Multiple phase transitions in rare earth R5T4M10 , Ir and )

2007 ◽  
Vol 310 (2) ◽  
pp. 207-213 ◽  
Author(s):  
S. Ramakrishnan ◽  
J.A. Mydosh
1981 ◽  
Vol 39 (11) ◽  
pp. 1189-1192 ◽  
Author(s):  
Z. Fisk ◽  
M.B. Maple ◽  
D.C. Johnston ◽  
L.D. Woolf

Author(s):  
Oleg Bostanjoglo ◽  
Peter Thomsen-Schmidt

Thin GexTe1-x (x = 0.15-0.8) were studied as a model substance of a composite semiconductor film, in addition being of interest for optical storage material. Two complementary modes of time-resolved TEM were used to trace the phase transitions, induced by an attached Q-switched (50 ns FWHM) and frequency doubled (532 nm) Nd:YAG laser. The laser radiation was focused onto the specimen within the TEM to a 20 μm spot (FWHM). Discrete intermediate states were visualized by short-exposure time doubleframe imaging /1,2/. The full history of a transformation was gained by tracking the electron image intensity with photomultiplier and storage oscilloscopes (space/time resolution 100 nm/3 ns) /3/. In order to avoid radiation damage by the probing electron beam to detector and specimen, the beam is pulsed in this continuous mode of time-resolved TEM,too.Short events ( <2 μs) are followed by illuminating with an extended single electron pulse (fig. 1c)


Author(s):  
Simon Engelbert ◽  
Rolf-Dieter Hoffmann ◽  
Jutta Kösters ◽  
Steffen Klenner ◽  
Rainer Pöttgen

Abstract The structures of the equiatomic stannides RERhSn with the smaller rare earth elements Y, Gd-Tm and Lu were reinvestigated on the basis of temperature-dependent single crystal X-ray diffraction data. GdRhSn crystallizes with the aristotype ZrNiAl at 293 and 90 K. For RE = Y, Tb, Ho and Er the HP-CeRuSn type (approximant with space group R3m) is already formed at room temperature, while DyRhSn adopts the HP-CeRuSn type below 280 K. TmRhSn and LuRhSn show incommensurate modulated variants with superspace groups P31m(1/3; 1/3; γ) 000 (No. 157.1.23.1) (γ = 3/8 for TmRhSn and γ = 2/5 for LuRhSn). The driving force for superstructure formation (modulation) is a strengthening of Rh–Sn bonding. The modulation is expressed in a 119Sn Mössbauer spectrum of DyRhSn at 78 K through line broadening.


1982 ◽  
Vol 13 (17) ◽  
Author(s):  
J. C. GIANDUZZO ◽  
R. GEORGES ◽  
B. CHEVALIER ◽  
J. ETOURNEAU ◽  
P. HAGENMULLER ◽  
...  

Author(s):  
VENKATA RAMI REDDY BODDU ◽  
Manikandan Palanisamy ◽  
Lichchhavi Sinha ◽  
Subhash Yadav ◽  
Vilas Pol ◽  
...  

Despite multiple phase transitions occur during Na+ ion intercalation and deintercalation, enhanced charge-discharge rate, and long cycle life are achieved to hexagonal shaped P2-type NaCoO2 cathode for sodium-ion batteries (SIBs)....


2009 ◽  
Author(s):  
David Hebert ◽  
Isabelle Bertron ◽  
Olivier Heuzé ◽  
Mark Elert ◽  
Michael D. Furnish ◽  
...  

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