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Two-dimensional (2D) materials provide a platform for developing novel spintronic devices and circuits for low-power electronics. In particular, inducing magnetism and injecting spins in graphene have promised the emerging field of graphene…

Electrostatic gating provides a way to obtain key functionalities in modern electronic devices and to qualitatively alter materials properties. While electrostatic description of such gating gives guidance for related doping effects,…

材料科学 · 物理学 2016-06-08 Predrag Lazic , Kirill D. Belashchenko , Igor Zutic

Spintronics aims to exploit the spin degree of freedom in solid state devices for data storage and information processing technologies. The fundamental spintronic device concepts such as creation, manipulation and detection of spin…

介观与纳米尺度物理 · 物理学 2016-10-21 André Dankert , Saroj P. Dash

Electrical spin injection from ferromagnetic metals into graphene is hindered by the impedance mismatch between the two materials. This problem can be reduced by the introduction of a thin tunnel barrier at the interface. We present room…

介观与纳米尺度物理 · 物理学 2009-11-28 C. Józsa , M. Popinciuc , N. Tombros , H. T. Jonkman , B. J. van Wees

Hybrids of graphene and two dimensional transition metal dichalcogenides (TMDC) have the potential to bring graphene spintronics to the next level. As we show here by performing first-principles calculations of graphene on monolayer…

介观与纳米尺度物理 · 物理学 2015-10-14 Martin Gmitra , Jaroslav Fabian

We present spin transport studies on bi- and trilayer graphene non-local spin-valves which have been fabricated by a bottom-up fabrication method. By this technique, spin injection electrodes are first deposited onto Si$^{++}$/SiO$_2$…

Spintronics---the all-electrical control of the electron spin for quantum or classical information storage and processing---is one of the most promising applications of the two-dimensional material graphene. Although pristine graphene has…

介观与纳米尺度物理 · 物理学 2018-10-24 Chunli Huang , Y. D. Chong , Miguel. A. Cazalilla

Two-dimensional materials offer new opportunities for both fundamental science and technological applications, by exploiting the electron spin. While graphene is very promising for spin communication due to its extraordinary electron…

介观与纳米尺度物理 · 物理学 2017-06-08 Ahmet Avsar , Jun You Tan , Marcin Kurpas , Martin Gmitra , Kenji Watanabe , Takashi Taniguchi , Jaroslav Fabian , Barbaros Ozyilmaz

The introduction and control of ferromagnetism in graphene opens up a range of new directions for fundamental and applied studies. Several approaches have been pursued so far, such as introduction of defects, functionalization with adatoms,…

介观与纳米尺度物理 · 物理学 2016-11-04 J. C. Leutenantsmeyer , A. A. Kaverzin , M. Wojtaszek , B. J. van Wees

Superconductivity can be induced in a normal material via the leakage of superconducting pairs of charge carriers from an adjacent superconductor. This so-called proximity effect is markedly influenced by graphene unique electronic…

In our previous work, we synthesized a metal/2D material heterointerface consisting of $L1_0$-ordered iron-palladium (FePd) and graphene (Gr) called FePd(001)/Gr. This system has been explored by both experimental measurements and…

材料科学 · 物理学 2024-01-02 Hayato Adachi , Ryuusuke Endo , Hikari Shinya , Hiroshi Naganuma , Tomoya Ono , Mitsuharu Uemoto

A promising approach to attain long-distance coherent spin propagation is accessing topological spin-polarized edge states in graphene. Achieving this without external magnetic fields necessitates engineering graphene band structure,…

We present a new fabrication method of graphene spin-valve devices which yields enhanced spin and charge transport properties by improving both the electrode-to-graphene and graphene-to-substrate interface. First, we prepare Co/MgO spin…

We report that the {\pi}-electrons of graphene can be spin-polarized to create a phase with a significant spin-orbit gap at the Dirac point (DP) using a graphene-interfaced topological insulator hybrid material. We have grown epitaxial…

The integration of the spin degree of freedom in charge-based electronic devices has revolutionised both sensing and memory capability in microelectronics. Further development in spintronic devices requires electrical manipulation of spin…

介观与纳米尺度物理 · 物理学 2016-11-15 Wenjing Yan , Oihana Txoperena , Roger Llopis , Hanan Dery , Luis E. Hueso , Fèlix Casanova

The metal-graphene contact resistance is a technological bottleneck for the realization of viable graphene based electronics. We report a useful model to find the gate tunable components of this resistance determined by the sequential…

介观与纳米尺度物理 · 物理学 2015-08-03 Ferney A. Chaves , David Jiménez , Abhay A. Sagade , Wonjae Kim , Juha Riikonen , Harri Lipsanen , Daniel Neumaier

We present a theory of the graphene nanoslide, a fundamental device for graphene straintronics that realizes a single pseudogauge barrier. We solve the scattering problem in closed form and demonstrate that the nanoslide gives rise to a…

介观与纳米尺度物理 · 物理学 2026-05-18 Christophe De Beule , Ming-Hao Liu , Bart Partoens , Lucian Covaci

The discovery of van der Waals (vdW) magnets opened up a new paradigm for condensed matter physics and spintronic technologies. However, the operations of active spintronic devices with vdW magnets are so far limited to cryogenic…

介观与纳米尺度物理 · 物理学 2021-07-02 Bing Zhao , Roselle Ngaloy , Anamul Md. Hoque , Bogdan Karpiak , Dmitrii Khokhriakov , Saroj P. Dash

Charge carriers in the quantum Hall regime propagate via one-dimensional conducting channels that form along the edges of a two-dimensional electron gas. Controlling their transmission through a gate-tunable constriction, also called…

We immerse single layer graphene spin valves into purified water for a short duration (<1 min) and investigate the effect on spin transport. Following water immersion, we observe an enhancement in nonlocal magnetoresistance. Additionally,…

材料科学 · 物理学 2011-08-02 K. M. McCreary , Hua Wen , H. Yu , Wei Han , E. Johnston-Halperin , R. K. Kawakami