350 citations · 488 across the 6 of their papers we have counts for
6 papers
Connected Network Model for the Mechanical Loss of Amorphous Materials
Steven Blaber, Daniel Bruns, Jörg Rottler
Dissipation in amorphous solids at low frequencies is commonly attributed to activated transitions of isolated two-level systems (TLS) that come in resonance with elastic or electr…
Nanotube heat conductors under tensile strain: Reducing the three-phonon scattering strength of acoustic phonons
Daniel Bruns, Alireza Nojeh, A. Srikantha Phani +1
Acoustic phonons play a special role in lattice heat transport, and confining these low-energy modes in low-dimensional materials may enable nontrivial transport phenomena. By appl…
Heat transport in carbon nanotubes: Length dependence of phononic conductivity from the Boltzmann transport equation and molecular dynamics
Daniel Bruns, Alireza Nojeh, A. Srikantha Phani +1
In this article, we address lattice heat transport in single-walled carbon nanotubes (CNTs) by a quantum mechanical calculation of three-phonon scattering rates in the framework of…
Tuning morphology and thermal transport of asymmetric smart polymer blends by macromolecular engineering
Daniel Bruns, Tiago Espinosa de Oliveira, Joerg Rottler +1
A grand challenge in designing polymeric materials is to tune their properties by macromolecular engineering. In this context, one of the drawbacks that often limits broader applic…
Evidence for Jahn-Teller distortions at the antiferromagnetic transition in LaTiO
J. Hemberger, H. -A. Krug von Nidda, V. Fritsch +8
LaTiO is known as Mott-insulator which orders antiferromagnetically at K. We report on results of thermal expansion and temperature dependent x-ray diffraction…
Evidence for a Low-Spin to Intermediate-Spin State Transition in LaCoO3
C. Zobel, M. Kriener, D. Bruns +5
We present measurements of the magnetic susceptibility and of the thermal expansion of a LaCoO single crystal. Both quantities show a strongly anomalous temperature dependence.…