NQR determination of local magnetic fields in senarmonite (Sb2O3)

1996 ◽  
Vol 251 (3-4) ◽  
pp. 250-251 ◽  
Author(s):  
G.K. Semin ◽  
A.A. Boguslavsky
Keyword(s):  
Magnetic Fields ◽  
Local Magnetic Fields

scholarly journals Comparison of 8-mm solar radio features with local magnetic fields and chromospheric features

1968 ◽  
Vol 35 ◽  
pp. 588-593 ◽  
Author(s):  
V. Efanov ◽  
I. Moiseev ◽  
A. Severny
Keyword(s):  
Magnetic Fields ◽  
Radio Emission ◽  
Solar Radio ◽  
Pass Band ◽  
Solar Image ◽  
Antenna Beam ◽  
Local Magnetic Fields ◽  
Right Ascension ◽  
Made In

The new big 22-m radio-telescope of Crimean Observatory shown on Figure 1 appeared to be of very good quality: for radio emission at λ = 8 mm the antenna beam is 1′.6, the efficiency ≅0·4, and the error of automatic pointing (guiding) does not exceed ±20″. A Dicke type radiometer was used as receiver possessing a sensitivity ≃2°K at the time constant τ = 1 sec, and pass-band ~30 MHz. The error in the contrast determination does not exceed ±0·5% of the level nearly corresponding to that of the quiet Sun. The scanning of the solar image is made in right ascension with velocity 0·5 sec in sec of time, the distance between successive scans in δ being 1′.5. An example of a single scan is shown in Figure 2, where the scan through Jupiter (for the determination of antenna beam) is also presented (for description see Moiseev, 1968).

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.

The Local Magnetic Fields Probed by µ+ in hcp Ferromagnets: Co and Gd

1978 ◽  
Vol 44 (4) ◽  
pp. 1131-1141 ◽  
Author(s):  
Nobuhiko Nishida ◽  
Kanetada Nagamine ◽  
Ryugo S. Hayano ◽  
Toshimitsu Yamazaki ◽  
D. G. Fleming ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Local Magnetic Fields

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

scholarly journals Correlations between charge ordering and local magnetic fields in overdopedYBa2Cu3O6+x

2002 ◽  
Vol 66 (13) ◽  
Author(s):  
J. E. Sonier ◽  
J. H. Brewer ◽  
R. F. Kiefl ◽  
R. H. Heffner ◽  
K. F. Poon ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Charge Ordering ◽  
Local Magnetic Fields

scholarly journals Quantum walks on graphs of the ordered Hamming scheme and spin networks

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Hiroshi Miki ◽  
Satoshi Tsujimoto ◽  
Luc Vinet
Keyword(s):  
Magnetic Fields ◽  
Quantum Walks ◽  
Perfect State ◽  
Spin Networks ◽  
Krawtchouk Polynomials ◽  
Energy Eigenstates ◽  
State Transfer ◽  
Perfect State Transfer ◽  
Local Magnetic Fields ◽  
Basis Vectors

It is shown that the hopping of a single excitation on certain triangular spin lattices with non-uniform couplings and local magnetic fields can be described as the projections of quantum walks on graphs of the ordered Hamming scheme of depth 2. For some values of the parameters the models exhibit perfect state transfer between two summits of the lattice. Fractional revival is also observed in some instances. The bivariate Krawtchouk polynomials of the Tratnik type that form the eigenvalue matrices of the ordered Hamming scheme of depth 2 give the overlaps between the energy eigenstates and the occupational basis vectors.

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