Low energy spin dynamics in the spin ice, Ho2Sn2O7

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Journal of Physics: Condensed Matter

DOI:https://doi.org/10.1088/0953-8984/24/7/076005· OSTI ID:1034692

Ehlers, Georg ^[1]; Huq, Ashfia ^[1]; Diallo, Souleymane Omar ^[2]; Adriano, Cris ^[1]; Rule, K ^[3]; Cornelius, A. L. ^[4]; Fouquet, Peter ^[5]; Pagliuso, P G ^[6]; Gardner, Jason ^[7]

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1. ORNL
2. Oak Ridge National Laboratory (ORNL)
3. Helmholtz-Zentrum Berlin
4. University of Nevada, Las Vegas
5. Institut Laue-Langevin (ILL)
6. Instituto de Fisica Gleb Wataghin, Unicamp, Brazil
7. Indiana University

The magnetic properties of Ho{sub 2}Sn{sub 2}O{sub 7} have been investigated and compared to other spin ice compounds. Although the lattice has expanded by 3% relative to the better studied Ho{sub 2}Ti{sub 2}O{sub 7} spin ice, no significant changes were observed in the high temperature properties, T {approx}> 20 K. As the temperature is lowered and correlations develop, Ho{sub 2}Sn{sub 2}O{sub 7} enters its quantum phase at a slightly higher temperature than Ho{sub 2}Ti{sub 2}O{sub 7} and is more antiferromagnetic in character. Below 80 K a weak inelastic mode associated with the holmium nuclear spin system has been measured. The hyperfine field at the holmium nucleus was found to be {approx}700 T.

• 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: 1034692
• Journal Information: Journal of Physics: Condensed Matter, Vol. 24, Issue 7; ISSN 0953-8984
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
HOLMIUM
HOLMIUM OXIDES
HYPERFINE STRUCTURE
MAGNETIC PROPERTIES
SPIN
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TIN OXIDES