High-density physical random number generator using spin signals in multidomain ferromagnetic layer

Sungwoo Chun, Seung Beck Lee, Masahiko Hara, Wanjun Park, Song Ju Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A high-density random number generator (RNG) based on spin signals in a multidomain ferromagnetic layer in a magnetic tunnel junction (MTJ) is proposed and fabricated. Unlike conventional spin-based RNGs, the proposed method does not require one to control an applied current, leading to a time delay in the system. RNG demonstrations are performed at room temperature. The randomness of the bit sequences generated by the proposed RNG is verified using the FIPS 140-2 statistical test suite provided by the NIST. The test results validate the effectiveness of the proposed RNGs. Our results suggest that we can obtain high-density, ultrafast RNGs if we can achieve high integration on the chip.

Original languageEnglish
Article number251819
JournalAdvances in Condensed Matter Physics
Volume2015
DOIs
StatePublished - 2015

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random numbers
generators
statistical tests
tunnel junctions
time lag
chips
room temperature

Cite this

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title = "High-density physical random number generator using spin signals in multidomain ferromagnetic layer",
abstract = "A high-density random number generator (RNG) based on spin signals in a multidomain ferromagnetic layer in a magnetic tunnel junction (MTJ) is proposed and fabricated. Unlike conventional spin-based RNGs, the proposed method does not require one to control an applied current, leading to a time delay in the system. RNG demonstrations are performed at room temperature. The randomness of the bit sequences generated by the proposed RNG is verified using the FIPS 140-2 statistical test suite provided by the NIST. The test results validate the effectiveness of the proposed RNGs. Our results suggest that we can obtain high-density, ultrafast RNGs if we can achieve high integration on the chip.",
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High-density physical random number generator using spin signals in multidomain ferromagnetic layer. / Chun, Sungwoo; Lee, Seung Beck; Hara, Masahiko; Park, Wanjun; Kim, Song Ju.

In: Advances in Condensed Matter Physics, Vol. 2015, 251819, 2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - High-density physical random number generator using spin signals in multidomain ferromagnetic layer

AU - Chun, Sungwoo

AU - Lee, Seung Beck

AU - Hara, Masahiko

AU - Park, Wanjun

AU - Kim, Song Ju

PY - 2015

Y1 - 2015

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AB - A high-density random number generator (RNG) based on spin signals in a multidomain ferromagnetic layer in a magnetic tunnel junction (MTJ) is proposed and fabricated. Unlike conventional spin-based RNGs, the proposed method does not require one to control an applied current, leading to a time delay in the system. RNG demonstrations are performed at room temperature. The randomness of the bit sequences generated by the proposed RNG is verified using the FIPS 140-2 statistical test suite provided by the NIST. The test results validate the effectiveness of the proposed RNGs. Our results suggest that we can obtain high-density, ultrafast RNGs if we can achieve high integration on the chip.

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