Mixed Magnetic Ordering: Magnetic Susceptibility and Mössbauer Studies on Iron(III) Tellurate (Fe2TeO6)

1968 ◽  
Vol 49 (7) ◽  
pp. 3201-3203 ◽  
Author(s):  
J. T. Dehn ◽  
R. E. Newnham ◽  
L. N. Mulay
Keyword(s):  
Magnetic Susceptibility ◽  
Magnetic Ordering ◽  
Mössbauer Studies

Superconductivity and Magnetic Ordering of Pr in CaLa1-xPrxBaCu3O7 System

1997 ◽  
Vol 11 (07) ◽  
pp. 323-331 ◽  
Author(s):  
V. P. S. Awana ◽  
Rajvir Singh ◽  
D. A. Landinez Tellez ◽  
J. M. Ferreira ◽  
J. Albino Aguiar ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Normal State ◽  
Ac Susceptibility ◽  
Magnetic Ordering ◽  
X Ray Diffraction ◽  
X Ray ◽  
Antiferromagnetic Ordering ◽  
Peak Intensity ◽  
Heat Capacity Measurements ◽  
A Minor

We present the results of superconductivity, normal state magnetic susceptibility and heat capacity measurements on the tetragonal CaLa 1-x Pr x BaCu 3 O 7 compound. Ac susceptibility measurements show that the transition temperature T c of the unsubstituted sample decreases with an increase in the Pr concentration. Normal state dc magnetic susceptibility measurements performed in an applied field of 0.5 T show a Curie–Weiss behaviour in terms of the paramagnetic moment of Pr. The effective paramagnetic moment of Pr appears to be intermediate between those of the free Pr 3+ and Pr 4+ ions. For the nonsuperconducting samples i.e., x = 0.70 and 1.0, we observe an antiferromagnetic ordering temperature T N of nearly 4 K and 8 K respectively. The X-ray diffraction results show that the CaPrBaCu 3 O 7 compound is free from other phases, having a minor (less than 8%, in terms of peak intensity) impurity phase. The lower T N (8 K) of PrBaCaCu 3 O 7 as compared to the known antiferromagnetic ordering temperature of 17 K for PrBa 2 Cu 3 O 7 indicates a less deleterious effect of Pr in the present case.

NUCLEAR MAGNETISM OF HELIUM-3 PRECIPITATES

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3368-3368
Author(s):  
V. A. SHVARTS ◽  
K. J. KLESS ◽  
N. MATSUNAGA ◽  
E. D. ADAMS ◽  
J. X. XIA ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Phase Separation ◽  
Liquid Droplet ◽  
Magnetic Ordering ◽  
Solid Sample ◽  
Nuclear Magnetism ◽  
Weiss Constant ◽  
Simultaneous Measurements ◽  
Helium 3 ◽  
Made In

Simultaneous measurements of magnetic susceptibility from 0.5 to 10 mK and pressure from 2.88 to 3.54 MPa have been made in 3He nanoclusters embedded in a 4He matrix, following phase separation. The susceptibility of the 3.54 MPa, all –solid sample behaves similarly to that of bulk 3He for v = 21.3 cm3/mole, with a Weiss constant θ = -250μK. For the 2.88 MPa, liquid-droplet sample, θ = 140μK, indicating a ferromagnetic tendency, similar to 2-D films at some coverages. At intermediate pressures, χ has a peak near 1.05 mK, but without a discontinuity. For all samples, χ had a solid-like contribution to the lowest temperatures. Magnetic ordering in nano-clusters appears to be different than the U2D2 phase of bulk 3He.

Mössbauer studies of magnetic ordering in amorphous (FexMn1−x)75P16B6Al3 under external magnetic fields

1981 ◽  
Vol 52 (3) ◽  
pp. 1750-1752 ◽  
Author(s):  
C. L. Chien ◽  
J. H. Hsu ◽  
P. J. Viccaro ◽  
B. D. Dunlap ◽  
G. K. Shenoy ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Magnetic Ordering ◽  
Mössbauer Studies

Molecular-based compounds exhibiting a spontaneous magnetization

1990 ◽  
Vol 330 (1610) ◽  
pp. 195-204 ◽  
Keyword(s):  
Heat Capacity ◽  
Magnetic Susceptibility ◽  
Broad Spectrum ◽  
Spontaneous Magnetization ◽  
Magnetic Ordering ◽  
Molecular Chemistry ◽  
Regular Chain ◽  
Capacity Data ◽  
Alternating Chain ◽  
Chain Compound

