scholarly journals Interlayer Coupling in Magnetic/Pd Multilayers

1995 ◽  
Vol 384 ◽  
Author(s):  
Zhu-Pei Shi ◽  
Barry M. Klein
Keyword(s):  
Experimental Data ◽  
Conduction Electron ◽  
Anderson Model ◽  
Magnetic Coupling ◽  
Interlayer Coupling ◽  
Oscillation Period ◽  
Local State ◽  
Multilayered Structures ◽  
Interlayer Magnetic Coupling

ABSTRACTThe Anderson model of local-state conduction electron mixing is applied to the problem of interlayer magnetic coupling in metallic multilayered structures with palladium (Pd) spacer layers. An oscillation period of 5 spacer monolayers and the tendency towards ferromagnetic bias of the interlayer magnetic coupling that we obtain are consistent with the experimental data.

Interlayer Magnetic Coupling in Transition-Metal Multilayered Structures

1991 ◽  
Vol 231 ◽  
Author(s):  
Peter M. Levy ◽  
J.L. Fry ◽  
E.C. Ethridge
Keyword(s):  
Transition Metal ◽  
Magnetic Coupling ◽  
Interlayer Coupling ◽  
Multilayered Structures ◽  
Cr Structures ◽  
Interlayer Magnetic Coupling

AbstractRecent experiments have confirmed the main features of the interlayer coupling we calculated for Fe/Cr multilayers. We discuss the origins of these features and present new results on the interlayer coupling for Fe/Mo(100) multilayered structures. We find they share many of the features seen in Fe/Cr structures; in particular the rapid oscillations of the coupling which are suppressed by the roughness of the interfaces in sputtered superlattices.

Interlayer magnetic coupling in transition‐metal multilayered structures

1991 ◽  
Vol 69 (8) ◽  
pp. 4780-4782 ◽  
Author(s):  
J. L. Fry ◽  
E. C. Ethridge ◽  
P. M. Levy ◽  
Y. Wang
Keyword(s):  
Transition Metal ◽  
Magnetic Coupling ◽  
Multilayered Structures ◽  
Interlayer Magnetic Coupling

scholarly journals Accessing new magnetic regimes by tuning the ligand spin-orbit coupling in van der Waals magnets

2020 ◽  
Vol 6 (30) ◽  
pp. eabb9379 ◽  
Author(s):  
Thomas A. Tartaglia ◽  
Joseph N. Tang ◽  
Jose L. Lado ◽  
Faranak Bahrami ◽  
Mykola Abramchuk ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Ground States ◽  
Magnetic Coupling ◽  
Interlayer Coupling ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
New Directions ◽  
Low Dimensional ◽  
Interlayer Magnetic Coupling

Van der Waals (VdW) materials have opened new directions in the study of low dimensional magnetism. A largely unexplored arena is the intrinsic tuning of VdW magnets toward new ground states. Chromium trihalides provided the first such example with a change of interlayer magnetic coupling emerging upon exfoliation. Here, we take a different approach to engineer previously unknown ground states, not by exfoliation, but by tuning the spin-orbit coupling (SOC) of the nonmagnetic ligand atoms (Cl, Br, I). We synthesize a three-halide series, CrCl3 − x − yBrxIy, and map their magnetic properties as a function of Cl, Br, and I content. The resulting triangular phase diagrams unveil a frustrated regime near CrCl3. First-principles calculations confirm that the frustration is driven by a competition between the chromium and halide SOCs. Furthermore, we reveal a field-induced change of interlayer coupling in the bulk of CrCl3 − x − yBrxIy crystals at the same field as in the exfoliation experiments.

Interlayer magnetic coupling in Fe/Cr multilayered structures

1990 ◽  
Vol 65 (21) ◽  
pp. 2732-2735 ◽  
Author(s):  
Y. Wang ◽  
P. M. Levy ◽  
J. L. Fry
Keyword(s):  
Magnetic Coupling ◽  
Multilayered Structures ◽  
Interlayer Magnetic Coupling

scholarly journals EFFECTS OF c-AXIS HOPPING IN THE INTERLAYER TUNNELING MODEL OF HIGH-Tc LAYERED CUPRATES

1999 ◽  
Vol 13 (13) ◽  
pp. 1619-1632
Author(s):  
BIPLAB CHATTOPADHYAY ◽  
A. N. DAS
Keyword(s):  
Experimental Data ◽  
Transition Temperature ◽  
Cuprate Superconductors ◽  
Interlayer Coupling ◽  
Superconducting Gap ◽  
Tunneling Model ◽  
High Tc ◽  
Optimal Doping ◽  
Pair Tunneling ◽  
Layered Cuprates

We consider the interlayer pair-tunneling model for layered cuprates, including an effective single particle hopping along the c-axis. A phenomenological suppression of the c-axis hopping matrix element, by the pseudogap in cuprate superconductors, is incorporated. At optimal doping, quantities characteristic to the superconducting state, such as the transition temperature and the superconducting gap are calculated. Results from our calculations are consistent with the experimental observations with the noteworthy point that, the superconducting gap as a function of temperature shows excellent match to the experimental data. Predictions within the model, regarding T c variation with interlayer coupling, are natural outcomes which could be tested further.

scholarly journals Designing of a double-cylinder viscometer for high-pressure liquids

2020 ◽  
Vol 53 (7-8) ◽  
pp. 1482-1492
Author(s):  
Shuo Liu ◽  
Chenguang Xu ◽  
Tongqi Liu ◽  
Yong Cai
Keyword(s):  
Experimental Data ◽  
High Pressure ◽  
Atmospheric Pressure ◽  
Pressure Range ◽  
Magnetic Coupling ◽  
Normal Pressure ◽  
Friction Torque ◽  
Viscosity Measurement ◽  
Closed Cavity ◽  
Cylinder Viscometer

In this work, a double-cylinder viscometer is designed to measure dynamic viscosity over a pressure range from atmospheric pressure up to 150 MPa and a temperature range of 278.15–333.15 K. A high-pressure closed cavity is designed innovatively and the magnetic coupling is adopted to transfer the torque to reduce the friction; the inner cylinder with ruby bearing is designed to reduce the friction torque, thus the accuracy of the viscosity measurement is improved. The experiment of measuring the standard viscosity liquid (N10 and N35) under normal pressure and measuring the viscosity of methylbenzene under the pressure of 0.1–150 MPa were carried out, and considering all the experimental data, the uncertainty of the viscosity measurements is approximately ±3%.

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