Quantum materials for spin and charge conversion

Han, Wei; Otani, Y.; Maekawa, Sadamichi

doi:10.1038/s41535-018-0100-9

Cited by 171 publications

(114 citation statements)

References 161 publications

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“…Conversely, the injection of a spin current into a Rashba system generates a net charge current (inverse Edelstein effect, IEE or spin galvanic effect) 4 . The EE and IEE can also be realized at surfaces of threedimensional topological insulators 5 , and have been predicted in other types of quantum materials 6,7 .…”

mentioning

confidence: 79%

Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

et al. 2019

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mentioning

confidence: 79%

Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

et al. 2019

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“…Ferromagnetic oxides and strongly correlated metals exhibit behaviors that are fundamentally fascinating and also technologically important. For example, the field of spintronics constitutes an active research area for physicists and engineers, and its potential for coupling with conventional electronics is highly attractive. In particular, ferromagnetic oxides that exhibit high spin polarization, such as La 1– x Sr x MnO 3 (LSMO), could provide a platform for spintronic and opto‐spintronic applications if integrated on semiconductors.…”

Section: Materials and Functional Propertiesmentioning

confidence: 99%

Epitaxial Oxides on Semiconductors: From Fundamentals to New Devices

Kumah

Ngai

Kornblum

2019

Adv Funct Materials

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Functional oxides are an untapped resource for futuristic devices and functionalities. These functionalities can range from high temperature superconductivity to multiferroicity and novel catalytic schemes. The most prominent route for transforming these ideas from a single device in the lab to practical technologies is by integration with semiconductors. Moreover, coupling oxides with semiconductors can herald new and unexpected functionalities that exist in neither of the individual materials. Therefore, oxide epitaxy on semiconductors provides a materials platform for novel device technologies. As oxides and semiconductors exhibit properties that are complementary to one another, epitaxial heterostructures comprised of the two are uniquely poised to deliver rich functionalities. This review discusses recent advancements in the growth of epitaxial oxides on semiconductors, and the electronic and physical structure of their interfaces. Leaning on these fundamentals and practicalities, the material behavior and functionality of semiconductor-oxide heterostructures is discussed, and their potential as device building blocks is highlighted. The culmination of this discussion is a review of recent advances in the development of prototype devices based on semiconductor-oxide heterostructures, in areas ranging from silicon photonics to photocatalysis. This overview is intended to stimulate ideas for new concepts of functional devices and lay the groundwork for their realization.

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“…The giant tunable Rashba spin‐orbit coupling, high mobility, and long momentum relaxation time at the oxide interfaces provide a promising combination for applications in spintronics . Using a three‐terminal device, Reyren et al first reported injection of a spin current from a ferromagnetic Co layer into the LAO/STO 2DEG through Hanle experiments.…”

Section: Magnetic Fieldmentioning

confidence: 99%

Stimulating Oxide Heterostructures: A Review on Controlling SrTiO₃‐Based Heterointerfaces with External Stimuli

Christensen

Trier

Niu

et al. 2019

Adv Materials Inter

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Oxides are an exciting class of electronic materials which share key properties with conventional semiconductors, but also bring new intrinsic functionalities that are not used in most current electronics: superconductivity, ferro-, pyro-, and piezoelectricity, ferromagnetism, and multiferrocity. Among the large number of oxides, strontium titanate (SrTiO 3 , STO) has been the center of attention in numerous studies for more than half a century. STO both serves as a popular template for epitaxial growth of oxide thin films as well as by itself exhibiting an attractive palettes of properties, including Numerous of the greatest inventions in modern society, such as solar cells, display panels, and transistors, rely on a simple concept: An external stimulus is applied to a material and the response is then utilized. Oxides often exhibit a colorful palette of responses to external stimuli due to the close coupling between lattice, spin, orbital, and charge degrees of freedom. In particular, oxide heterostructures where oxide thin films are deposited on SrTiO 3 have proven to be a fertile playground for material scientists, and a vast amount of interesting theoretical and experimental studies showcase the wide tunabilities of these heterostructures when subjected to external stimuli. Here, the authors review how the properties of SrTiO 3 -based heterostructures can be changed by external stimuli using electric fields, magnetic fields, light, stress, particle bombardment, liquids, gases, and temperature. The application of a single stimulus or several stimuli combined often leads to unexpected changes in properties which can open up for designing new devices as well as expanding the boundaries of our understanding within fundamental science. Hall of Fame Article is a research scientist at the Technical University of Denmark, Department of Energy Conversion and Storage. He received his B.Sc. (2009) and M.Sc. (2012) in nanoscience from the University of Copenhagen, followed by his Ph.D. (2017) and postdoc (2018) from the Technical University of Denmark. His work is currently focused on the physics of oxide materials and oxide devices for information technology and energy harvesting, including oxide electronics, memristors, internet of things, and thermoelectricity. Felix Trier is a postdoctoral researcher at CNRS/Thales, University Paris-Saclay. He obtained his B.Sc. (2009) and M.Sc. (2012) in nanoscience from the University of Copenhagen. Then he earned his Ph.D. degree (2016) from the Technical University of Denmark. His current research is focused on fabrication and characterization of metallic oxide heterointerface devices for the study of the spin-charge interconversion in 2D Rashba systems. His work concerns the LaAlO 3 /SrTiO 3 heterointerface 2D metal and its electrostatic tunability.Nini Pryds is a Professor and head of the research section "Functional Oxides" at the Department of Energy Conversion and Storage, Technical University of Denmark (DTU), where he is leading a group of researchers working in the field...

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Quantum materials for spin and charge conversion

Cited by 171 publications

References 161 publications

Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

Epitaxial Oxides on Semiconductors: From Fundamentals to New Devices

Stimulating Oxide Heterostructures: A Review on Controlling SrTiO₃‐Based Heterointerfaces with External Stimuli

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Quantum materials for spin and charge conversion

Cited by 171 publications

References 161 publications

Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

Epitaxial Oxides on Semiconductors: From Fundamentals to New Devices

Stimulating Oxide Heterostructures: A Review on Controlling SrTiO3‐Based Heterointerfaces with External Stimuli

Contact Info

Product

Resources

About

Stimulating Oxide Heterostructures: A Review on Controlling SrTiO₃‐Based Heterointerfaces with External Stimuli