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Université de Fribourg

Infrared study of the multiband low-energy excitations of the topological antiferromagnet MnBi2Te4

Xu, Bing ; Zhang, Y. ; Alizade, E. H. ; Jahangirli, Z. A. ; Lyzwa, Fryderyk ; Sheveleva, Evgeniia ; Marsik, Premysl ; Li, Y. K. ; Yao, Y. G. ; Wang, Z. W. ; Shen, B. ; Dai, Y. M. ; Kataev, V. ; Otrokov, M. M. ; Chulkov, E. V. ; Mamedov, N. T. ; Bernhard, Christian

In: Physical Review B, 2021, vol. 103, no. 12, p. L121103

With infrared spectroscopy, we studied the bulk electronic properties of the topological antiferromagnet MnBi2Te4 with TN ≃ 25 K. With the support of band-structure calculations, we assign the intra- and interband excitations and determine the band gap of Eg ≈ 0.17 eV. We also obtain evidence for two types of conduction bands with light and very heavy carriers. The multiband free-carrier...

  • Wang,5,6,* B....
  • Wang, Z....
  • Wang, Y....
  • HAGDORN H., WANG X....
  • -F. & WANG C....
  • WANG YanGeng, WANG LiTing & WANG ShangYan (2000).- Discussion on Guanling fauna and their significance in Guizhou, China.Guizhou Geology, Guiyang, vol. 17, n° 3, p. 145–151 [in Chinese]....
  • Song BH, Wang XQ, Wang XR, Ding KY, Hong DY (2003) Cytoplasmic composition in Pinus densata and population establishment of the diploid hybrid pine....
  • Wang XR, Szmidt AE, Lewandowski A, Wang ZR (1990) Evolutionary analysis of Pinus densata, a putative hybrid .1....
  • Wang B, Mao JF, Gao J, Zhao W, Wang XR (2011) Colonization of the Tibetan plateau by the homoploid hybrid pine Pinus densata....
  • Swisher, C.C., Wang, I.I.I., Wang, Y.Q., Xu, X.L., Wang, X.Y., 1999....
  • Wang, S.S., Wang, Y.Q., Hu, H.G., Li, H.M., 2001....
  • In: Chang, M.M., Chen, P.J., Wang, Y.Q., Wang, Y....
Bibliothèque cantonale jurassienne

Reading behavior from the rocks : [critic of book]

Jensen, Sören

In: Science. American Association for the Advancement of Science, 2008, vol. 322, p. 1051

  • Aware of the distinction, Wang narrates SCIENCE POLICY should go next need to look elsewhere....
  • Wang’s book they will instead find a fully Wang also emphasizes the balance that developed and complex historical analysis....
  • As Wang suggests, PSAC’s ond used their advice to form science policy on versus policy for science....
Bibliothèque cantonale jurassienne

A juvenile lizard specimen with well-preserved skin impressions from the Upper Jurassic/Lower Cretaceous of Daohugou, Inner Mongolia, China

Evans, Susan E. ; Wang, Y.

In: Naturwissenschaften : Organ der Max-Planck-Gesellschaft zur Foerderung der Wissenschaften : Organ der Gesellschaft deutscher Naturforscher und Aerzte, 2007, vol. 94, p. 431

  • Can J Earth Sci 32:1426–1431 Swisher CC III, Wang YQ, Wang XL, Xu X, Wang Y (1999) Cretaceous age for the feathered dinosaurs of Liaoning, China....
  • Bull Am Mus Nat Hist 48:289–481 Chang MM, Chen PJ, Wang YQ, Wang Y (eds) (2003) The Jehol Biota: emergence of feathered dinosaurs and beaked birds....
  • Chin Sci Bull 47:226–230 Wang XL, Zhou ZH, He HY, Jin F, Wang YQ, Zhang JY, Wang Y, Xu X, Zhang FC (2005) Stratigraphy and age of the Daohugou bed in Ningcheng, Inner Mongolia....
  • Wang. 2001....
  • Wang, X-L....
  • Wang, X....
  • C., Wang, Y., Wang, X., Xu, X., and Wang, Y. 1999....
  • Wang, X., Zhou, Z., He, H., Jin, F., Wang, Y., Zhang, J., Wang, Y., Xu, X., and Zhang, F. 2005....
  • Wang, Y. 2000....
Université de Fribourg

Structural effects on synchronizability of scale-free networks

Liu, Jian-Guo ; Zhou, Tao ; Guo, Qiang ; Wang, Bing-Hong

In: International Journal of Modern Physics C, 2008, vol. 19, no. 9, p. 1359 - 1366

In this paper, we numerically investigate the structural characteristics that affect the synchronizability of coupled identical oscillators on scale-free networks. By using the edge-exchange method, we can change the network structure with degree sequence fixed. An optimal algorithm, namely Tabu Search, is applied, respectively, to enhance and weaken the synchronizability. The numerical results...

  • Wang, G....
  • Wang, Q....
  • Wang, T....
Université de Fribourg

Efficient routing on scale-free networks

Zhou, Tao

In: International Journal of Modern Physics B, 2007, vol. 21, no. 23-24, p. 4071-4075

The nodes with the largest degree are very susceptible to traffic congestion, thus an effective way to improve traffic and control congestion can be redistributing traffic load in hub nodes to others. We proposed an efficient routing strategy, which can remarkably enhance the network throughput. In addition, by using detrended fluctuation analysis, we found that the traffic rate fluctuation near...

  • Wang, Phys....
  • Wang, Chin....
  • Wang, Q....