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The magnetic insulator yttrium iron garnet (YIG) with a ferrimagnetic transition temperature of $\sim$560 K has been widely used in microwave and spintronic devices. Anomalous features in the spin Seeback effect (SSE) voltages have been…

强关联电子 · 物理学 2017-10-04 Haoran Man , Zhong Shi , Guangyong Xu , Yadong Xu , Xi Chen , Sean Sullivan , Jianshi Zhou , Ke Xia , Jing Shi , Pengcheng Dai

We present experimental control of the magnetic anisotropy in a gadolinium iron garnet (GdIG) thin film from in-plane to perpendicular anisotropy by simply changing the sample temperature. The magnetic hysteresis loops obtained by SQUID…

材料科学 · 物理学 2017-06-27 H. Maier-Flaig , S. Geprägs , Z. Qiu , E. Saitoh , R. Gross , M. Weiler , H. Huebl , S. T. B. Goennenwein

We theoretically demonstrate that adding an easy-axis magnetic anisotropy facilitates magnon condensation in thin yttrium iron garnet (YIG) films. Dipolar interactions in a quasi-equilibrium state stabilize room-temperature magnon…

介观与纳米尺度物理 · 物理学 2024-02-13 Therese Frostad , Philipp Pirro , Alexander A. Serga , Burkard Hillebrands , Arne Brataas , Alireza Qaiumzadeh

Magnetic patterns can be controlled globally using fields or spin polarized currents. In contrast, the local control of the magnetization on the nanometer length scale remains challenging. Here, we demonstrate how magnetic domain patterns…

Using X-ray magnetic circular dichroism (XMCD) measurements, we explore the possible existence of induced magnetic moments in thin Pt films deposited onto the ferrimagnetic insulator yttrium iron garnet (Y3Fe5O12). Such a magnetic proximity…

We study the magnon spin transport in the magnetic insulator yttrium iron garnet (YIG) in a nonlocal experiment and compare the magnon spin excitation and detection for the heavy metal paramagnetic electrodes platinum (Pt|YIG|Pt) and…

介观与纳米尺度物理 · 物理学 2018-06-05 Jing Liu , Ludo J. Cornelissen , Juan Shan , Bart J. van Wees , Timo Kuschel

Magnetostatic modes of Yttrium Iron Garnet (YIG) films are investigated by ferromagnetic resonance force microscopy (FMRFM). A thin film ``probe'' magnet at the tip of a compliant cantilever introduces a local inhomogeneity in the internal…

材料科学 · 物理学 2007-05-23 R. Urban , A. Putilin , P. E. Wigen , S. -H. Liou , M. C. Cross , P. C. Hammel , M. L. Roukes

Spin-phonon interaction is an important channel for spin and energy relaxation in magnetic insulators. Understanding this interaction is critical for developing magnetic insulator-based spintronic devices. Quantifying this interaction in…

Magnetic insulators such as yttrium iron garnets (YIGs) are of paramount importance for spin-wave or magnonic devices as their ultralow damping enables ultralow power dissipation that is free of Joule heating, exotic magnon quantum state,…

Spin waves in yttrium iron garnet (YIG) nano-structures attract increasing attention from the perspective of novel magnon-based data processing applications. For short wavelengths needed in small-scale devices, the group velocity is…

We report the fabrication and optical characterization of an air-suspended photonic crystal nanobeam cavity in yttrium-iron-garnet (YIG) realized by focused-ion-beam milling. YIG's combination of low optical loss and ferrimagnetism makes it…

Quantum information science and engineering requires novel low-loss magnetic materials for magnon-based quantum-coherent operations. The search for low-loss magnetic materials, traditionally driven by applications in microwave electronics…

Yttrium Iron Garnet based tunable magnetostatic wave and spin wave devices are poised to revolutionize the fields of Magnonics, Spintronics, Microwave devices, and quantum information science. The magnetic bias required for operating and…

应用物理 · 物理学 2024-05-24 Renyuan Wang , Sudhanshu Tiwari , Yiyang Feng , Sen Dai , Sunil A. Bhave

For applications making use of magnonic spin currents damping effects, which decrease the spin conductivity, have to be minimized. We here investigate the magnon transport in an yttrium iron garnet thin film with strongly reduced effective…

介观与纳米尺度物理 · 物理学 2021-12-08 Janine Gückelhorn , Tobias Wimmer , Manuel Müller , Stephan Geprägs , Hans Hübl , Rudolf Gross , Matthias Althammer

Magnetic insulators such as yttrium iron garnet, Y3Fe5O12, with extremely low magnetic damping have opened the door for low power spin-orbitronics due to their low energy dissipation and efficient spin current generation and transmission.…

介观与纳米尺度物理 · 物理学 2016-01-20 Shaozhen Li , Wei Zhang , Junjia Ding , John E. Pearson , Valentine Novosad , Axel Hoffmann

Study of the formation and evolution of large scale, ordered structures is an enduring theme in science. The generation, evolution and control of large sized magnetic domains are intriguing and challenging tasks, given the complex nature of…

Spin current injection from sputtered yttrium iron garnet (YIG) films into an adjacent platinum layer has been investigated by means of the spin pumping and the spin Seebeck effects. Films with a thickness of 83 and 96 nanometers were…

介观与纳米尺度物理 · 物理学 2014-10-23 J. Lustikova , Y. Shiomi , Z. Qiu , T. Kikkawa , R. Iguchi , K. Uchida , E. Saitoh

A systematic study of the coupling at room temperature between ferromagnetic resonance (FMR) and a planar resonator is presented. The chosen magnetic material is a ferrimagnetic insulator (Yttrium Iron Garnet: YIG) which is positioned on…

材料科学 · 物理学 2016-11-28 Vincent Castel , Alexandre Manchec , Jamal Ben Youssef

Rare-earth iron garnets have distinctive spin-wave (SW) properties such as low magnetic damping and long SW coherence length making them ideal candidates for magnonics. Among them, thulium iron garnet (TmIG) is a ferrimagnetic insulator…

The growth and characterization of Bismuth (Bi) substituted YIG (Bi-YIG, Bi0.1Y2.9Fe5O12) thin films are reported. Pulsed laser deposited (PLD) films with thicknesses ranging from 20 to 150 nm were grown on Gadolinium Gallium Garnet…

材料科学 · 物理学 2022-09-02 Ganesh Gurjar , Vinay Sharma , Satyabrata Patnaik , Bijoy K. Kuanr