Quantum Spin-Wave Materials, Interface Effects and Functional Devices for Information Applications

Abstract

With the continuous miniaturization of electronic devices and the increasing speed of their operation, solving a series of technical issues caused by high power consumption has reached an unprecedented level of difficulty. Fortunately, magnons (the quanta of spin waves), which are the collective precession of spins in quantum magnetic materials, making it possible to replace the role of electrons in modern information applications. In the process of information transmission, nano-sized spin-wave devices do not transport any physical particles; therefore, the corresponding power consumption is extremely low. This review focuses on the emerging developments of the spin-wave materials, tunable effects, and functional devices applications. In the materials front, we summarize the magnetic properties and preparation characteristics of typical insulating single-crystalline garnet films or metallic alloy films, the development of new spin-wave material system is also introduced. Afterward, we introduce the emerging electric control of spin-wave effects originating from the interface transitions, physical or chemical, among these films including, voltage-controlled magnetic anisotropy, magneto-ionic transport, electric spin-torque, and magnon-torque. In the functional devices front, we summarize and elaborate on the low dispassion information processing devices and sensors that are realized based on spin waves.

Advances in Magnetics Roadmap on Spin-Wave Computing

“…ref. [59]) as well as enhanced spin Seebeck effect [60]) opens up further opportunities for advanced thin-film LPE technology, which is predestined for the fabrication of multicomponent epitaxial films.…”

Electric field control of magnons in magnetic thin films: ab initio predictions for 2D metallic heterostructures

“…Such a procedure is much simpler than dealing with complex matrices of Eqs. ( 5) and (6), which need to be dealt with not only for each q but also for every trial energy ω and which are also much bigger, depending on the sampling in r and r .…”

“…where the electronic Green's function G ↑(↓) (k, s, E) is the Lehmann resummation of Kohn-Sham eigenstates and eigenvalues already appearing in Eq. (6). In practice we adopt the KKR construction to directly obtain these Green functions [51], calculate the Heisenberg exchange parameters J ij [29] and solve the secular equation problem of Eq.…”

“…Magnonics, i.e. the generation, control and detection of collective spin excitations (or magnons) is been considered for possible information storage and processing applications, due to promise for higher data density and its more energy-efficient elaboration [1][2][3][4][5][6]. This area is rapidly advancing, from first proposals of memory devices, to more recent examples concerning the implementation of logical operations [7][8][9].…”

Microstructure Evolution and Shear Property of Cu-In Transient Liquid Phase Sintering Joints

“…With the miniaturization and integration of power electronics, the increasing operating temperature makes the package module withstand high temperature (Teo and Sun, 2008;Yoon et al, 2013;Chen et al, 2015;Yoon et al, 2019;Xu et al, 2020). Traditional high lead solders are not suitable and needed to be replaced.…”