Coexistence of magnetic order and spin-glass-like phase in the pyrochlore antiferromagnet Na3Co(CO3)2Cl

2013 ◽  
Vol 87 (21) ◽  
Author(s):  
Zhendong Fu ◽  
Yanzhen Zheng ◽  
Yinguo Xiao ◽  
Subhankar Bedanta ◽  
Anatoliy Senyshyn ◽  
...  
Keyword(s):  
Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3947 ◽  
Author(s):  
Ewa Malicka ◽  
Małgorzata Karolus ◽  
Tadeusz Groń ◽  
Adrian Gudwański ◽  
Andrzej Ślebarski ◽  
...  

Structural, electrical, magnetic, and specific heat measurements were carried out on ZnCr2Se4 single crystal and on nanocrystals obtained from the milling of this single crystal after 1, 3, and 5 h, whose crystallite sizes were 25.2, 2.5, and 2 nm, respectively. For this purpose, the high-energy ball-milling method was used. The above studies showed that all samples have a spinel structure, and are p-type semiconductors with less milling time and n-type with a higher one. In turn, the decrease in crystallite size caused a change in the magnetic order, from antiferromagnetic for bulk material and nanocrystals after 1 and 3 h of milling to spin-glass with the freezing temperature Tf = 20 K for the sample after 5 h of milling. The spin-glass behavior for this sample was derived from a broad peak of dc magnetic susceptibility, a splitting of the zero-field-cooling and field-cooling susceptibilities, and from the shift of Tf towards the higher frequency of the ac susceptibility curves. A spectacular result for this sample is also the lack of a peak on the specific heat curve, suggesting a disappearance of the structural transition that is observed for the bulk single crystal.


1997 ◽  
Vol 92 (2) ◽  
pp. 441-444
Author(s):  
L.I. Koroleva ◽  
R.V. Demin ◽  
M.Kh. Mashaev ◽  
D.A. Saiflullaeva ◽  
T.V. Virovets ◽  
...  

2019 ◽  
Vol 45 (12) ◽  
pp. 15171-15177 ◽  
Author(s):  
U.P. Mohammed Rasi ◽  
N.K. Shihab ◽  
S. Angappane ◽  
R.B. Gangineni

2020 ◽  
Vol 4 (8) ◽  
Author(s):  
J. N. Graham ◽  
M. J. Coak ◽  
S. Son ◽  
E. Suard ◽  
J.-G. Park ◽  
...  

2012 ◽  
Vol 121 (5-6) ◽  
pp. 1014-1018 ◽  
Author(s):  
T. Toliński ◽  
A. Kowalczyk ◽  
M. Falkowski ◽  
K. Synoradzki ◽  
G. Chełkowska ◽  
...  

2002 ◽  
Vol 239 (1-3) ◽  
pp. 79-81 ◽  
Author(s):  
C.C. Yang ◽  
S.Y. Wu ◽  
W.-H. Li ◽  
K.C. Lee ◽  
H.D. Yang

2020 ◽  
Vol 1 (2) ◽  
pp. 19-41
Author(s):  
Anteneh Yesigat ◽  
P singh

Superconductivity and magnetism were previously thought as incompatible until the discovery of some rare earth ternary compounds that shows the coexistence of superconductivity and magnetism. In some of the recently discovered iron based layered superconductors superconductivity and diamagnetic order system are coexist. That occurs in only 11 and 122 family. The present works we examine the possibility of coexistence of superconductivity and disorder of magnetic spin is called spin glass when freeze the system that can show the superconductivity and spin glass coexist. In this present work we can examine the possibility of coexistence of superconductivity and spin glass in detailed 11 family of Fe1+ySexTe1−x compound. We show that spin glass like behavior is present in FST for x = 0.1 - 0.15 we present evidence form magnetization measurement and characterized the short-range order with neutron scattering. One of our main results is that the short-range order is structural as well as magnetic order. The factor of magnetic order exchange in long range depend on temperature, pressure, number of doping and other external factor discussed it. We found mathematical expression for superconductor transition TC, spin glass temperature TgSusceptibility x(q), and retardation time τ using for born approximation and digamma function depend on wave vector(q) and cut off frequency(ω) in the region coexistence of superconductivity and spin glass in Fe1+ySexTe1−xcompound.


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