Transport properties of local spin fluctuation systems

1974 ◽  
Vol 17 (1-2) ◽  
pp. 87-100 ◽  
Author(s):  
K. Fischer
Keyword(s):  
Transport Properties ◽  
Spin Fluctuation ◽  
Local Spin

Long-range correlations in local spin fluctuation systems

1972 ◽  
Vol 11 (12) ◽  
pp. 1703-1708 ◽  
Author(s):  
K. Fischer ◽  
P. Radhakrishna
Keyword(s):  
Long Range ◽  
Spin Fluctuation ◽  
Long Range Correlations ◽  
Local Spin

Field Dependent Susceptibility and Localized Spin Fluctuations in PdRhNi Alloys

1975 ◽  
Vol 53 (2) ◽  
pp. 145-150 ◽  
Author(s):  
R. W. Cochrane ◽  
F. T. Hedgcock ◽  
J. P. Tidman ◽  
M. J. Zuckermann
Keyword(s):  
Low Temperature ◽  
Magnetic Fields ◽  
Concentration Dependence ◽  
Spin Fluctuation ◽  
Spin Fluctuations ◽  
Magnetization Measurements ◽  
Scaling Parameter ◽  
Local Spin ◽  
Field Dependent

Low temperature magnetization measurements in magnetic fields up to 55 kOe are reported for a series of PdRhNi alloys containing 1 to 7 at.% Rh and up to 1 at.% Ni. These data indicate a critical Ni concentration for ferromagnetism close to 2 at.%. Comparison of the field and concentration dependence of the susceptibility to the magnetoresistance data of Purwins et al. reveals that the coefficient of the T2 local spin fluctuation resistivity scales directly with the nickel susceptibility. Experimentally, the scaling parameter varies only slightly with Rh concentration, a result which extends to the binary PdNi alloys.

scholarly journals Transport Properties of Nearly Magnetic Alloys and Metals

1983 ◽  
Vol 36 (4) ◽  
pp. 537 ◽  
Author(s):  
AB Kaiser
Keyword(s):  
Electronic Structure ◽  
Transport Properties ◽  
Spin Fluctuation ◽  
Magnetic Alloys ◽  
Dilute Alloys ◽  
Pure Metals

We give an elementary review of how simple spin fluctuation models can account for the distinctive transport properties of nearly magnetic alloys and metals. The principal systems considered are dilute alloys such as PdNi in which host and impurity have somewhat similar electronic structure but with the impurity more nearly magnetic than the host. Similar effects occurring in pure metals or concentrated alloys are also mentioned.

A temperature-dependent self-consistent calculation of localized-spin–fluctuation effects in AlMn

1976 ◽  
Vol 54 (7) ◽  
pp. 771-774 ◽  
Author(s):  
C.Y. Cheung
Keyword(s):  
Temperature Dependence ◽  
Spin Fluctuation ◽  
Fluctuation Theory ◽  
Effective Density ◽  
Temperature Dependent ◽  
Local Spin ◽  
Consistent Calculation ◽  
Quantitative Effect ◽  
Self Consistent ◽  
Fluctuation Effects

The renormalized local-spin–fluctuation theory of Paton and Zuckermann is extended in a temperature-dependent calculation. It is found that the temperature dependence of the renormalization parameters produce significant quantitative effect in the linear-T region of the effective density of d states.

Magnetotransport in Thin Films of Lan-nxCa1+nxMnnO3n+1 (n=2,3, and ∞)

1997 ◽  
Vol 494 ◽  
Author(s):  
H. Asano ◽  
J. Hayakawa ◽  
M. Matsui
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Transport Properties ◽  
Carrier Concentration ◽  
Spin Fluctuation ◽  
Two Dimensional ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Number Of Layers ◽  
The Difference

ABSTRACTWith a use of the epitaxial a-axis thin films of perovskite series Lan-nxCa1+nxMnnO3n+1 (n=2,3, and ∞) with fixed carrier concentration (x=0.3), the transport properties of the series compounds have been examined to be associated with the difference in the number of the MnO2 layers. Results have indicated that a reduction in the number of layers results in systematic changes in the various features. These include an increase in resistivity, a decrease in resistivity peak temperature Tcρ corresponding to the metal-insulator transition, an enhancement of the maximum MR near Tcρ, and an increase in low temperature intrinsic MR. In order to explain the variation in these features with the number of MnO2 layers, it is necessary to take both anisotropie c-axis transfer interaction and two-dimensional spin fluctuation into account.

Spectroscopic Diagnostics of Tokamaks

1988 ◽  
Vol 102 ◽  
pp. 165-174
Author(s):  
C. de Michelis
Keyword(s):  
Transport Properties ◽  
Power Losses ◽  
Spectroscopic Diagnostics ◽  
Important Concern

AbstractImpurities being an important concern in tokamaks, spectroscopy plays a key role in their understanding. Techniques for the evaluation of concentrations, power losses and transport properties are surveyed, and a few developments are outlined.

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