One of the main challenges in the field of the molecular materials is the design of molecular-based ferromagnets. My basic strategy along this line consists of assembling ferrimagnetic chains within the crystal lattice in a ferromagnetic fashion. This can be achieved owing to the (almost) limitless flexibility of the molecular chemistry. The chains may be either regular or alternating. Examples of both situations are presented. MnCu(pbaOH) (H 2 O) 3 (pbaOH = 2-hydroxy-1,3-propylenebis(oxamato)) is a regular chain compound ordering ferromagnetically at T e 4.6 K, and MnCu(obbz) . 1H 2 O (obbz = oxamido-N,N'-bis(2-benzoato)) is an alternating chain compound exhibiting a spontaneous magnetization below T e = 14 K. To get information on the mechanism of the magnetic ordering, a broad spectrum of physical techniques is utilized, including magnetic susceptibility and magnetization measurements, EPR spectroscopy and heat capacity data. The perspectives in this new field are outlined.

Magnetic susceptibility, resistivity and 151Eu Mössbauer studies on Zn-substituted EuBa2Cu3O7-y

1990 ◽  
Vol 75 (1) ◽  
pp. 59-62 ◽  
Author(s):  
C.V. Tomy ◽  
R. Nagarajan ◽  
S.K. Malik ◽  
Ram Prasad ◽  
N.C. Soni ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Mössbauer Studies

Magnetic susceptibility and 151Eu Mössbauer studies on cubic ternary compounds: EuPtSi and EuPdSi

1990 ◽  
Vol 89 (3) ◽  
pp. 375-378 ◽  
Author(s):  
D.T. Adroja ◽  
B.D. Padalia ◽  
S.K. Malik ◽  
R. Nagarajan ◽  
R. Vijayaraghavan
Keyword(s):  
Magnetic Susceptibility ◽  
Mössbauer Studies ◽  
Ternary Compounds

Notizen: Low Temperature Magnetic Susceptibility of Sm2(WO4)3

1975 ◽  
Vol 30 (12) ◽  
pp. 1783-1784 ◽  
Author(s):  
H.B. Lal ◽  
Naseeb Dar
Keyword(s):  
Magnetic Susceptibility ◽  
Low Temperature ◽  
Crystal Field ◽  
Low Temperatures ◽  
Magnetic Ordering ◽  
Magnetic Exchange ◽  
Temperature Range ◽  
Powder Samples

Abstract The magnetic susceptibility of powder samples of Sm2(WO4)3 has been measured in the temperature range 4.2 to 300 K. At low temperatures the measured values disagree with those calculated for Sm3+-ions using Van Vleck's theory. The high values below 100 K are assigned to magnetic exchange and dipol interactions. There might be magnetic ordering below 4.2 K. The effects of the crystal field and impurities have been shown to be unimportant.

Transport Properties and Magnetism of β-MnO2

1999 ◽  
Vol 602 ◽  
Author(s):  
H. Sato ◽  
T. Enoki ◽  
K. Wakiya ◽  
M. Isobe ◽  
Y. Ueda ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Single Crystal ◽  
Transport Properties ◽  
Strong Coupling ◽  
Lattice Distortion ◽  
Magnetic Ordering ◽  
Temperature Dependent ◽  
X Ray ◽  
Conduction Electrons ◽  
Comprehensive Study

AbstractA comprehensive study of transport properties and magnetism on β-MnO2 reveals the strong coupling between the conduction electrons and the localized spins which are supposed to form a magnetic helix below TN ∼ 92 K. We also show the direct evidences of the helical magnetism by means of the measurements of the anisotropy in the magnetic susceptibility and the observation of x ray magnetic scatterings on a single crystal of β-MnO2. These results are consistent with proper-type helix model proposed by Yoshimori [J. Phys. Soc. Jpn. 14, p. 807 (1959)]. This model also qualitatively agrees with the anisotropy in magnetoresistance that appears below TN. The pitch of the magnetic helix is not commensurate to the lattice and it is slightly temperature dependent. The intensity of several Bragg peaks drastically changes at TN suggesting that the magnetic ordering is accompanied by a lattice distortion.

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