Phonon properties in narrow gap FeSi and FeSb2 single crystals
作者： A.-M. Racu , D. Menzel , J. Schoenes , M. Marutzky , S. Johnsen
DOI: 10.1063/1.2885067
关键词:
摘要: We review the phonon analysis of FeSi and present a new study Raman infrared (IR) active phonons related compound FeSb2. The measurements are supplemented by factor group analysis, enabling full mode assignment. While in FeSi, all nine modes predicted theory visible our spectra, FeSb2, three six have been observed. unusual temperature dependence linewidth has interpreted terms electron-phonon interactions. In Fano-like IR absorption is reported at 300K, indicating coupling. asymmetry vanishes damping constant decreases drastically cooling, correspondence with depletion charge carrier concentration.
scitation.org
core.ac.uk
mpg.de
harvard.edu
aip.org
sci-hub.se 参考文章(8)
J. F. DiTusa, N. Manyala, Y. Sidis, Y. Sidis, D.P. Young, G. Aeppli, Z. Fisk, Magnetoresistance from quantum interference effects in ferromagnets Nature. ,vol. 404, pp. 581- 584 ,(2000) , 10.1038/35007030
A. Bentien, S. Johnsen, G. K. H. Madsen, B. B. Iversen, F. Steglich, Colossal Seebeck coefficient in strongly correlated semiconductor FeSb2 EPL. ,vol. 80, pp. 17008- ,(2007) , 10.1209/0295-5075/80/17008
A.-M. Racu, D. Menzel, J. Schoenes, K. Doll, Crystallographic disorder and electron-phonon coupling inFe1−xCoxSisingle crystals: Raman spectroscopy study Physical Review B. ,vol. 76, pp. 115103- ,(2007) , 10.1103/PHYSREVB.76.115103
H.D. Lutz, B. M�ller, Lattice vibration spectra. LXVIII. Single-crystal Raman spectra of marcasite-type iron chalcogenides and pnictides, FeX 2 (X=S, Se, Te; P, As, Sb) Physics and Chemistry of Minerals. ,vol. 18, pp. 265- 268 ,(1991) , 10.1007/BF00202579
C. Petrovic, J. W. Kim, S. L. Bud’ko, A. I. Goldman, P. C. Canfield, W. Choe, G. J. Miller, Anisotropy and large magnetoresistance in the narrow-gap semiconductor FeSb2 Physical Review B. ,vol. 67, pp. 1- 11 ,(2003) , 10.1103/PHYSREVB.67.155205
J. D. Axe, G. Shirane, Influence of the Superconducting Energy Gap on Phonon Linewidths inNb3Sn Physical Review Letters. ,vol. 30, pp. 214- 216 ,(1973) , 10.1103/PHYSREVLETT.30.214
J.H. Wernick, G.K. Wertheim, R.C. Sherwood, Magnetic behavior of the monosilicides of the 3d-transition elements Materials Research Bulletin. ,vol. 7, pp. 1431- 1441 ,(1972) , 10.1016/0025-5408(72)90180-8
N. Manyala, Y. Sidis, J. F. DiTusa, G. Aeppli, D.P. Young, Z. Fisk, Magnetoresistance From Quantum Interference Effects in Ferromagnets arXiv: Strongly Correlated Electrons. ,(2000) , 10.1038/35007030