Role of polarizer-tilting-angle in zero-field spin-transfer nano-oscillators with perpendicular anisotropy

2015 ◽  
Vol 107 (14) ◽  
pp. 142402 ◽  
Author(s):  
C. Gonzalez-Fuentes ◽  
R. A. Gallardo ◽  
P. Landeros
Keyword(s):  
Spin Transfer ◽  
Zero Field ◽  
Perpendicular Anisotropy ◽  
Tilting Angle

The role of zero-field splitting and π-stacking interaction of different nitrogen-donor ligands on the optical properties of luminescent rhenium tricarbonyl complexes

2021 ◽  
Author(s):  
Plinio Cantero-López ◽  
Yoan Hidalgo-Rosa ◽  
Zoraida Sandoval-Olivares ◽  
Julián Santoyo-Flores ◽  
Pablo Mella ◽  
...  
Keyword(s):  
Excited States ◽  
Coordination Compounds ◽  
Donor Ligands ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Nitrogen Donor Ligands ◽  
Nitrogen Donor ◽  
Π Stacking Interaction ◽  
Rhenium Tricarbonyl

Rhenium tricarbonyl complexes are one of the most important classes of coordination compounds in inorganic chemistry. Exploring their luminescent excited states, lowest singlet (S1), and the lowest triplet (T1), is...

scholarly journals Anomalous transport due to Weyl fermions in the chiral antiferromagnets Mn3X, X = Sn, Ge

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Taishi Chen ◽  
Takahiro Tomita ◽  
Susumu Minami ◽  
Mingxuan Fu ◽  
Takashi Koretsune ◽  
...  
Keyword(s):  
Technological Innovation ◽  
Essential Role ◽  
Condensed Matter ◽  
Zero Field ◽  
Theoretical Studies ◽  
Planar Hall Effect ◽  
Topological States ◽  
Experimental And Theoretical Studies ◽  
Weyl Fermions

AbstractThe recent discoveries of strikingly large zero-field Hall and Nernst effects in antiferromagnets Mn3X (X = Sn, Ge) have brought the study of magnetic topological states to the forefront of condensed matter research and technological innovation. These effects are considered fingerprints of Weyl nodes residing near the Fermi energy, promoting Mn3X (X = Sn, Ge) as a fascinating platform to explore the elusive magnetic Weyl fermions. In this review, we provide recent updates on the insights drawn from experimental and theoretical studies of Mn3X (X = Sn, Ge) by combining previous reports with our new, comprehensive set of transport measurements of high-quality Mn3Sn and Mn3Ge single crystals. In particular, we report magnetotransport signatures specific to chiral anomalies in Mn3Ge and planar Hall effect in Mn3Sn, which have not yet been found in earlier studies. The results summarized here indicate the essential role of magnetic Weyl fermions in producing the large transverse responses in the absence of magnetization.

scholarly journals Real-space observation of ferroelectrically induced magnetic spin crystal in SrRuO3

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
S. D. Seddon ◽  
D. E. Dogaru ◽  
S. J. R. Holt ◽  
D. Rusu ◽  
J. J. P. Peters ◽  
...  
Keyword(s):  
Hall Effect ◽  
Density Functional ◽  
Hysteresis Loops ◽  
Real Space ◽  
Zero Field ◽  
Force Microscopy ◽  
Switching Regime ◽  
Conflicting Evidence ◽  
Magnetic Spin

AbstractUnusual features in the Hall Resistivity of thin film systems are frequently associated with whirling spin textures such as Skyrmions. A host of recent investigations of Hall Hysteresis loops in SrRuO3 heterostructures have provided conflicting evidence for different causes for such features. We have constructed an SrRuO3-PbTiO3 (Ferromagnetic – Ferroelectric) bilayer that exhibits features in the Hall Hysteresis previously attributed to a Topological Hall Effect, and Skyrmions. Here we show field dependent Magnetic Force Microscopy measurements throughout the key fields where the ‘THE’ presents, revealing the emergence to two periodic, chiral spin textures. The zero-field cycloidal phase, which then transforms into a ‘double-q’ incommensurate spin crystal appears over the appearance of the ‘Topological-like’ Hall effect region, and develop into a ferromagnetic switching regime as the sample reaches saturation, and the ‘Topological-like’ response diminishes. Scanning Tunnelling Electron Microscopy and Density Functional Theory is used to observe and analyse surface inversion symmetry breaking and confirm the role of an interfacial Dzyaloshinskii–Moriya interaction at the heart of the system.

Spin-transfer-torque-induced zero-field microwave oscillator using a magnetic easy cone state

2016 ◽  
Vol 16 (12) ◽  
pp. 1550-1553 ◽  
Author(s):  
Peong-Hwa Jang ◽  
Seo-Won Lee ◽  
Kyung-Jin Lee
Keyword(s):  
Spin Transfer Torque ◽  
Microwave Oscillator ◽  
Spin Transfer ◽  
Zero Field

scholarly journals Role of induced exchange bias in zero field spin–orbit torque magnetization switching in Pt/[Ni/Co]/PtMn

AIP Advances ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 085320
Author(s):  
Maxime Vergès ◽  
Vinod Kumar ◽  
Po-Hung Lin ◽  
Stéphane Mangin ◽  
Chih-Huang Lai
Keyword(s):  
Exchange Bias ◽  
Zero Field ◽  
Spin Orbit ◽  
Magnetization Switching

High-Speed Spin-Transfer Switching in GMR Nano-Pillars With Perpendicular Anisotropy

2011 ◽  
Vol 47 (6) ◽  
pp. 1599-1602 ◽  
Author(s):  
H. Tomita ◽  
T. Nozaki ◽  
T. Seki ◽  
T. Nagase ◽  
K. Nishiyama ◽  
...  
Keyword(s):  
High Speed ◽  
Spin Transfer ◽  
Perpendicular Anisotropy

Reduction of switching current by spin transfer torque effect in perpendicular anisotropy magnetoresistive devices (invited)

2011 ◽  
Vol 109 (7) ◽  
pp. 07C707 ◽  
Author(s):  
R. Sbiaa ◽  
S. Y. H. Lua ◽  
R. Law ◽  
H. Meng ◽  
R. Lye ◽  
...  
Keyword(s):  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Perpendicular Anisotropy ◽  
Switching Current
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