scholarly journals A two-terminal spin valve device controlled by spin–orbit torques with enhanced giant magnetoresistance

2021 ◽  
Vol 119 (3) ◽  
pp. 032406
Author(s):  
Can Onur Avci ◽  
Charles-Henri Lambert ◽  
Giacomo Sala ◽  
Pietro Gambardella
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Spin Orbit

Which spin valve for next giant magnetoresistance head generation? (invited)

2000 ◽  
Vol 87 (9) ◽  
pp. 5377-5382 ◽  
Author(s):  
Satoru Araki ◽  
Masashi Sano ◽  
Shuxiang Li ◽  
Yoshihiro Tsuchiya ◽  
Olivier Redon ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve

Low resistance spin-valve-type current-perpendicular-to-plane giant magnetoresistance with Co75Fe25

2005 ◽  
Vol 97 (10) ◽  
pp. 10C507 ◽  
Author(s):  
Ken-ichi Aoshima ◽  
Nobuhiko Funabashi ◽  
Kenji Machida ◽  
Yasuyoshi Miyamoto ◽  
Kiyoshi Kuga
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Low Resistance ◽  
Current Perpendicular To Plane

Sensitivity enhancement of a giant magnetoresistance alternating spin-valve sensor for high-field applications

2012 ◽  
Vol 111 (7) ◽  
pp. 07E504 ◽  
Author(s):  
Seungha Yoon ◽  
Youngman Jang ◽  
Chunghee Nam ◽  
Seungkyo Lee ◽  
Joonhyun Kwon ◽  
...  
Keyword(s):  
High Field ◽  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Sensitivity Enhancement

Time Dependent Magnetic Switching in Spin Valve Structures

1995 ◽  
Vol 384 ◽  
Author(s):  
J. B. Restorff ◽  
M. Wun-Fogle ◽  
S. F. Cheng ◽  
K. B. Hathaway
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Time History ◽  
Time Dependent ◽  
Si Substrates ◽  
Magnetic Switching ◽  
Magnetic Aftereffect ◽  
Magnetron Sputter Deposition ◽  
History Of ◽  
Time Required

ABSTRACTWe have observed time dependent magnetic switching in spin-valve sandwich structures of Cu/Co/Cu/Fe films grown on silicon and Kapton substrates and Permalloy/Co/Cu/Co films grown on NiO or NiO/CoO coated Si substrates. The giant magnetoresistance (MR) values ranged from 1 to 3 percent at room temperature. The films were grown by DC magnetron sputter deposition. Measurements were made on the time required for the MR to stabilize to about 1 part in 104 after the applied field was incremented. This time depends almost linearly on the amplitude of the timedependent MR change with a slope (time / ΔMR) of 20 000 to 30 000 s. Some samples took as long as 70 s to stabilize. The time dependent effects may be important for devices operating in these regions of the magnetoresistance curve. In addition, measurements were made on the time history of the MR value for a period of 75 s following a step change in the field from saturation. We observed that the time dependent behavior of the MR values of both experiments produced an excellent fit to a function of the form ΔMR(t) = α + β;ln(t) where ɑ and β are constants. This time dependence was consistent with the behavior of the magnetic aftereffect.

Giant magnetoresistance in 60–150-nm-wide pseudo-spin-valve nanowires

2002 ◽  
Vol 81 (15) ◽  
pp. 2809-2811 ◽  
Author(s):  
F. J. Castaño ◽  
S. Haratani ◽  
Y. Hao ◽  
C. A. Ross ◽  
Henry I. Smith
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve

Physics of Spin-Orbit-Coupled Oxides

2021 ◽  
Author(s):  
Gang Cao ◽  
Lance DeLong
Keyword(s):  
Giant Magnetoresistance ◽  
Degrees Of Freedom ◽  
High Temperature Superconductivity ◽  
Transition Element ◽  
Spin Orbit ◽  
Transition Elements ◽  
Crystalline Electric Field ◽  
Magnetic Exchange ◽  
Spin Orbit Interactions ◽  
Strong Spin

Prior to 2010, most research on the physics and chemistry of transition metal oxides was dominated by compounds of the 3d-transition elements such as Cr, Mn, Fe, Co, Ni, and Cu. These materials exhibited novel, important phenomena that include giant magnetoresistance in manganites, as well as high-temperature superconductivity in doped La2CuO4 and related cuprates. The discovery in 1994 of an exotic superconducting state in Sr2RuO4 shifted some interest toward ruthenates. Moreover, the realization in 2008 that a novel variant of the classic Mott metal-insulator transition was at play in Sr2IrO4 provided the impetus for a burgeoning group of studies of the influence of strong spin-orbit interactions in “heavy” (4d- and 5d-) transition-element oxides. This book reviews recent experimental and theoretical evidence that the physical and structural properties of 4d- and 5d-oxides are decisively influenced by strong spin-orbit interactions that compete or collaborate with comparable Coulomb, magnetic exchange, and crystalline electric field interactions. The combined effect leads to unusual ground states and magnetic frustration that are unique to this class of materials. Novel couplings between the orbital/lattice and spin degrees of freedom, which lead to unusual types of magnetic order and other exotic phenomena, challenge current theoretical models. Of particular interest are recent investigations of iridates and ruthenates focusing on strong spin-orbit interactions that couple the lattice and spin degrees of freedom.

Two-terminal current-in-plane giant magnetoresistance devices driven by the spin–orbit torque

2021 ◽  
Vol 119 (19) ◽  
pp. 192403
Author(s):  
Yiqing Dong ◽  
Teng Xu ◽  
Wanjun Jiang
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Orbit
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