Tunneling anomalous Hall effect in a ferroelectric tunnel junction

Михаил Евгеньевич Журавлев, Artem Alexandrov, Ling Ling Tao, Evgeny Tsymbal

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

11 Цитирования (Scopus)


We report on a theoretical study on the tunneling anomalous Hall effect (TAHE) in a ferroelectric tunnel junction (FTJ), resulting from spin-orbit coupling (SOC) in the ferroelectric barrier. For ferroelectric barriers with large SOC, such as orthorhombic HfO 2 and BiInO 3, we predict sizable values of the tunneling anomalous Hall conductivity (TAHC) measurable experimentally. We demonstrate strong anisotropy in TAHC depending on the type of SOC. For the SOC with equal Rashba and Dresselhaus parameters, we predict the perfect anisotropy with zero TAHC for certain magnetization orientations. The TAHC changes sign with ferroelectric polarization reversal providing useful functionality of FTJs. Conversely, measuring the TAHC as a function of magnetization orientation offers an efficient way to quantify the type of SOC in the insulating barrier. Our results provide a valuable insight into the TAHE and open avenues for potential device applications.

Язык оригиналаанглийский
Номер статьи172405
Число страниц3
ЖурналApplied Physics Letters
Номер выпуска17
СостояниеОпубликовано - 22 окт 2018

Предметные области Scopus

  • Физика и астрономия (разное)

Ключевые слова

  • Anomalous Hall Effect
  • ferroelectric tunnel junction,

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