scholarly journals Температурная зависимость напряжения, вызванного спиновым током в гетероструктуре манганит/иридат

2021 ◽  
Vol 63 (9) ◽  
pp. 1321
Author(s):  
Т.А. Шайхулов ◽  
К.Л. Станкевич ◽  
К.И. Константинян ◽  
В.В. Демидов ◽  
Г.А. Овсянников

The temperature dependence of the voltage induced by the spin current was studied in an epitaxial thin-film La0.7Sr0.3MnO3 / SrIrO3 heterostructure deposited on a single-crystal NdGaO3 substrate. The spin current was generated by microwave pumping under conditions of ferromagnetic resonance in the La0.7Sr0.3MnO3 ferromagnetic layer and was detected in the SrIrO3 layer due to inverse spin Hall effect. A significant increase of half-width of the spin current spectrum along with the rise of amplitude of the spin current upon cooling from room temperature (300 K) to 135 K were observed.

2014 ◽  
Vol 105 (7) ◽  
pp. 072410 ◽  
Author(s):  
Xi Shen ◽  
Akira Chikamatsu ◽  
Kei Shigematsu ◽  
Yasushi Hirose ◽  
Tomoteru Fukumura ◽  
...  

2018 ◽  
Vol 185 ◽  
pp. 02007
Author(s):  
Timur A. Shcaihulov ◽  
Victor V. Demidov ◽  
Igor V. Borisenko ◽  
Gennady A. Ovsyannikov

The temperature dependence of the spin-pumping effect on the Gilbert damping in a bilayer based on epitaxial manganite film grown on neodymium galate substrate was investigated by measuring of the linewidth of the ferromagnetic resonance spectrum (FMR). Ferromagnetic resonance in thin ferromagnetic manganite La0.7Sr0.3MnO3 (LSMO) films is used to produce a spin current at the interface between a metallic and a ferromagnetic layer. Pt/LSMO/NGO, Au/LSMO/NGO and LSMO/NGO heterostrucutres were measured. An increase of the linewidth in FMR spectrum at the temperature lower liquid nitrogen temperature (77K) is observed .


Author(s):  
Carlos Bartual-Murgui ◽  
Víctor Rubio-Giménez ◽  
Manuel Meneses-Sánchez ◽  
Francisco Javier Valverde-Muñoz ◽  
Sergio Tatay ◽  
...  

2000 ◽  
Vol 216 (1-4) ◽  
pp. 245-248
Author(s):  
N.A Vlasenko ◽  
Ya.F Kononets ◽  
Yu.V Kopytko ◽  
E Soininen ◽  
S.-S Sun

2012 ◽  
Vol 508 ◽  
pp. 266-270 ◽  
Author(s):  
K. Harii ◽  
Z. Qiu ◽  
T. Iwashita ◽  
Y. Kajiwara ◽  
K. Uchida ◽  
...  

A Spin Current Generated by Spin Pumping in a Ferromagnetic/Nonmagnetic/Spin-Sink Trilayer Film Is Calculated Based on the Spin Pumping Theory and the Standard Spin Diffusion Equation. By Attaching the Spin-Sink Layer, the Injected Spin Current Is Drastically Enhanced when the Interlayer Thickness Is Shorter than the Spin Diffusion Length of the Interlayer. We Also Provided the Formula of the Charge Current which Is Induced from the Pumped Spin Current via the Inverse Spin-Hall Effect.


1970 ◽  
Vol 14 ◽  
pp. 433-440
Author(s):  
W. S. McCain ◽  
D. L. Albright ◽  
W. O. J. Boo

AbstractLattice constants were measured as a function of temperature by single crystal diffracrometry in the temperature range which includes the Néel temperature of VF2(TN= 7°K). The lattice constants of VF2(D4h14=P42m n m) were measured from room temperature down to 4.2°K. In this range rhe tetragonal c-axis contracts 0.58% from 3.2359 Å (RT) to 3.2170 Å (4.2°K). On the other hand, the a-axes show a net expansion of 0.18% from 4.8023 Å (RT) to 4.8110 Å at 4.2°K. The temperature dependence of the lattice constants can be correlated with anisotropy of exchange forces. Vanadium Ions occupy the center and corner positions of the unit cell. Strong magnetic interactions are directed parallel to the c-axis >001< with considerably weaker interactions parallel to the body diagonals >111< The relative strengths of the two exchange integrals are J >001< = 50 J >111<. As a consequence the magnetic ordering is one-dîmensional along the c-axis and the associated distortions arise from the strong magnetic interactions along this axis.


2017 ◽  
Vol 95 (21) ◽  
Author(s):  
J. B. S. Mendes ◽  
S. L. A. Mello ◽  
O. Alves Santos ◽  
R. O. Cunha ◽  
R. L. Rodríguez-Suárez ◽  
...  

2014 ◽  
Vol 89 (23) ◽  
Author(s):  
Ayaka Tsukahara ◽  
Yuichiro Ando ◽  
Yuta Kitamura ◽  
Hiroyuki Emoto ◽  
Eiji Shikoh ◽  
...  

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