FERROMAGNETIC TDAE-C60 VERSUS PARAMAGNETIC TDAE-C70: FARADEY BALANCE AND ESR STUDY

1992 ◽  
Vol 06 (23n24) ◽  
pp. 3953-3958 ◽  
Author(s):  
Kazuyoshi Tanaka ◽  
Anvar A. Zakhidov ◽  
Kazunari Yoshizawa ◽  
Kenji Okahara ◽  
Tokio Yamabe ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Fullerene Molecule ◽  
The Other ◽  
Temperature Range ◽  
Type Transition ◽  
Other Hand ◽  
Spin Resonance ◽  
Ordered State

Magnetic properties of C 60 and C 70 complexes with tetrakis(dimethylamino)ethylene (TDAE) have been studied based on the measurements of the Faraday-balance magnetization and the electron spin resonance (ESR). It has been found that both TDAE- C 60 and TDAE- C 70 possess about one radical spin per fullerene molecule. TDAE- C 60 has been confirmed to show ferromagnetic-type transition at Tc=16.7–17.5 K . Appearance of a new broad and intense ESR signal below Tc of TDAE- C 60 suggests that the radical spins in the magnetically ordered state rather localize on each C 60 molecule and are ferromagnetically correlated. On the other hand, TDAE- C 70 does not show ferromagnetism in all the temperature range down to 4.5K.

scholarly journals Magnetic Properties of Li3V2(PO4)3/Li3PO4 Composite

2021 ◽  
Vol 7 (5) ◽  
pp. 64
Author(s):  
Tatiana Gavrilova ◽  
Sergey Khantimerov ◽  
Mikhail Cherosov ◽  
Ruslan Batulin ◽  
Nickolay Lyadov ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Electron Spin Resonance ◽  
Lithium Ion Batteries ◽  
Electron Spin ◽  
Lithium Ion ◽  
Mesoporous Structure ◽  
Thermal Hydrolysis ◽  
Hydrolysis Method ◽  
Spin Resonance ◽  
Simultaneous Existence

Here, we present the investigation of the magnetic properties of Li3V2(PO4)3/Li3PO4 composites, which can be potentially used as a cathode material in lithium-ion batteries. Li3V2(PO4)3/Li3PO4 was synthesized by the thermal hydrolysis method and has a granular mesoporous structure. Magnetic properties of the composite were investigated using magnetometry and electron spin resonance methods. Based on magnetization measurements, the simultaneous existence of the paramagnetic phase with antiferromagnetic interactions between spins of V3+ ions and magnetically correlated regions was suggested. Most probably, magnetically correlated regions were formed due to anti-site defects and the presence of V4+ ions that was directly confirmed by electron spin resonance measurements.

MAGNETIC PROPERTIES OF MESONAPHTHODIANTHRENE

1960 ◽  
Vol 38 (3) ◽  
pp. 323-328 ◽  
Author(s):  
Yoshio Matsunaga
Keyword(s):  
Molecular Structure ◽  
Magnetic Properties ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Diamagnetic Susceptibility ◽  
Central Line ◽  
Resonance Absorption ◽  
Spin Resonance ◽  
Unpaired Electrons ◽  
G Value

Electron spin resonance absorption was detected in mesonaphthodianthrene and mesonaphthodianthrone. The spectra of both of these compounds consist of, at least, seven lines with a separation of 4.4 oersteds and the central line has a g-value of 2.0024 ± 0.0002. The growth of the central line by admission of air was observed in the case of the hydrocarbon. Some suggestions are presented as to the nature of the unpaired electrons in these compounds. The magnitude of the molar diamagnetic susceptibility of mesonaphthodianthrene, after correction for the paramagnetic contribution from the unpaired electrons, is discussed in relation to the molecular structure.

Electron Spin Resonance Study of Low-Dimensional Magnetic Properties of MnF2-CaF2 Superlattices

2001 ◽  
Vol 40 (Part 2, No. 11A) ◽  
pp. L1151-L1153 ◽  
Author(s):  
Shin-ichi Kuroda ◽  
Kazuhiro Marumoto ◽  
Hideji Kihara ◽  
Hironobu Ofuchi ◽  
Masao Tabuchi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Electron Spin Resonance Study ◽  
Spin Resonance ◽  
Low Dimensional ◽  
Spin Resonance Study

Effects of the Dzyaloshinskii–Moriya interaction in Cr3 triangular spin clusters detected by specific heat and multi-frequency electron spin resonance

2015 ◽  
Vol 44 (31) ◽  
pp. 14027-14033 ◽  
Author(s):  
Alberto Ghirri ◽  
Johan van Tol ◽  
Inigo Vitorica-Yrezabal ◽  
Grigore A. Timco ◽  
Richard E. P. Winpenny
Keyword(s):  
Magnetic Properties ◽  
Electron Spin Resonance ◽  
Specific Heat ◽  
Electron Spin ◽  
Spin Resonance ◽  
Spin Clusters ◽  
Complementary Techniques ◽  
Moriya Interaction

An oxo-centered [Cr3O(O2CtBu)6(H2O)3](O2CtBu) HO2CtBu·2EtOH triangular cluster has been synthesized and its magnetic properties have been studied by means of complementary techniques.

Electron spin resonance studies and improved magnetic properties of Gd substituted BiFeO3 ceramics

2015 ◽  
Vol 41 (1) ◽  
pp. 777-786 ◽  
Author(s):  
Manoj Kumar ◽  
Prakash Chandra Sati ◽  
Sandeep Chhoker ◽  
Vivek Sajal
Keyword(s):  
Magnetic Properties ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Spin Resonance

Nickel(II) and copper(II) complexes of the 'tripod' ligand tris(2-benzimidazylmethyl)amine

1978 ◽  
Vol 56 (10) ◽  
pp. 1311-1318 ◽  
Author(s):  
Laurence K. Thompson ◽  
Baratham S. Ramaswamy ◽  
Robert D. Dawe
Keyword(s):  
Electron Spin Resonance ◽  
Solid State ◽  
Electron Spin ◽  
Copper Complexes ◽  
Acetone Solution ◽  
The Other ◽  
Solution Structures ◽  
Spin Resonance ◽  
Resonance Data ◽  
Electron Spin Resonance Data

A series of nickel(II) and copper(II) complexes of the title ligand are reported which appear to exhibit predominantly pseudo-octahedral structures in the solid state. Anion bridged dimeric structures are proposed for both nickel and copper; [Ni2(NTB)2X2]Y2 (X = Y= Cl, Br; X = Cl, Br, NCS; Y = BPh4), [Cu2(NTB)2X2]X2•2H2O (X = Cl, Br). The other octahedral derivatives appear to be monomeric; (Ni(NTB)X2] (X = NO3, NCS), [Ni(NTB)-(H2O)X]Y (X = NCS, Y = BPh4; X = CH3CN, Y = (ClO4)2), [Ni(NTB)(H2O)2]X2•2H2O (X = ClO4, BF4), [Cu(NTB)(NO3)2]•H2O. Five-coordinate derivatives were uncommon and in the case of three copper complexes trigonalbipyramidal structures are suggested in the solid state; [Cu(NTB)CI]BPh4, [Cu(NTB)(H2O)]X2•nH2O (X = BF4, n = 0; X = ClO4, n = 1). In acetone solution ail the copper complexes appear to be five-coordinate. Electron spin resonance data confirm trigonalbipyramidal solution structures and indicate [Formula: see text]with very small values of [Formula: see text] (60 − 80 × 10−4 cm−1).

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