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The field of oxide spintronics can strongly benefit from the establishment of robust ferromagnetic insulators with near room-temperature Curie temperature. Here we investigate the structural, electronic, and magnetic properties of…

We report giant magnetoresistance up to 150 percent at low bias current and low temperature as well as room temperature magnetoresistance in polymeric spin-valves having the structure LSMO/conjugated polymer/Co. The conjugated polymers,…

材料科学 · 物理学 2016-08-31 Sayani Majumdar , Himadri S. Majumdar , Reino Laiho , Ronald Osterbacka

Complex magneto structural behaviour of rare rich intermetallic Tb$_3$Co is reported in this study. Below the 84K (T$_N$), it undergoes a first order magnetic transition 72K confirmed from specific heat and magnetization measurements.…

材料科学 · 物理学 2019-08-23 Srikanta Goswami , P. D. Babu , R. Rawat

We have performed a detailed study of conductance anisotropy and magnetoresistance (MR) of La2-xSrxCuO4 (LSCO) thin films (0.10 < x < 0.25). These two observables are promising for the detection of stripes. Subtle features of the…

强关联电子 · 物理学 2011-06-01 M. van Zalk , A. Brinkman , H. Hilgenkamp

The LAO/STO interface hosts a two-dimensional electron system that is unusually sensitive to the application of an in-plane magnetic field. Low-temperature experiments have revealed a giant negative magnetoresistance (dropping by 70\%),…

介观与纳米尺度物理 · 物理学 2015-07-06 M. Diez , A. M. R. V. L. Monteiro , G. Mattoni , E. Cobanera , T. Hyart , E. Mulazimoglu , N. Bovenzi , C. W. J. Beenakker , A. D. Caviglia

Recent measurements of the magnetoresistance (MR) of amorphous superconducting thin films in tilted magnetic fields have displayed several surprising experimental details, in particular a strong dependence of the MR on field angle at low…

超导电性 · 物理学 2015-07-22 Elkana Porat , Yigal Meir

The magnetization as a function of magnetic field showed hysteretic behavior at room temperature. According to the temperature dependence of the magnetization, the Curie temperature $(T_{C})$ is higher than 350 K. Ferromagnetic Mn-doped tin…

材料科学 · 物理学 2017-09-19 Sushant Gupta , V. Ganesan , N. P. Lalla , Indra Sulania , B. Das

Magnetic skyrmions are topologically protected whirling spin textures that can be stabilized in magnetic materials in which a chiral interaction is present. Their limited size together with their robustness against the external…

介观与纳米尺度物理 · 物理学 2018-05-09 Davide Maccariello , William Legrand , Nicolas Reyren , Karin Garcia , Karim Bouzehouane , Sophie Collin , Vincent Cros , Albert Fert

Highly oriented polycrystalline SSMO thin films deposited on single crystal substrates by ultrasonic nebulized spray pyrolysis have been studied. The film on LAO is under compressive strain while LSAT and STO are under tensile strain. The…

We present results on experimental studies of spin current, measured under spin pumping at ferromag-netic resonance in wide frequency band 2-20 GHz for SrIrO3/La0.7Sr0.3MnO3 heterostructures fabricated by RF magnetron sputtering at high…

Through a thorough magneto-transport study of antiferromagnetic topological insulator MnBi2Te4 (MBT) thick films, a positive linear magnetoresistance (LMR) with a two-dimensional (2D) character is found in high perpendicular magnetic fields…

材料科学 · 物理学 2021-01-04 X. Lei , L. Zhou , Z. Y. Hao , X. Z. Ma , C. Ma , Y. Q. Wang , P. B. Chen , B. C. Ye , L. Wang , F. Ye , J. N. Wang , J. W. Mei , H. T. He

The magnetic properties of La0.7Ca0.3MnO3 (LCMO) manganite thin films were studied with magnetometry and ferromagnetic resonance as a function of film thickness. They maintain the colossal magnetoresistance behavior with a pronounced…

We investigated the nature of transport and magnetic properties in SrIr0.5Ru0.5O3, (SIRO) which has characteristics intermediate between a correlated non-Fermi liquid state and an itinerant Fermi liquid state, by growing perovskite thin…

强关联电子 · 物理学 2015-09-11 Abhijit Biswas , Yong Woo Lee , Sang Woo Kim , Yoon Hee Jeong

Non-volatile memory and computing technology rely on efficient read and write of ultra-tiny information carriers that do not wear out. Magnetic skyrmions are emerging as a potential carrier since they are topologically robust nanoscale spin…

We present the observation of strain induced sign reversal of anisotropic magnetoresistance (AMR) in LCMO (LCMO) ultrathin films (thickness 4 nm) deposited on STO (001) substrate (STO). We have also observed unusually large AMR in LCMO/STO…

介观与纳米尺度物理 · 物理学 2015-06-23 Himanshu Sharma , A. Tulapurkar , C. V. Tomy

We report the discovery of mesoscale regions with distinctive magnetic properties in epitaxial La$_{1-x}$Sr$_{x}$MnO$_{3}$ films which exhibit tunneling-like magnetoresistance across grain boundaries. By using temperature-dependent magnetic…

强关联电子 · 物理学 2009-10-31 Yeong-Ah Soh , G. Aeppli , N. D. Mathur , M. G. Blamire

Spin Hall magnetoresistance (SMR) and magnon excitation magnetoresistance (MMR) that all generate via the spin Hall effect and inverse spin Hall effect in a nonmagnetic material are always related to each other. However, the influence of…

材料科学 · 物理学 2020-03-02 Q. B. Liu , K. K. Meng , S. Q. Zheng , Y. C. Wu , J. Miao , X. G. Xu , Y. Jiang

The 5$d$ based SrIrO$_3$ represents prototype example of nonmagnetic correlated metal which mainly originates from a combined effect of spin-orbit coupling, lattice dimensionality and crystal structure. Therefore, tuning of these parameters…

强关联电子 · 物理学 2021-02-24 Rachna Chaurasia , K. Asokan , Kranti Kumar , A. K. Pramanik

We formulate a theory of the AC spin Hall magnetoresistance (SMR) in a bilayer system consisting of a magnetic insulator such as yttrium iron garnet (YIG) and a heavy metal such as platinum (Pt). We derive expressions for the DC voltage…

介观与纳米尺度物理 · 物理学 2014-09-09 Takahiro Chiba , Gerrit E. W. Bauer , Saburo Takahashi

The in-plane magnetoresistance (MR) in atomically smooth La_{2-x}Sr_{x}CuO_{4} thin films grown by molecular-beam-epitaxy was measured in magnetic fields B up to 9 T over a wide range of temperatures T. The films, with x=0.03 and x=0.05,…

强关联电子 · 物理学 2015-06-03 Xiaoyan Shi , Dragana Popović , C. Panagopoulos , G. Logvenov , A. T. Bollinger , I. Božović