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Université de Fribourg

Entropy and specific heat of the infinite-dimensional three-orbital Hubbard model

Yue, Changming ; Werner, Philipp

In: Physical Review B, 2020, vol. 102, no. 8, p. 085102

The Hund's coupling in multiorbital Hubbard systems induces spin freezing and associated Hund metal behavior. Using dynamical mean-field theory, we explore the effect of local moment formation, spin, and charge excitations on the entropy and specific heat of the three-orbital model. For fillings 2≲n<3 and low temperature, we demonstrate a substantial enhancement of the entropy in the...

Consortium of Swiss Academic Libraries

Nonthermal particles and photons in starburst regions and superbubbles

Bykov, Andrei

In: The Astronomy and Astrophysics Review, 2014, vol. 22, no. 1, p. 1-54

Consortium of Swiss Academic Libraries

X-ray spectroscopy of stars

Güdel, Manuel ; Nazé, Yaël

In: The Astronomy and Astrophysics Review, 2009, vol. 17, no. 3, p. 309-408

Consortium of Swiss Academic Libraries

The expansion field: the value of H 0

Tammann, G. ; Sandage, A. ; Reindl, B.

In: The Astronomy and Astrophysics Review, 2008, vol. 15, no. 4, p. 289-331

Consortium of Swiss Academic Libraries

Gravitational lensing and rotation curve

Bräunlich, Gerhard ; Scharf, Günter

In: General Relativity and Gravitation, 2011, vol. 43, no. 1, p. 143-154

Consortium of Swiss Academic Libraries

Milky Way Gas Dynamics

Englmaier, Peter ; Gerhard, Ortwin

In: Celestial Mechanics and Dynamical Astronomy, 2006, vol. 94, no. 4, p. 369-379