Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Byong‐Guk Park"'
Publikováno v:
npj Spintronics, Vol 2, Iss 1, Pp 1-5 (2024)
Abstract Spin-orbit torque (SOT), arising from spin-orbit coupling-induced spin currents, provides efficient control of magnetization. SOT characterization involving harmonic Hall resistances is typically done in low-current regimes, distinct from hi
Externí odkaz:
https://doaj.org/article/c73d8a3885b245d18c98fe1c860ddab4
Autor:
Min-Gu Kang, In-Kook Hwang, Hee-Chang Kyung, Jaimin Kang, Donghyeon Han, Soogil Lee, Junyoung Kwon, Kyung-Jin Lee, Jihyeon Yeom, Byong-Guk Park
Publikováno v:
APL Materials, Vol 12, Iss 8, Pp 081118-081118-8 (2024)
Chirality-induced spin selectivity (CISS) allows for the generation of spin currents without the need for ferromagnets or external magnetic fields, enabling innovative spintronic device designs. One example is a chiral spin valve composed of ferromag
Externí odkaz:
https://doaj.org/article/a50e707d277b43ce8759c1ed0e74a547
Publikováno v:
Advanced Electronic Materials, Vol 10, Iss 8, Pp n/a-n/a (2024)
Abstract Neuromorphic computing offers energy‐efficient computations for large‐scale data processing compared to conventional von Neumann computing. The artificial synapse, a key element for learning and memory operations in neuromorphic computin
Externí odkaz:
https://doaj.org/article/de0733e844e34f169d6baf3548fb615a
Autor:
Qu Yang, Donghyeon Han, Shishun Zhao, Jaimin Kang, Fei Wang, Sung-Chul Lee, Jiayu Lei, Kyung-Jin Lee, Byong-Guk Park, Hyunsoo Yang
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-6 (2024)
Abstract Current-induced spin torques enable the electrical control of the magnetization with low energy consumption. Conventional magnetic random access memory (MRAM) devices rely on spin-transfer torque (STT), this however limits MRAM applications
Externí odkaz:
https://doaj.org/article/0385241fe91444df8dd84a6afa44ca35
Autor:
Jeong-Mok Kim, Seok-Jong Kim, Min-Gu Kang, Jong-Guk Choi, Soogil Lee, Jaehyeon Park, Cao Van Phuoc, Kyoung-Whan Kim, Kab-Jin Kim, Jong-Ryul Jeong, Kyung-Jin Lee, Byong-Guk Park
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-6 (2023)
Abstract Spin Seebeck effect (SSE) refers to the generation of an electric voltage transverse to a temperature gradient via a magnon current. SSE offers the potential for efficient thermoelectric devices because the transverse geometry of SSE enables
Externí odkaz:
https://doaj.org/article/98cdf101d4494775a7d1e0f05678da92
Autor:
Ji-Ho Park, Won Tae Kim, Woonjae Won, Jun-Ho Kang, Soogil Lee, Byong-Guk Park, Byoung S. Ham, Younghun Jo, Fabian Rotermund, Kab-Jin Kim
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
In a ferrimagnet, there are two magnetic sublattices coupled antiferromagnetically. The dynamics of the two magnetic sublattices isn’t well understood, as the magnetic moments for each reside at different energy levels. Here, Park et al show that t
Externí odkaz:
https://doaj.org/article/b61e3529496d41bca05d665a3ee8ce69
Autor:
Jong-Guk Choi, Jaehyeon Park, Min-Gu Kang, Doyoon Kim, Jae-Sung Rieh, Kyung-Jin Lee, Kab-Jin Kim, Byong-Guk Park
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Spin-hall nano-oscillators are a variation on spin-torque nano-oscillators, where the spin-Hall effect is used to drive oscillations, however past examples have had limited frequency tunability. Here, Choi et al demonstrate spin-hall oscillators with
Externí odkaz:
https://doaj.org/article/cc482bd34818429ebe9a63c23f1414aa
Autor:
Daekyu Koh, Jaimin Kang, Taehwan Kim, Jisung Lee, Sujung Noh, Hansaem Lee, JoonHyun Kwon, Soogil Lee, Jongsun Park, Byong‐Guk Park
Publikováno v:
Advanced Electronic Materials, Vol 9, Iss 4, Pp n/a-n/a (2023)
Abstract Physical unclonable functions (PUFs), which exploit uncontrollable and unpredictable randomness of materials or devices, have been investigated as a hardware‐based security primitive owing to their robustness against adversarial attacks. S
Externí odkaz:
https://doaj.org/article/545f9b02d56d41a58ef9420a0e10a667
Autor:
Geunwoo Kim, Soogil Lee, Sanghwa Lee, Byonggwon Song, Byung-Kyu Lee, Duhyun Lee, Jin Seo Lee, Min Hyeok Lee, Young Keun Kim, Byong-Guk Park
Publikováno v:
Nanomaterials, Vol 13, Iss 18, p 2591 (2023)
This study investigates the effects of annealing on the tunnel magnetoresistance (TMR) ratio in CoFeB/MgO/CoFeB-based magnetic tunnel junctions (MTJs) with different capping layers and correlates them with microstructural changes. It is found that th
Externí odkaz:
https://doaj.org/article/2a0680d9a6aa4cb1aded18b08b6c0b72
Autor:
Min-Gu Kang, Jong-Guk Choi, Jimin Jeong, Jae Yeol Park, Hyeon-Jong Park, Taehwan Kim, Taekhyeon Lee, Kab-Jin Kim, Kyoung-Whan Kim, Jung Hyun Oh, Duc Duong Viet, Jong-Ryul Jeong, Jong Min Yuk, Jongsun Park, Kyung-Jin Lee, Byong-Guk Park
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
A major challenge for spin based electronics is the electrical control of magnetization. Here, Kang et al demonstrate how electric field control of the Rashba effect in a Pt/Co/AlOx can enable control of the spin-orbit torque and allow for field free
Externí odkaz:
https://doaj.org/article/fb43d5dd326f43da96519d70e93fedbc