Reference : Direct experimental evidence for atomic tunneling of europium in crystalline Eu8Ga16Ge30
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/136282
Direct experimental evidence for atomic tunneling of europium in crystalline Eu8Ga16Ge30
English
Hermann, Raphaël mailto [Université de Liège - ULiège > Département de physique > Département de physique >]
Keppens, Veerle [> > > >]
Bonville, Pierre [> > > >]
Nolas, George S [> > > >]
Grandjean, Fernande mailto [Université de Liège - ULiège > Département de physique > Département de physique >]
Long, Gary J [> > > >]
Christen, Hans M [> > > >]
Chakoumakos, Bryan C [> > > >]
Sales, Brian C [> > > >]
Mandrus, David [> > > >]
2006
Physical Review Letters
American Physical Society
97
1
Yes (verified by ORBi)
International
0031-9007
1079-7114
Ridge
NY
[en] Mossbauer-effect and microwave absorption experimental evidence unambiguously demonstrates the presence of slow, similar to 450 MHz, tunneling of magnetic europium between four equivalent sites in Eu8Ga16Ge30, a stoichiometric clathrate. Remarkably, six of the eight europium atoms, or 11% of the constituents in this solid, tunnel between these four sites separated by 0.55 angstrom. The off centering of the atoms or ions in crystalline clathrates appears to be a promising route for producing Rabi oscillators in solid-state materials.
http://hdl.handle.net/2268/136282
10.1103/PhysRevLett.97.017401

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