal of Physics: Condensed Matter. ,vol. 1, pp. 6105- 6122 ,(1989) , 10.1088/0953-8984/1/35/010
V. P. Plakhty, W. Schweika, Th. Brückel, J. Kulda, S. V. Gavrilov, L.-P. Regnault, D. Visser, Chiral criticality in helimagnet Ho studied by polarized neutron scattering Physical Review B. ,vol. 64, pp. 100402- ,(2001) , 10.1103/PHYSREVB.64.100402
Hikaru Kawamura, Renormalization-group analysis of chiral transitions Physical Review B. ,vol. 38, pp. 4916- 4928 ,(1988) , 10.1103/PHYSREVB.38.4916
T. E. Mason, B. D. Gaulin, M. F. Collins, Neutron scattering measurements of critical exponents in CsMnBr/sub 3/: A Z/sub 2/greater than or equal to/sub 1/ antiferromagnet Physical Review B. ,vol. 39, pp. 586- 590 ,(1989) , 10.1103/PHYSREVB.39.586
P. E. Sulewski, P. A. Fleury, K. B. Lyons, S-W. Cheong, Observation of chiral spin fluctuations in insulating planar cuprates Physical Review Letters. ,vol. 67, pp. 3864- 3867 ,(1991) , 10.1103/PHYSREVLETT.67.3864
S. V. Maleyev, Investigation of spin chirality by polarized neutrons. Physical Review Letters. ,vol. 75, pp. 4682- 4685 ,(1995) , 10.1103/PHYSREVLETT.75.4682
V. P Plakhty, S. V Maleyev, J Kulda, J Wosnitza, D Visser, E Moskvin, Inelastic polarised neutron scattering in the triangular-lattice antiferromagnet CsMnBr3: An experimental proof of the chiral universality EPL. ,vol. 48, pp. 215- 220 ,(1999) , 10.1209/EPL/I1999-00468-4
Toru Moriya, Spin Fluctuations in Itinerant Electron Magnetism Springer Series in Solid-State Sciences. ,(1985) , 10.1007/978-3-642-82499-9
C. Pfleiderer, S. R. Julian, G. G. Lonzarich, Non-Fermi-liquid nature of the normal state of itinerant-electron ferromagnets Nature. ,vol. 414, pp. 427- 430 ,(2001) , 10.1038/35106527
Y. Ishikawa, G. Shirane, J. A. Tarvin, M. Kohgi, Magnetic excitations in the weak itinerant ferromagnet MnSi Physical Review B. ,vol. 16, pp. 4956- 4970 ,(1977) , 10.1103/PHYSREVB.16.4956