Determination of Muonium Hyperfine Structure Interval Through Measurements at Low Magnetic Fields

1969 ◽  
Vol 22 (5) ◽  
pp. 163-167 ◽  
Author(s):  
P. A. Thompson ◽  
J. J. Amato ◽  
P. Crane ◽  
V. W. Hughes ◽  
R. M. Mobley ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Hyperfine Structure ◽  
Muonium Hyperfine

Muonium. IV. Precision Measurement of the Muonium Hyperfine-Structure Interval at Weak and Very Weak Magnetic Fields

1973 ◽  
Vol 8 (1) ◽  
pp. 86-112 ◽  
Author(s):  
P. A. Thompson ◽  
P. Crane ◽  
T. Crane ◽  
J. J. Amato ◽  
V. W. Hughes ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Hyperfine Structure ◽  
Precision Measurement ◽  
Weak Magnetic Fields ◽  
Muonium Hyperfine

AMBIPOLAR DIFFUSION AND TURBULENT MAGNETIC FIELDS IN MOLECULAR CLOUDS

2011 ◽  
Vol 26 (04) ◽  
pp. 235-249 ◽  
Author(s):  
MARTIN HOUDE ◽  
TALAYEH HEZAREH ◽  
HUA-BAI LI ◽  
THOMAS G. PHILLIPS
Keyword(s):  
Magnetic Fields ◽  
Molecular Clouds ◽  
Ambipolar Diffusion ◽  
Star Forming ◽  
Star Forming Regions ◽  
Spin Interactions ◽  
Line Narrowing ◽  
Weakly Ionized ◽  
Novel Method

We review the introduction and development of a novel method for the characterization of magnetic fields in star-forming regions. The technique is based on the comparison of spectral line profiles from coexistent neutral and ion molecular species commonly detected in molecular clouds, sites of star formation. Unlike other methods used to study magnetic fields in the cold interstellar medium, this ion/neutral technique is not based on spin interactions with the field. Instead, it relies on and takes advantage of the strong cyclotron coupling between the ions and magnetic fields, thus exposing what is probably the clearest observational manifestation of magnetic fields in the cold, weakly ionized gas that characterizes the interior of molecular clouds. We will show how recent development and modeling of the ensuing ion line narrowing effect leads to a determination of the ambipolar diffusion scale involving the turbulent component of magnetic fields in star-forming regions, as well as the strength of the ordered component of the magnetic field.

scholarly journals Determination of the critical current density in the d-wave superconductor YBCO under applied magnetic fields by nodal tunnelling

2004 ◽  
Vol 17 (8) ◽  
pp. 1069-1071 ◽  
Author(s):  
Roy Beck ◽  
Guy Leibovitch ◽  
Alexander Milner ◽  
Alexander Gerber ◽  
Guy Deutscher
Keyword(s):  
Magnetic Fields ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
D Wave
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