New relaxation processes in diluted Ho2Ti2O7
Journal Article
·
· Physica B: Condensed Matter
OSTI ID:968620
- Indiana University
- ORNL
We have studied the spin relaxation in diluted spin ice Ho{sub 2-x}R{sub x}Ti{sub 2}O{sub 7} (R = La or Y) by means of neutron scattering. Remarkably, doping with nonmagnetic ions does not relieve the geometrical frustration and the dynamics of the freezing is unaltered whilst the cubic unit cell is maintained. When the nonmagnetic substitution starts to distort the lattice, a new relaxation process is revealed. We present new data from several diluted spin ice samples where Arrhenius behavior observed in the parent compound, Ho{sub 2}Ti{sub 2}O{sub 7} is superseded by other processes including a quantum tunnelling process.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 968620
- Journal Information:
- Physica B: Condensed Matter, Vol. 405, Issue 2
- Country of Publication:
- United States
- Language:
- English
Similar Records
The dynamics of diluted Ho Spin Ice Ho2−xYxTi2O7 studied by neutron spin echo spectroscopy
The dynamics of diluted Ho spin ice Ho2-xYxTi2O7 studied byneutron spin echo spectroscopy
Frustrated spin correlations in diluted spin ice Ho(2-x)La(x)Ti2O7
Journal Article
·
Sun Jan 01 00:00:00 EST 2006
· Physical Review B
·
OSTI ID:968620
The dynamics of diluted Ho spin ice Ho2-xYxTi2O7 studied byneutron spin echo spectroscopy
Journal Article
·
Mon Feb 27 00:00:00 EST 2006
· Physical Review B
·
OSTI ID:968620
+10 more
Frustrated spin correlations in diluted spin ice Ho(2-x)La(x)Ti2O7
Journal Article
·
Tue Jan 01 00:00:00 EST 2008
· Journal of Physics: Condensed Matter
·
OSTI ID:968620