Non-volatile electric control of spin-charge conversion in a SrTiO3 Rashba system

doi:10.1038/s41586-020-2197-9

GSTDTAP > 地球科学

DOI	10.1038/s41586-020-2197-9
	Non-volatile electric control of spin-charge conversion in a SrTiO3 Rashba system
	Collombet, Samuel 1,2; Ranisavljevic, Noemie 1,3,4; Nagano, Takashi 5,10; Varnai, Csilla 5,6; Shisode, Tarak 7; Leung, Wing 5,10; Piolot, Tristan 1; Galupa, Rafael 1,2; Borensztein, Maud 1; Servant, Nicolas 8; Fraser, Peter 5,9; Ancelin, Katia 1; Heard, Edith 1,2
	2020-03-25
发表期刊	NATURE
ISSN	0028-0836
EISSN	1476-4687
出版年	2020
卷号	580 期号:7804 页码:483-+
文章类型	Article
语种	英语
国家	France; Switzerland; Spain
英文关键词	The polarization direction of a ferroelectric-like state can be used to control the conversion of spin currents into charge currents at the surface of strontium titanate, a non-magnetic oxide. After 50 years of development, the technology of today' s electronics is approaching its physical limits, with feature sizes smaller than 10 nanometres. It is also becoming clear that the ever-increasing power consumption of information and communication systems(1) needs to be contained. These two factors require the introduction of non-traditional materials and state variables. As recently highlighted(2), the remanence associated with collective switching in ferroic systems is an appealing way to reduce power consumption. A promising approach is spintronics, which relies on ferromagnets to provide non-volatility and to generate and detect spin currents(3). However, magnetization reversal by spin transfer torques(4) is a power-consuming process. This is driving research on multiferroics to achieve low-power electric-field control of magnetization(5), but practical materials are scarce and magnetoelectric switching remains difficult to control. Here we demonstrate an alternative strategy to achieve low-power spin detection, in a non-magnetic system. We harness the electric-field-induced ferroelectric-like state of strontium titanate (SrTiO3)(6-9) to manipulate the spin-orbit properties(10) of a two-dimensional electron gas(11), and efficiently convert spin currents into positive or negative charge currents, depending on the polarization direction. This non-volatile effect opens the way to the electric-field control of spin currents and to ultralow-power spintronics, in which non-volatility would be provided by ferroelectricity rather than by ferromagnetism.
领域	地球科学 ; 气候变化 ; 资源环境
收录类别	SCI-E
WOS记录号	WOS:000528065800019
WOS关键词	GAS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/280952
专题	地球科学资源环境科学气候变化
作者单位	1.PSL Res Univ, UPMC Paris Sorbonne, Inst Curie, CNRS,UMR3215,INSERM,U934, Paris, France; 2.EMBL, Heidelberg, Germany; 3.CHU Montpellier, Dept Reprod Med Gynecol, Montpellier, France; 4.Univ Montpellier, Montpellier, France; 5.Babraham Inst, Nucl Dynam Programme, Cambridge, England; 6.Univ Birmingham, Ctr Computat Biol, Birmingham, W Midlands, England; 7.Florida State Univ, Dept Appl Math, Tallahassee, FL 32306 USA; 8.PSL Res Univ, Inst Curie, INSERM, U900,Mines ParisTech, Paris, France; 9.Florida State Univ, Dept Biol Sci, B-157, Tallahassee, FL 32306 USA; 10.Osaka Univ, Inst Prot Res, Lab Nucl Dynam, Suita, Osaka, Japan
推荐引用方式 GB/T 7714	Collombet, Samuel,Ranisavljevic, Noemie,Nagano, Takashi,et al. Non-volatile electric control of spin-charge conversion in a SrTiO3 Rashba system[J]. NATURE,2020,580(7804):483-+.
APA	Collombet, Samuel.,Ranisavljevic, Noemie.,Nagano, Takashi.,Varnai, Csilla.,Shisode, Tarak.,...&Heard, Edith.(2020).Non-volatile electric control of spin-charge conversion in a SrTiO3 Rashba system.NATURE,580(7804),483-+.
MLA	Collombet, Samuel,et al."Non-volatile electric control of spin-charge conversion in a SrTiO3 Rashba system".NATURE 580.7804(2020):483-+.