Published July 2008
| Version v1
Journal article
Magnetic moment oscillation in ammonium perchlorate in a DC SQUID-based magnetic resonance experiment
Creators
- 1. Centro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud, 150, Rio de Janeiro 22290-180 (Brazil)
Description
In this work we describe experimental results in which a DC SQUID (superconducting quantum interference device) is used as free induction decay detector. Measurements of a solid ammonium perchlorate (NH4ClO4) sample were performed, in zero field, at 4.2 K. Unexpected magnetic moment oscillations were detected at 1.5 kHz. The computation of the magnetic fields suggests that the proton nuclear magnetic resonance may explain the measured resonance, considering reorientation of the ammonium group by quantum tunneling of protons and a magnetic proton dipole-dipole intermolecular interaction model
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2008.02.046Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2008.02.046;
- PII
- S0304-8853(08)00137-6;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 320
- Journal Issue
- 14
- Journal Page Range
- p. e196-e199
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- 8. Latin American workshop on magnetism, magnetic materials and their applications
- Dates
- 12-16 Aug 2007
- Place
- Rio de Janeiro (Brazil)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40009139
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AMMONIUM PERCHLORATES; CALCULATION METHODS; DIPOLES; INTERACTIONS; KHZ RANGE 01-100; MAGNETIC FIELDS; MAGNETIC MOMENTS; NUCLEAR MAGNETIC RESONANCE; OSCILLATIONS; PROTONS; SQUID DEVICES; TEMPERATURE RANGE 0000-0013 K; TUNNEL EFFECT
- Descriptors DEC
- AMMONIUM COMPOUNDS; BARYONS; CHLORINE COMPOUNDS; ELECTRONIC EQUIPMENT; ELEMENTARY PARTICLES; EQUIPMENT; FERMIONS; FLUXMETERS; FREQUENCY RANGE; HADRONS; HALOGEN COMPOUNDS; KHZ RANGE; MAGNETIC RESONANCE; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; MULTIPOLES; NUCLEONS; OXYGEN COMPOUNDS; PERCHLORATES; RESONANCE; SUPERCONDUCTING DEVICES; TEMPERATURE RANGE
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.