Physical Origin and Theoretical Limit of the Phase Stability of a Spin-Torque Oscillator Stabilized by a Phase-Locked Loop

2017 ◽  
Vol 7 (6) ◽  
Author(s):  
Shingo Tamaru ◽  
Hitoshi Kubota ◽  
Kay Yakushiji ◽  
Akio Fukushima ◽  
Shinji Yuasa
Keyword(s):  
Phase Stability ◽  
Phase Locked Loop ◽  
Spin Torque ◽  
Physical Origin ◽  
Theoretical Limit

Analysis of phase noise in a spin torque oscillator stabilized by phase locked loop

2016 ◽  
Vol 9 (5) ◽  
pp. 053005 ◽  
Author(s):  
Shingo Tamaru ◽  
Hitoshi Kubota ◽  
Kay Yakushiji ◽  
Akio Fukushima ◽  
Shinji Yuasa
Keyword(s):  
Phase Noise ◽  
Phase Locked Loop ◽  
Spin Torque

scholarly journals Extremely Coherent Microwave Emission from Spin Torque Oscillator Stabilized by Phase Locked Loop

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Shingo Tamaru ◽  
Hitoshi Kubota ◽  
Kay Yakushiji ◽  
Shinji Yuasa ◽  
Akio Fukushima
Keyword(s):  
Phase Locked Loop ◽  
Microwave Emission ◽  
Spin Torque

Generation of Highly Stable Microwave from a Spin Torque Oscillator by Phase Locked Loop

2015 ◽  
Author(s):  
S. Tamaru ◽  
H. Kubota ◽  
K. Yakushiji ◽  
S. Yuasa ◽  
A. Fukushima
Keyword(s):  
Phase Locked Loop ◽  
Spin Torque

Noise reduction of spin torque oscillator by phase-locked loop with combinational frequency tuning method

2020 ◽  
Vol 117 (7) ◽  
pp. 072407
Author(s):  
Lang Zeng ◽  
Xichuan Ma ◽  
Hao-Hsuan Chen ◽  
Yan Zhou ◽  
Deming Zhang ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Frequency Tuning ◽  
Phase Locked Loop ◽  
Spin Torque ◽  
Tuning Method

Stabilization of phase noise in vortex spin torque nano-oscillators by a Phase Locked Loop

2017 ◽  
Author(s):  
M. Kreissig ◽  
S. Wittrock ◽  
R. Lebrun ◽  
S. Menshawy ◽  
F. Protze ◽  
...  
Keyword(s):  
Phase Noise ◽  
Phase Locked Loop ◽  
Spin Torque

scholarly journals Vortex spin-torque oscillator stabilized by phase locked loop using integrated circuits

AIP Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 056653 ◽  
Author(s):  
Martin Kreissig ◽  
R. Lebrun ◽  
F. Protze ◽  
K. J. Merazzo ◽  
J. Hem ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Phase Locked Loop ◽  
Spin Torque

Influence of output power of a spin torque oscillator on phase locked loop operation

2016 ◽  
Vol 55 (9) ◽  
pp. 093003 ◽  
Author(s):  
Shingo Tamaru ◽  
Hitoshi Kubota ◽  
Kay Yakushiji ◽  
Akio Fukushima ◽  
Shinji Yuasa
Keyword(s):  
Output Power ◽  
Phase Locked Loop ◽  
Spin Torque

Theory of spin torque nano-oscillator-based phase-locked loop

2017 ◽  
Vol 122 (12) ◽  
pp. 123903 ◽  
Author(s):  
Alexander A. Mitrofanov ◽  
Ansar R. Safin ◽  
Nikolay N. Udalov ◽  
Mikhail V. Kapranov
Keyword(s):  
Phase Locked Loop ◽  
Spin Torque

Homochirality as the Signature of Extra-Terrestrial Life

1997 ◽  
Vol 161 ◽  
pp. 505-510
Author(s):  
Alexandra J. MacDermott ◽  
Laurence D. Barron ◽  
Andrè Brack ◽  
Thomas Buhse ◽  
John R. Cronin ◽  
...  
Keyword(s):  
Amino Acids ◽  
Protein Synthesis ◽  
Optical Rotation ◽  
Physical Origin ◽  
Natural Choice ◽  
Rosetta Mission ◽  
Terrestrial Life ◽  
Subsurface Layers ◽  
Solar System Bodies ◽  
Origin Of Homochirality

AbstractThe most characteristic hallmark of life is its homochirality: all biomolecules are usually of one hand, e.g. on Earth life uses only L-amino acids for protein synthesis and not their D mirror images. We therefore suggest that a search for extra-terrestrial life can be approached as a Search for Extra- Terrestrial Homochirality (SETH). The natural choice for a SETH instrument is optical rotation, and we describe a novel miniaturized space polarimeter, called the SETH Cigar, which could be used to detect optical rotation as the homochiral signature of life on other planets. Moving parts are avoided by replacing the normal rotating polarizer by multiple fixed polarizers at different angles as in the eye of the bee. We believe that homochirality may be found in the subsurface layers on Mars as a relic of extinct life, and on other solar system bodies as a sign of advanced pre-biotic chemistry. We discuss the chiral GC-MS planned for the Roland lander of the Rosetta mission to a comet and conclude with theories of the physical origin of homochirality.

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