✦ LIBER ✦

Coupling Efficiency for Phase Locking of a Spin Transfer Nano-Oscillator to a Microwave Current

✍ Scribed by Georges, B.; Grollier, J.; Darques, M.; Cros, V.; Deranlot, C.; Marcilhac, B.; Faini, G.; Fert, A.

Book ID: 120574741
Publisher: The American Physical Society
Year: 2008
Tongue: English
Weight: 439 KB
Volume: 101
Category: Article
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.101.017201

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Phase locking of vortex based spin trans

Phase locking of vortex based spin transfer oscillators to a microwave current

✍ Dussaux, A.; Khvalkovskiy, A. V.; Grollier, J.; Cros, V.; Fukushima, A.; Konoto, 📂 Article 📅 2011 🏛 American Institute of Physics 🌐 English ⚖ 871 KB

Perfect and robust phase-locking of a sp

Perfect and robust phase-locking of a spin transfer vortex nano-oscillator to an external microwave source

✍ Hamadeh, A.; Locatelli, N.; Naletov, V. V.; Lebrun, R.; de Loubens, G.; Grollier 📂 Article 📅 2014 🏛 American Institute of Physics 🌐 English ⚖ 925 KB

Solid-Liquid Phase Transfer Catalysis Wi

Solid-Liquid Phase Transfer Catalysis Without Solvent Coupled with Microwave Irradiation: A Quick and Efficient Method for Saponification of Esters

✍ Loupy, André; Pigeon, Philippe; Ramdani, Mohamed; Jacquault, Patrick 📂 Article 📅 1994 🏛 Taylor and Francis Group 🌐 English ⚖ 209 KB

Theta bandwidth determines human visual

Theta bandwidth determines human visual working memory capacity Human visual short term memory (VSTM) is capacity limited1. The neurophysiological basis for this limitation is, however, currently unknown. Here we apply the principle of efficient information transfer, derived from communications theory, to provide a mechanistic account of VSTM capacity. Shannon's information theory states that to increase the capacity of information encoded along a frequency axis, it is more efficient to expand the bandwidth than to increase the transmitted power for a given level of noise2. By applying Shannon's principles to human magnetoencephalography (MEG) recordings of oscillatory activity in the theta band during a VSTM task, we demonstrate that increasing memory load to capacity induces a parametric shift in theta frequency band during the delay period, from 4 to 8 Hz, in a right fronto-parietal network. Critically, we show that an individual's VSTM capacity is proportional to that parametric shift. Thus, the adherence of cortical neuronal oscillations to a fundamental principle of efficient information transfer appears to underlie the limited nature of visual representation in short-term memory.

✍ Moran, R.J.; Strange, B.A.; Campo, P.; Dolan, R.J. 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 142 KB