Resistively detected NMR of the nu=1 quantum Hall state: A tilted magnetic field study
- Department of Chemistry, University of Florida, Gainesville, Florida 32611 (United States)
- Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo 05315-970, SP (Brazil)
- National High Magnetic Field Laboratory, Tallahassee, Florida 32306 (United States)
- Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
Previous resistively detected NMR (RDNMR) studies on the nuapprox =1 quantum Hall state have reported a 'dispersionlike' line shape and extremely short nuclear-spin-lattice relaxation times, observations which have been attributed to the formation of a skyrme lattice. Here we examine the evolution of the RDNMR line shape and nuclear-spin relaxation for Zeeman:Coulomb energy ratios ranging from 0.012 to 0.036. According to theory, suppression of the skyrme crystal, along with the associated Goldstone mode nuclear-spin-relaxation mechanism, is expected at the upper end of this range. However, we find that the anomalous line shape persists at high Zeeman energy, and only a modest decrease in the RDNMR-detected nuclear-spin-relaxation rate is observed.
- OSTI ID:
- 21366683
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 81, Issue 7; Other Information: DOI: 10.1103/PhysRevB.81.073301; (c) 2010 The American Physical Society; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COULOMB ENERGY
CRYSTALS
EVOLUTION
MAGNETIC FIELDS
NUCLEAR MAGNETIC RESONANCE
SKYRME POTENTIAL
SPIN
SPIN-LATTICE RELAXATION
ZEEMAN EFFECT
ANGULAR MOMENTUM
ENERGY
MAGNETIC RESONANCE
NUCLEON-NUCLEON POTENTIAL
PARTICLE PROPERTIES
POTENTIALS
RELAXATION
RESONANCE