Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Ramaswamy, Rajagopalan"'
Autor:
Yu, Jiawei, Bang, Do, Mishra, Rahul, Ramaswamy, Rajagopalan, Oh, Jung Hyun, Park, Hyeon-Jong, Jeong, Yunboo, Van Thach, Pham, Lee, Dong-Kyu, Go, Gyungchoon, Lee, Seo-Won, Wang, Yi, Shi, Shuyuan, Qiu, Xuepeng, Awano, Hiroyuki, Lee, Kyung-Jin, Yang, Hyunsoo
Ferromagnetic spintronics has been a main focus as it offers non-volatile memory and logic applications through current-induced spin-transfer torques. Enabling wider applications of such magnetic devices requires a lower switching current for a small
Externí odkaz:
http://arxiv.org/abs/1810.10404
The ability of spintronic devices to utilize an electric current for manipulating the magnetization has resulted in large-scale developments, such as, magnetic random access memories and boosted the spintronic research area. In this regard, over the
Externí odkaz:
http://arxiv.org/abs/1808.06829
Autor:
Lee, Jong Min, Cai, Kaiming, Yang, Guang, Liu, Yang, Ramaswamy, Rajagopalan, He, Pan, Yang, Hyunsoo
Spin-orbit torques, which utilize spin currents arising from the spin-orbit coupling, offer a novel method to electrically switch the magnetization with perpendicular anisotropy. However, the necessity of an external magnetic field to achieve a deter
Externí odkaz:
http://arxiv.org/abs/1807.06287
Autor:
He, Pan, Walker, S. McKeown, Zhang, Steven S. -L., Bruno, F. Y., Bahramy, M. S., Lee, Jongmin, Ramaswamy, Rajagopalan, Cai, Kaiming, Heinonen, Olle, Vignale, Giovanni, Baumberger, F., Yang, Hyunsoo
Publikováno v:
Phys. Rev. Lett. 120, 266802 (2018)
We explore the second order bilinear magnetoelectric resistance (BMER) effect in the d-electron-based two-dimensional electron gas (2DEG) at the SrTiO3 (111) surface. We find an evidence of a spin-split band structure with the archetypal spin-momentu
Externí odkaz:
http://arxiv.org/abs/1806.01533
Spintronic devices, such as non-volatile magnetic random access memories and logic devices, have attracted considerable attention as potential candidates for future high efficient data storage and computing technology. In a heavy metal or other emerg
Externí odkaz:
http://arxiv.org/abs/1805.08496
Autor:
Shi, Shuyuan, Wang, Aizhu, Wang, Yi, Ramaswamy, Rajagopalan, Shen, Lei, Moon, Jisoo, Zhu, Dapeng, Yu, Jiawei, Oh, Seongshik, Feng, Yuanping, Yang, Hyunsoo
Publikováno v:
Phys. Rev. B 97, 041115 (2018)
We report the observation of efficient charge-to-spin conversion in the three-dimensional topological insulator (TI) Bi2Se3 and Ag bilayer by the spin-torque ferromagnetic resonance technique. The spin orbit torque ratio in the Bi2Se3/Ag/CoFeB hetero
Externí odkaz:
http://arxiv.org/abs/1801.03689
Autor:
Lee, Jong Min, Kwon, Jae Hyun, Ramaswamy, Rajagopalan, Yoon, Jung Bum, Son, Jaesung, Qiu, Xuepeng, Mishra, Rahul, Srivastava, Shalabh, Cai, Kaiming, Yang, Hyunsoo
Deterministic magnetization switching using spin-orbit torque (SOT) has recently emerged as an efficient means to electrically control the magnetic state of ultrathin magnets. The SOT switching still lacks in oscillatory switching characteristics ove
Externí odkaz:
http://arxiv.org/abs/1711.05369
Autor:
Wang, Yi, Ramaswamy, Rajagopalan, Motapothula, M., Narayanapillai, Kulothungasagaran, Zhu, Dapeng, Yu, Jiawei, Venkatesan, T., Yang, Hyunsoo
Two-dimensional electron gas (2DEG) formed at the interface between SrTiO3 (STO) and LaAlO3 (LAO) insulating layer is supposed to possess strong Rashba spin-orbit coupling. To date, the inverse Edelstein effect (i.e. spin-to-charge conversion) in the
Externí odkaz:
http://arxiv.org/abs/1711.03268
Autor:
Wang, Yi, Zhu, Dapeng, Wu, Yang, Yang, Yumeng, Yu, Jiawei, Ramaswamy, Rajagopalan, Mishra, Rahul, Shi, Shuyuan, Elyasi, Mehrdad, Teo, Kie-Leong, Wu, Yihong, Yang, Hyunsoo
Publikováno v:
Nat. Commun. 8 (2017) 1364
Topological insulators (TIs) with spin momentum locked topological surface states (TSS) are expected to exhibit a giant spin-orbit torque (SOT) in the TI/ferromagnet systems. To date, the TI SOT driven magnetization switching is solely reported in a
Externí odkaz:
http://arxiv.org/abs/1709.02159
Autor:
Ramaswamy, Rajagopalan, Wang, Yi, Elyasi, Mehrdad, Motapothula, M., Venkatesan, T., Qiu, Xuepeng, Yang, Hyunsoo
Publikováno v:
Phys. Rev. Applied 8 (2017) 024034
We have experimentally studied the effects on the spin Hall angle due to systematic addition of Pt into the light metal Cu. We perform spin torque ferromagnetic resonance measurements on Py/CuPt bilayer and find that as the Pt concentration increases
Externí odkaz:
http://arxiv.org/abs/1707.09525