The magnetic phase transition in layered cesium rare earth metal dimolybdates

1989 ◽  
Vol 50 (11) ◽  
pp. 1297-1299 ◽  
Author(s):  
P. Stefányi ◽  
A. Feher ◽  
A. Orendáčová ◽  
E.E. Anders ◽  
A.I. Zvyagin
1995 ◽  
Vol 52 (5) ◽  
pp. 3546-3554 ◽  
Author(s):  
R. Reisser ◽  
R. K. Kremer ◽  
A. Simon

2021 ◽  
Vol 540 ◽  
pp. 168445
Author(s):  
Shuli Sun ◽  
Rui Liu ◽  
Guiquan Yao ◽  
Zhaohui Chen ◽  
Qiang Wang ◽  
...  

2015 ◽  
Vol 233-234 ◽  
pp. 145-148 ◽  
Author(s):  
Zoya Kazei ◽  
Vyacheslav Snegirev ◽  
Alexander Andreenko ◽  
Ludmila Kozeeva ◽  
Margarita Kameneva

It has been found that the temperature dependences of the Young’s modulus for rare-earth cobaltites RBaCo4O7 (R = Dy - Er, Y) exhibit significant hysteresis and irreversible effects over a wide range (80–280) K between the structural and magnetic phase transition temperatures. At the magnetic phase transition temperature, there are weak and smoothed anomalies of the Young’s modulus, which correlate with the low dimensionality and frustration of the exchange interactions in the Kagome lattice of the Co subsystem for the studied rare-earth cobaltites.


2009 ◽  
Vol 13 (08n09) ◽  
pp. 927-932 ◽  
Author(s):  
Hidetomo Mukai ◽  
Kazuaki Hatsusaka ◽  
Kazuchika Ohta

It has long been believed that the phase transition behavior and clearing points (c.p.s.) of phthalocyanine-based metallomesogens scarcely change regardless of the kind of central metal. In this work, we have synthesized a series of novel sandwich-type phthalocyanine-based lanthanoid complexes, bis[2,3,9,10,16,17,23,24-octakis(3,4-didodecyloxyphenoxy)phthalocyaninato]lanthanoid(III) (abbreviated as {[(C12O)2PhO]8Pc}2M, M = La, Ce, Eu, Gd, Tb, Yb and Lu : 1–7). Their mesomorphic properties were investigated by polarization microscope, DSC and temperature-dependent X-ray diffraction techniques to compare with the phase transition behavior and c.p.s. of the complexes. Very interestingly, the c.p.s. of these seven rare-earth metal complexes increased in an order of La (1) → Ce (2) → Eu (3), reached to a maximum for Gd (4), and decreased in an order of Tb (5) → Yb (6) → Lu (7). We have noticed that their rise and fall of c.p.s. correspond to the values of total spin quantum number (S) of the central rare-earth metal ions. Thus, it was found, for the first time in metallomesogens, that the S values of central rare-earth metal ions strongly influence their c.p.s.


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