4 citations
3 papers
cond-mat.dis-nn2008★ 1 cited
Anisotropic glass-like properties in tetragonal disordered crystals
Dragoş-Victor Anghel, Dmitry Churochkin
The low temperature acoustic and thermal properties of amorphous, glassy materials are remarkably similar. All these properties are described theoretically with reasonable quantita…
cond-mat.dis-nn2008★ 4 cited
Anisotropic interaction of two-level systems with acoustic waves in disordered crystals
Dragoş-Victor Anghel, Dmitry Churochkin
We apply the model introduced in Phys. Rev. B 75, 064202 (2007), cond-mat/0610469, to calculate the anisotropy effect in the interaction of two level systems with phonons in disord…
cond-mat.dis-nn2008★ 2 cited
Scattering of phonons on two-level systems in disordered crystals
Dragoş-Victor Anghel, Dmitry Churochkin
We calculate the scattering rates of phonons on two-level systems in disordered trigonal and hexagonal crystals. We apply a model in which the two-level system, characterized by a…