Depth‐dependent magnetic correlation length in terbium (abstract)

1994 ◽  
Vol 75 (10) ◽  
pp. 5959-5959
Author(s):  
P. M. Gehring ◽  
K. Hirota ◽  
C. F. Majkrzak ◽  
G. Shirane
Keyword(s):  
Correlation Length ◽  
Magnetic Correlation

Magnetic Nanoparticle Aggregation States in Ag100-xFex Cosputtered Granular Films Investigated by Magnetic and Magnetotransport Measurements

2005 ◽  
Vol 877 ◽  
Author(s):  
Paolo Allia ◽  
Federica Celegato ◽  
Marco Coisson ◽  
Paola Tiberto ◽  
Franco Vinai ◽  
...  
Keyword(s):  
Free Path ◽  
Temperature Interval ◽  
Correlation Length ◽  
Magnetic Nanoparticle ◽  
Magnetic Moments ◽  
Mean Free Path ◽  
Nanoparticle Aggregation ◽  
Competing Interactions ◽  
Granular Films ◽  
Magnetic Correlation

AbstractMagnetoresistance and.magnetization measurements have been performed on nanogranular, cosputtered Ag100-xFex films (x= 10 to 30) in the 4 K – 300 K temperature interval. The analysis reveals that the films with x ≤ 14 are interacting superparamagnets, characterized by a magnetic correlation length of the order of the electronic mean free path λ. Films with x ≥ 26 behave as concentrated magnets with strong competing interactions among magnetic moments (frustrated ferromagnets) and magnetic correlation length much larger than λ.

Neutron depolarization study on the magnetic correlation length of nickel ferrite with different packing densities

2009 ◽  
Vol 404 (17) ◽  
pp. 2565-2567 ◽  
Author(s):  
Chih-Hao Lee ◽  
Hsin-Ho Chang ◽  
Hui-Chia Su ◽  
Yu-Han Wu ◽  
Chih-Wei Hu ◽  
...  
Keyword(s):  
Correlation Length ◽  
Nickel Ferrite ◽  
Magnetic Correlation ◽  
Neutron Depolarization ◽  
Packing Densities

Magnetic correlation length for undoped and lightly dopedLa2CuO4−y

1995 ◽  
Vol 51 (10) ◽  
pp. 6754-6757
Author(s):  
Ravi P. Singh ◽  
M. Singh
Keyword(s):  
Correlation Length ◽  
Magnetic Correlation

Turbulence-driven magnetic reconnection and the magnetic correlation length: Observations from Magnetospheric Multiscale in Earth's magnetosheath

2022 ◽  
Vol 29 (1) ◽  
pp. 012302
Author(s):  
J. E. Stawarz ◽  
J. P. Eastwood ◽  
T. D. Phan ◽  
I. L. Gingell ◽  
P. S. Pyakurel ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Correlation Length ◽  
Magnetic Correlation ◽  
Magnetospheric Multiscale

scholarly journals Spin Dynamics and Magnetic Correlation Length in Two-Dimensional Quantum Heisenberg Antiferromagnets

2000 ◽  
Vol 84 (2) ◽  
pp. 366-369 ◽  
Author(s):  
P. Carretta ◽  
T. Ciabattoni ◽  
A. Cuccoli ◽  
E. Mognaschi ◽  
A. Rigamonti ◽  
...  
Keyword(s):  
Correlation Length ◽  
Spin Dynamics ◽  
Two Dimensional ◽  
Magnetic Correlation ◽  
Heisenberg Antiferromagnets

Spin Fluctuations in Pressure-Induced Paramagnetic State of YMn2 — Comparison with High-Tc Cuprates —

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3345-3348
Author(s):  
G. -G. Zheng ◽  
K. Nishikido ◽  
Y. Kitaoka ◽  
K. Asayama ◽  
R. Hauser
Keyword(s):  
Correlation Length ◽  
Paramagnetic State ◽  
Spin Fluctuations ◽  
High Tc ◽  
Magnetic Correlation ◽  
High Tc Cuprates

From our NMR measurements, we compare the spin fluctuations spectrum in high-T c cuprates and the pressure-induced paramagnetic state of YMn 2. It is pointed out that the latter has a shorter magnetic correlation length and the bandwidth is smaller by one order in magnitude than the former.

scholarly journals Bottlebrush polymers in the melt and polyelectrolytes in solution share common structural features

2020 ◽  
Vol 117 (10) ◽  
pp. 5168-5175 ◽  
Author(s):  
Joel M. Sarapas ◽  
Tyler B. Martin ◽  
Alexandros Chremos ◽  
Jack F. Douglas ◽  
Kathryn L. Beers
Keyword(s):  
Neutron Scattering ◽  
Correlation Length ◽  
Salt Concentration ◽  
Polymer Concentration ◽  
Structural Features ◽  
Peak Position ◽  
Correlation Peak ◽  
Grafting Density ◽  
Scattering Measurements ◽  
Polyelectrolyte Solutions

Uncharged bottlebrush polymer melts and highly charged polyelectrolytes in solution exhibit correlation peaks in scattering measurements and simulations. Given the striking superficial similarities of these scattering features, there may be a deeper structural interrelationship in these chemically different classes of materials. Correspondingly, we constructed a library of isotopically labeled bottlebrush molecules and measured the bottlebrush correlation peak position q*=2π/ξ by neutron scattering and in simulations. We find that the correlation length scales with the backbone concentration, ξ∼cBB−0.47, in striking accord with the scaling of ξ with polymer concentration cP in semidilute polyelectrolyte solutions (ξ∼cP−1/2). The bottlebrush correlation peak broadens with decreasing grafting density, similar to increasing salt concentration in polyelectrolyte solutions. ξ also scales with sidechain length to a power in the range of 0.35–0.44, suggesting that the sidechains are relatively collapsed in comparison to the bristlelike configurations often imagined for bottlebrush polymers.

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