4 papers
Dilute magnetism and vibrational entropy in Fe2Al5
Ji Chi, Xiang Zheng, Sergio Y. Rodriguez +5
Fe2Al5 contains a Fe-Al matrix through which are threaded disordered one-dimensional chains of overlapping Al sites. We report magnetic, nuclear-magnetic-resonance (NMR), and speci…
NMR experiments and electronic structure calculations in type-I BaAlGe clathrates
Weiping Gou, Sergio Y. Rodriguez, Yang Li +1
We describe 27Al NMR experiments on Ba8AlxGe46-x type-I clathrates coupled with ab initio computational studies. For x=16, calculated spectra determined by the ab initio results ga…
NMR relaxation and rattling phonons in type-I Ba8Ga16Sn30 clathrate
Xiang Zheng, Sergio Y. Rodriguez, Joseph H. Ross
Atomic motion of guest atoms inside semiconducting clathrate cages is considered as an important source for the glasslike thermal behavior.69Ga and 71Ga Nuclear Magnetic Resonance…
Transport and thermodynamic properties under anharmonic motion in type-I Ba8Ga16Sn30 clathrate
Xiang Zheng, Sergio Y. Rodriguez, Laziz Saribaev +1
Anharmonic guest atom oscillation has direct connection to the thermal transport and thermo- electric behavior of type-I Ba8Ga16Sn30 clathrates. This behavior can be observed throu…