scholarly journals Continuous melting of a partially pinned two-dimensional vortex lattice in a square array of pinning centers

2002 ◽  
Vol 66 (21) ◽  
Author(s):  
Toby Joseph ◽  
Chandan Dasgupta
Keyword(s):  
Vortex Lattice ◽  
Two Dimensional ◽  
Pinning Centers ◽  
Continuous Melting ◽  
Square Array

Calculation of the shear modulus of a two-dimensional vortex lattice

1994 ◽  
Vol 49 (22) ◽  
pp. 16074-16077 ◽  
Author(s):  
R. Šášik ◽  
D. Stroud
Keyword(s):  
Shear Modulus ◽  
Vortex Lattice ◽  
Two Dimensional

A Novel Micromechanical Resonator Using Two-Dimensional Phononic Crystal Slab

2011 ◽  
Vol 254 ◽  
pp. 195-198
Author(s):  
Nan Wang ◽  
Fu Li Hsiao ◽  
Moorthi Palaniapan ◽  
Ming Lin Julius Tsai ◽  
Jeffrey B.W. Soon ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Phononic Crystal ◽  
Acoustic Resonance ◽  
Two Dimensional ◽  
Free Standing ◽  
Sensing Applications ◽  
Aln Film ◽  
Digital Transducers ◽  
Square Array ◽  
Quality Factor Q

Two-dimensional (2-D) Silicon phononic crystal (PnC) slab of a square array of cylindrical air holes in a 10μm thick free-standing silicon plate with line defects is characterized as a cavity-mode PnC resonator. Piezoelectric aluminum nitride (AlN) film is deployed as the inter-digital transducers (IDT) to transmit and detect acoustic waves, thus making the whole microfabrication process CMOS-compatible. Both the band structure of the PnC and the transmission spectrum of the proposed PnC resonator are analyzed and optimized using finite element method (FEM). The measured quality factor (Q factor) of the microfabricated PnC resonator is over 1,000 at its resonant frequency of 152.46MHz. The proposed PnC resonator shows promising acoustic resonance characteristics for RF communications and sensing applications.

Temporal Evolution of Grain Size Distributions in Two-Dimensional Pinned Cells

2004 ◽  
Vol 467-470 ◽  
pp. 1003-1008
Author(s):  
C.H. Wörner ◽  
A. Olguín
Keyword(s):  
Grain Size ◽  
Grain Growth ◽  
Experimental Approach ◽  
Temporal Evolution ◽  
Size Distributions ◽  
Two Dimensional ◽  
Pinning Centers ◽  
Grain Size Distributions ◽  
Polycrystalline Aggregates

The distribution of sizes for grain growth in presence of pinning centers (Zener pinned growth) is communicated at different times. The experimental approach uses the well-known similitude between growth in polycrystalline aggregates and cellular soap froths. Two-dimensional results are communicated with grain growth limited by a set of randomly distributed rounded pins.

Sign in / Sign up

Export Citation Format

Share Document