scholarly journals A ferroelectric liquid crystal confined in cylindrical nanopores: reversible smectic layer buckling, enhanced light rotation and extremely fast electro-optically active Goldstone excitations

Nanoscale ◽  
2017 ◽  
Vol 9 (48) ◽  
pp. 19086-19099 ◽  
Author(s):  
Mark Busch ◽  
Andriy V. Kityk ◽  
Wiktor Piecek ◽  
Tommy Hofmann ◽  
Dirk Wallacher ◽  
...  

Birefringence and neutron diffraction experiments reveal an exceptional structure, phase transformation behavior and functionality in chiral mesogen/mesopore hybrids.

2002 ◽  
Vol 80 (14) ◽  
pp. 2439-2441 ◽  
Author(s):  
Keizo Nakayama ◽  
Junji Ohtsubo ◽  
Masanori Ozaki ◽  
Katsumi Yoshino

2011 ◽  
Vol 158 (8) ◽  
pp. A890 ◽  
Author(s):  
Kevin Rhodes ◽  
Roberta Meisner ◽  
Yoongu Kim ◽  
Nancy Dudney ◽  
Claus Daniel

2003 ◽  
Vol 795 ◽  
Author(s):  
Jae-il Jang ◽  
Songqing Wen ◽  
M. J. Lance ◽  
I. M. Anderson ◽  
G. M. Pharr

ABSTRACTNanoindentation experiments were performed on single crystals of (100) Si using a series of triangular pyramidal indenters with centerline-to-face angles in the range 35.3° to 85.0°. The influences of the indenter geometry on cracking and phase transformation during indentation were systematically studied. Although reducing the indenter angle reduces the threshold load for cracking and increases the crack lengths, c, at a given indention load, P, the frequently observed relation between P and c3/2 is maintained for all of the indenters over a wide range of load. Features in the nanoindentation load-displacement curves in conjunction with Raman spectroscopy of the crystalline and amorphous phases in and around the contact impression show that the indenter geometry also plays a role in the phase transformation behavior. Results are discussed in relation to prevailing ideas about indentation cracking and phase transformation in silicon.


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