Results 71 to 80 of about 10,598 (224)

Magnetism and Nonlinear Charge Transport in NiFe2O4/γ‐Al2O3/SrTiO3 Heterostructure: Toward Spintronic Applications

Advanced Functional Materials, EarlyView.
In this report, we demonstrate that a crystalline phase of 52nm thick NiFe2O4 can be grown by RF sputtering on top of γ‐Al2O3(8nm)/SrTiO3 at a significantly low temperature (150 °C) without compromising the mobility and carrier density of the 2D electron gas at the γ‐Al2O3(8nm)/SrTiO3 interface.
Amit Chanda, Thor Hvid‐Olsen, Christina Hoegfeldt, Anshu Gupta, Alessandro Palliotto, Fardin Ghaffari‐Tabrizi, Maja A. Dunstan, Kasper S. Pedersen, Dae‐Sung Park, Damon J. Carrad, Thomas Sand Jespersen, Felix Trier   +11 more
wiley   +1 more source

Linear-response theory of spin Seebeck effect in ferromagnetic insulators

, 2011
We formulate a linear response theory of the spin Seebeck effect, i.e., a spin voltage generation from heat current flowing in a ferromagnet. Our approach focuses on the collective magnetic excitation of spins, i.e., magnons.
A. I. Akhiezer, A. I. Larkin, A. I. Larkin, F. J. Blatt, G. Mahan, Hiroto Adachi, J. Ohe, Jun-ichiro Ohe, S. Doniach, Saburo Takahashi, Sadamichi Maekawa   +10 more
core   +1 more source

Spin Seebeck effect at microwave frequencies [PDF]

Physical Review B, 2016
We experimentally study the transient voltage response of yttrium iron garnet/platinum bilayer samples subject to periodic heating up to gigahertz frequencies. We observe an intrinsic cutoff frequency of the induced thermopower voltage, which characteristically depends on the thickness of the yttrium iron garnet film.
Schreier, Michael, Kramer, Franz, Huebl, Hans, Geprägs, Stephan, Gross, Rudolf, Goennenwein, Sebastian T. B., Noack, Timo, Langner, Thomas, Serga, Alexander A., Hillebrands, Burkard, Vasyuchka, Vitaliy I.   +10 more
openaire   +2 more sources

Temperature‐Induced Nonvolatile Switching through Thermal Hysteresis in a Gd3Fe5O12/Ho3Fe5O12 Exchange‐Coupled Rare‐Earth Iron Garnet Bilayer

Advanced Functional Materials, EarlyView.
Reducing power consumption in spintronic memory remains a major challenge due to the need for high current densities. A bilayer of gadolinium and holmium iron garnets enables purely temperature‐induced, nonvolatile magnetic switching with bistable states within a ±25 K range. This approach achieves up to 66‐fold lower energy use than current spin–orbit
Junseok Kim, Phuoc Cao Van, Jong‐Ryul Jeong, Hyungyu Jin   +3 more
wiley   +1 more source

Spin Seebeck effect in a metal-single-molecule-magnet-metal junction

AIP Advances, 2018
We investigate the nonlinear regime of temperature-driven spin-related currents through a single molecular magnet (SMM), which is connected with two metal electrodes.
Pengbin Niu, Lixiang Liu, Xiaoqiang Su, Lijuan Dong, Hong-Gang Luo   +4 more
doaj   +1 more source

Heat and spin transport in a cold atomic Fermi gas

, 2012
Motivated by recent experiments measuring the spin transport in ultracold unitary atomic Fermi gases (Sommer et al., 2011; Sommer et al., 2011), we explore the theory of spin and heat transport in a three-dimensional spin-polarized atomic Fermi gas.
David A. Huse, H. Smith, Hyungwon Kim, P. M. Chaikin   +3 more
core   +1 more source

Nonreciprocal spin Seebeck effect in antiferromagnets [PDF]

Physical Review B, 2018
5 pages, 3 ...
Takashima, Rina, Shiomi, Yuki, Motome, Yukitoshi   +2 more
openaire   +2 more sources

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Origin of the light-induced spin currents in heavy metal/magnetic insulator bilayers

Nature Communications
Light-induced spin currents with the faster response is essential for the more efficient information transmission and processing. Herein, we systematically explore the effect of light illumination energy and direction on the light-induced spin currents ...
Hongru Wang, Jing Meng, Jianjun Lin, Bin Xu, Hai Ma, Yucheng Kan, Rui Chen, Lujun Huang, Ye Chen, Fangyu Yue, Chun-Gang Duan, Junhao Chu, Lin Sun   +12 more
doaj   +1 more source

Spin Current Noise of the Spin Seebeck Effect and Spin Pumping

Physical Review Letters, 2018
We theoretically investigate the fluctuation of a pure spin current induced by the spin Seebeck effect and spin pumping in a normal metal (NM)/ferromagnet (FM) bilayer system. Starting with a simple FI--NM interface model with both spin-conserving and spin-non-conserving processes, we derive general expressions of the spin current and the spin-current ...
Matsuo, M., Ohnuma, Y., Kato, T., Maekawa, S.   +3 more
openaire   +4 more sources