Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Amin, Vivek P."'
Autor:
Klause, Robin, Xiao, Yuxuan, Gibbons, Jonathan, Amin, Vivek P., Belashchenko, Kirill D., Go, Dongwook, Fullerton, Eric, Hoffmann, Axel
The topological semimetal CrPt$_3$ has potential for generating unconventional spin torques due to its ferrimagnetic ordering, topological band structure, and high anomalous Hall effect. CrPt$_3$ exhibits ferrimagnetic behavior only in its chemically
Externí odkaz:
http://arxiv.org/abs/2407.06445
Autor:
Kubler, Daniel, Smith, David A., Nguyen, Tommy, Ramos-Diaz, Fernando, Emori, Satoru, Amin, Vivek P.
Spin torque oscillators are spintronic devices that generate a periodic output signal from a non-periodic input, making them promising candidates for applications like microwave communications and neuromorphic computing. However, traditional spin tor
Externí odkaz:
http://arxiv.org/abs/2407.00895
Autor:
Gupta, Pushpendra, Park, In Jun, Swain, Anupama, Mishra, Abhisek, Amin, Vivek P., Bedanta, Subhankar
The efficient generation of spin currents and spin torques via spin-orbit coupling is an important goal of spintronics research. One crucial metric for spin current generation is the spin Hall angle, which is the ratio of the spin Hall current to the
Externí odkaz:
http://arxiv.org/abs/2310.06967
Autor:
Lim, Youngmin, Nepal, Bhuwan, Smith, David A., Wu, Shuang, Srivastava, Abhishek, Nakarmi, Prabandha, Mewes, Claudia, Jiang, Zijian, Gupta, Adbhut, Viehland, Dwight D., Klewe, Christoph, Shafer, Padraic, Park, In Jun, Mabe, Timothy, Amin, Vivek P., Heremans, Jean J., Mewes, Tim, Emori, Satoru
Publikováno v:
APL Mater. 11, 101121 (2023)
An electrically conductive metal typically transmits or absorbs a spin current. Here, we report on evidence that interfacing two metal thin films can suppress spin transmission and absorption. We examine spin pumping in ferromagnet/spacer/ferromagnet
Externí odkaz:
http://arxiv.org/abs/2305.01853
Autor:
Gibbons, Jonathan, Dohi, Takaaki, Amin, Vivek P., Xue, Fei, Ren, Haowen, Xu, Jun-Wen, Arava, Hanu, Shim, Soho, Saglam, Hilal, Liu, Yuzi, Pearson, John E., Mason, Nadya, Petford-Long, Amanda K., Haney, Paul M., Stiles, Mark D., Fullerton, Eric E., Kent, Andrew D., Fukami, Shunsuke, Hoffmann, Axel
Spin torque is a promising tool for driving magnetization dynamics for novel computing technologies. These torques can be easily produced by spin-orbit effects, but for most conventional spin source materials, a high degree of crystal symmetry limits
Externí odkaz:
http://arxiv.org/abs/2109.11108
Autor:
Li, Yi, Zhao, Chenbo, Amin, Vivek P., Zhang, Zhizhi, Vogel, Michael, Xiong, Yuzan, Sklenar, Joseph, Divan, Ralu, Pearson, John, Stiles, Mark D., Zhang, Wei, Hoffmann, 1 Axel, Novosad, Valentyn
Publikováno v:
Appl. Phys. Lett. 118, 202403 (2021)
We demonstrate the electrical detection of magnon-magnon hybrid dynamics in yttrium iron garnet/permalloy (YIG/Py) thin film bilayer devices. Direct microwave current injection through the conductive Py layer excites the hybrid dynamics consisting of
Externí odkaz:
http://arxiv.org/abs/2105.11057
Spin-orbit torques offer a promising mechanism for electrically controlling magnetization dynamics in nanoscale heterostructures. While spin-orbit torques occur predominately at interfaces, the physical mechanisms underlying these torques can origina
Externí odkaz:
http://arxiv.org/abs/2008.01182
Publikováno v:
Phys. Rev. B 102, 014401 (2020)
Motivated by recent observations of unconventional out-of-plane dampinglike torque in \ch{WTe2}/Permalloy bilayer systems, we calculate the spin-orbit torque generated in two-dimensional transition metal dichalcogenide (TMD)-ferromagnet heterostructu
Externí odkaz:
http://arxiv.org/abs/2005.01109
Autor:
Li, Yi, Cao, Wei, Amin, Vivek P., Zhang, Zhizhi, Gibbons, Jonathan, Sklenar, Joseph, Pearson, John, Haney, Paul M., Stiles, Mark D., Bailey, William E., Novosad, Valentine, Hoffmann, Axel, Zhang, Wei
Publikováno v:
Phys. Rev. Lett. 124, 117202 (2020)
We experimentally identify coherent spin pumping in the magnon-magnon hybrid modes of permalloy/yttrium iron garnet (Py/YIG) bilayers. Using broadband ferromagnetic resonance, an "avoided crossing" is observed between the uniform mode of Py and the s
Externí odkaz:
http://arxiv.org/abs/1910.14470
Spin-orbit coupling enables charge currents to give rise to spin currents and vice versa, which has applications in non-volatile magnetic memories, miniature microwave oscillators, thermoelectric converters and Terahertz devices. In the past two deca
Externí odkaz:
http://arxiv.org/abs/1906.11772