Geodesic
Needle-like properties of the probing RF field of ``magnetic-field” probes based on the single-layer flat coils
Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 3 (2011), pp. 47-51

Voir la notice de l'article provenant de la source Math-Net.Ru

A single-layer flat-coil-oscillator activated by a low power backward tunnel diode has been elaborated and created. As an inductance in a pick-up circuit of the oscillator, such a flat coil served as a "magnetic-field” probe in such a measuring instrument. The created oscillator was activated both without and with an external capacitance C0 in its resonant circuit, i.e. the flat-coil oscillator might be also activated with its own (internal) capacitance $C_c$. Investigation of "probe-formative” capabilities of this research instrument with such an unusual coil (versus $C_0$) showed that with a reduction of the value of this capacitance the feeling (probing) field of such a probe exponentially becomes longer, i.e. these probes become more far-ranging with decreasing $C_0$. The revealed property of "magnetic-field” probes would permit an essential widening of capabilities of flat-coil-based probe microscopes. It may also permit to enhance the efficiency of searching and detection of the nodal structure, arising at an unusual phase transition from the "uniform” to “non-uniform” superconductivity, predicted independently by Fulde and Ferrell, and Larkin and Ovchinnikov.
Keywords: Single-layer Flat-Coil-Oscillator method; SFCO technique based "magnetic-field” probe; Fulde–Ferrel–Larkin–Ovchinnikov superconductivity; measurement technique for the searches of the nodal structure in $\mathrm{FFLO}$-state. 
@article{UZERU_2011_3_a6,
     author = {S. G. Gevorgyan and S. T. Muradyan and B. K. Kurghinyan and M. I. Kerobyan},
     title = {Needle-like properties of the probing {RF} field of ``magnetic-field{\textquotedblright} probes based on the single-layer flat coils},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {47--51},
     publisher = {mathdoc},
     number = {3},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2011_3_a6/}
}
TY  - JOUR
AU  - S. G. Gevorgyan
AU  - S. T. Muradyan
AU  - B. K. Kurghinyan
AU  - M. I. Kerobyan
TI  - Needle-like properties of the probing RF field of ``magnetic-field” probes based on the single-layer flat coils
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2011
SP  - 47
EP  - 51
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2011_3_a6/
LA  - en
ID  - UZERU_2011_3_a6
ER  - 
%0 Journal Article
%A S. G. Gevorgyan
%A S. T. Muradyan
%A B. K. Kurghinyan
%A M. I. Kerobyan
%T Needle-like properties of the probing RF field of ``magnetic-field” probes based on the single-layer flat coils
%J Proceedings of the Yerevan State University. Physical and mathematical sciences
%D 2011
%P 47-51
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZERU_2011_3_a6/
%G en
%F UZERU_2011_3_a6
S. G. Gevorgyan; S. T. Muradyan; B. K. Kurghinyan; M. I. Kerobyan. Needle-like properties of the probing RF field of ``magnetic-field” probes based on the single-layer flat coils. Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 3 (2011), pp. 47-51. http://geodesic.mathdoc.fr/item/UZERU_2011_3_a6/