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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.13 No.1
- 발행연도
- 2013.2
- 수록면
- 28 - 33 (6page)
이용수
초록· 키워드
오류제보하기
Spin-torque oscillators (STO) is a new device that can be used as a tunable microwave source in various wireless devices. Spin-transfer torque effect in magnetic multilayered nanostructure can induce precession of magnetization when bias current and external magnetic field are properly applied, and a microwave signal is generated from that precession. We proposed a semi-empirical circuit-level model of an STO in previous work. In this paper, we present a refined STO model which gives more accuracy by considering physical phenomena in the calculation of effective field. Characteristics of the STO are expressed as functions of external magnetic field and bias current in Verilog-A HDL such that they can be simulated with circuit-level simulators such as Hspice. The simulation results are in good agreement with the experimental data.
목차
Abstract
I. INTRODUCTION
II. MODEL OF STO
III. CIRCUIT LEVEL SIMULATION
IV. CONCLUSIONS
REFERENCES
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - J. Slonczewski / 1996 / Currnet-driven excitation of magnetic multilaters / Journal of Magnetism and Magnetic Materials 159 : L1 ~ L7
2. [학술지(정기간행물)] - L. Berger / 1996 / Emission of spin waves by a magnetic multilayer traversed by a current / PHYSICAL REVIEW B 54 : 9353 ~ 9358
3. [학술지(정기간행물)] - S. I. Kiselev / 2003 / Microwave oscillations of a nanomagnet driven by a spin-polarized current / Nature 425 : 380 ~ 383
4. [학술지(정기간행물)] - W. H. Rippard / 2004 / Direct-Current Induced Dynamics in Co90Fe10/Ni80Fe20 Point Contacts / PHYSICAL REVIEW LETTERS 92 : 027201 ~
5. [학술지(정기간행물)] - W. H. Rippard / 2004 / Current-Driven Microwave Dynamics in Magnetic Point Contacts as a Function of Applied Field Angle / PHYSICAL REVIEW B 70 : 100406 ~
2. [학술지(정기간행물)] - L. Berger / 1996 / Emission of spin waves by a magnetic multilayer traversed by a current / PHYSICAL REVIEW B 54 : 9353 ~ 9358
3. [학술지(정기간행물)] - S. I. Kiselev / 2003 / Microwave oscillations of a nanomagnet driven by a spin-polarized current / Nature 425 : 380 ~ 383
4. [학술지(정기간행물)] - W. H. Rippard / 2004 / Direct-Current Induced Dynamics in Co90Fe10/Ni80Fe20 Point Contacts / PHYSICAL REVIEW LETTERS 92 : 027201 ~
5. [학술지(정기간행물)] - W. H. Rippard / 2004 / Current-Driven Microwave Dynamics in Magnetic Point Contacts as a Function of Applied Field Angle / PHYSICAL REVIEW B 70 : 100406 ~
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