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Université de Fribourg

Lattice-mediated magnetic order melting in ${\mathrm{TbMnO}}_{3}$

Baldini, Edoardo ; Kubacka, Teresa ; Mallett, Benjamin P. P. ; Ma, Chao ; Koohpayeh, Seyed M. ; Zhu, Yimei ; Bernhard, Christian ; Johnson, Steven L. ; Carbone, Fabrizio

In: Physical Review B, 2018, vol. 97, no. 12, p. 125149

Recent ultrafast magnetic-sensitive measurements [Johnson et al., Phys. Rev. B 92, 184429 (2015); Bothschafter et al., Phys. Rev. B 96, 184414 (2017)] have revealed a delayed melting of the long-range cycloid spin order in TbMnO3 following photoexcitation across the fundamental Mott-Hubbard gap. The microscopic mechanism behind this slow transfer of energy from the photoexcited carriers to...

Université de Fribourg

Local real-space view of the achiral $1t\text{\ensuremath{-}}{\mathrm{tise}}_{2}$ $2\ifmmode\times\else\texttimes\fi{}2\ifmmode\times\else\texttimes\fi{}2$ charge density wave

Hildebrand, Baptiste ; Jaouen, Thomas ; Mottas, Marie-Laure ; Monney, Gaël ; Barreteau, C. ; Giannini, E. ; Bowler, D. R. ; Aebi, Philipp

In: Physical Review Letters, 2018, vol. 120, no. 13, p. 136404

The transition metal dichalcogenide 1T−TiSe2-two-dimensional layered material undergoing a commensurate 2×2×2 charge density wave (CDW) transition with a weak periodic lattice distortion (PLD) below ≈200 K. Scanning tunneling microscopy (STM) combined with intentionally introduced interstitial Ti atoms allows us to go beyond the usual spatial resolution of STM and to intimately probe...

Consortium of Swiss Academic Libraries

Optimal investments in volatility

Hafner, Reinhold ; Wallmeier, Martin

In: Financial Markets and Portfolio Management, 2008, vol. 22, no. 2, p. 147-167

Consortium of Swiss Academic Libraries

Self-organized model of cascade spreading

Gualdi, S. ; Medo, M. ; Zhang, Y.-C

In: The European Physical Journal B, 2011, vol. 79, no. 1, p. 91-98

Consortium of Swiss Academic Libraries

Characterizing vibrational motion beyond internal coordinates

Hug, Werner ; Fedorovsky, Maxim

In: Theoretical Chemistry Accounts, 2008, vol. 119, no. 1-3, p. 113-131