کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1803081 1024609 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic moment oscillation in ammonium perchlorate in a DC SQUID-based magnetic resonance experiment
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Magnetic moment oscillation in ammonium perchlorate in a DC SQUID-based magnetic resonance experiment
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 320, Issue 14, July 2008, Pages e196-e199
نویسندگان
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