Low-temperature Moessbauer spectroscopy study of some partially solvated tris(dialkyldithiocarbamato) iron(III) complexes: the possibility of stabilization of a spin-quartet ground state

1981 ◽  
Vol 20 (10) ◽  
pp. 3484-3486 ◽  
Author(s):  
Glenn A. Eisman ◽  
William M. Reiff ◽  
Ray J. Butcher ◽  
Ekk. Sinn
Keyword(s):  
Low Temperature ◽  
Ground State ◽  
Spectroscopy Study ◽  
Moessbauer Spectroscopy

Raman spectroscopy study of acetonitrile at low temperature

2021 ◽  
Vol 246 ◽  
pp. 119065
Author(s):  
Shuo Zhang ◽  
Hongsheng Jia ◽  
Mingxing Song ◽  
He Shen ◽  
Li Dongfei ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Low Temperature ◽  
Spectroscopy Study

LOW-TEMPERATURE NORMAL-STATE HALL EFFECT IN HIGH-TcBi2Sr2-xLaxCuO6+δ REVEALED BY 60 T MAGNETIC FIELDS

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3171-3174
Author(s):  
F. F. BALAKIREV ◽  
J. B. BETTS ◽  
G. S. BOEBINGER ◽  
S. ONO ◽  
Y. ANDO ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
Carrier Concentration ◽  
Hall Coefficient ◽  
Normal State ◽  
Ground State ◽  
Low Temperatures ◽  
Optimal Doping ◽  
Underdoped Sample ◽  
Additional Support

We report low-temperature Hall coefficient in the normal state of the high-Tc superconductor Bi 2 Sr 2-x La x CuO 6+δ. The Hall coefficient was measured down to 0.5 K by suppressing superconductivity with a 60 T pulsed magnetic field. The carrier concentration was varied from overdoped to underdoped regimes by partially substituting Sr with La in a set of five samples. The observed saturation of the Hall coefficient at low temperatures suggests the ability to extract the carrier concentration of each sample. The most underdoped sample exhibits a diverging Hall coefficient at low temperatures, consistent with a depletion of carriers in the insulating ground state. The Hall number exhibits a sharp peak providing additional support for the existence of a phase boundary at the optimal doping.

scholarly journals EPR Spectroscopy Study of the Radical Cation Cluster (η⁵-C₅H₅)(CO)₅ReFePt(μ₃-C=CHPh)(η²-Ph₂P(CH₂)₂PPh₂)

2019 ◽  
pp. 573-579
Author(s):  
Nikolay G. Maksimov ◽  
Victor V. Verpekin ◽  
Dmitry V. Zimonin ◽  
Galina V. Burmakina ◽  
Oleg S. Chudin ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Low Temperature ◽  
Radical Cation ◽  
Unpaired Electron ◽  
Iron Atom ◽  
Epr Spectroscopy ◽  
Binuclear Complex ◽  
Chemical Oxidation ◽  
Spectroscopy Study ◽  
Model Spectrum

The chemical oxidation of the cluster CpReFePt(μ3-C=CHPh)(CO)5(dppe) (Cp = η5-C5H5, dppe = η2- Ph2P(CH2)2PPh2) resulted in a radical cation [CpReFePt(μ3-C=CHPh)(CO)5(dppe)]+• that is sufficiently stable only at low temperature. An electronic structure of the radical cation was studied by EPR and following parameters were obtained by comparison of the experimental and model spectrum: gx = 2.070 gy = 2.0295 gz = 1.997; Ax(31P) = 17 Ay(31P) = 49 Az(31P) = 35 (Gs);Ax(195Pt) = 62 Ay(195Pt) = 45 Az(195Pt) = 105 (Gs). An unpaired electron is seen to be mainly concentrated on the iron atom (85-90%) and partially on the platinum atom (10-15%). Further transformation of the radical cation led to the formation of the binuclear complex Cp(CO)2RePt(μ-C=CHPh)(dppe) and the Fe-carbonyl fragment

ChemInform Abstract: A Moessbauer Spectroscopy Study of Eu0.1(NH3)0.3TiS2 and Eu0.1TiS2

ChemInform ◽  
1989 ◽  
Vol 20 (50) ◽  
Author(s):  
P. COLOMBET ◽  
W. S. GLAUNSINGER ◽  
M. DANOT ◽  
J. ROUXEL
Keyword(s):  
Spectroscopy Study ◽  
Moessbauer Spectroscopy
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