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We have investigated the effect of electric field control on the magnetization and the transport properties in La0.7Ca0.3MnO3 (LCMO) ultrathin film (~10 nm) by using it as the semiconductor channel material of a prototypical field effect…

Mesoscale and Nanoscale Physics · Physics 2015-07-22 Himanshu Sharma , A. Tulapurkar , C. V. Tomy

Despite a considerable effort aiming at elucidating the nature of ferromagnetism in ZnO-based magnetic semiconductor, its origin still remains debatable. Although the observation of above room temperature ferromagnetism has been reported…

Materials Science · Physics 2009-05-01 M. Tay , Y. H. Wu , G. C. Han , Y. B. Chen , X. P. Pan , S. J. Wang , P. Yang , Y. P. Feng

A detailed study of the magnetic and transport properties of Si1-xMnx (X = 0.35) films is presented. We observe the anomalous Hall effect (AHE) in these films up to room temperature. The results of the magnetic measurements and the AHE data…

Resistivity under magnetic field, thermopower and Hall coefficient are systematically studied for [Bi$_2$Ba$_{1.3}$K$_{0.6}$Co$_{0.1}$]$^{RS}$[CoO$_2$]$_{1.97}$ single crystal. In-plane resistivity ($\rho_{ab}$(T)) shows metallic behavior…

Strongly Correlated Electrons · Physics 2015-05-13 X. G. Luo , H. Chen , G. Y. Wang , G. Wu , T. Wu , L. Zhao , X. H. Chen

Extensive studies of electron transport in Dirac materials have shown positive magneto-resistance (MR) and positive magneto-thermopower (MTP) in a magnetic field perpendicular to the excitation current or thermal gradient. In contrast,…

Transport properties of an epitaxial film of La_0.7Sr_0.3MnO_3 (LSMO), deposited epitaxially on a LaAlO_3 bi-crystal substrate having a misorientation angle of 9.2 deg., have been studied. The film was patterned into a meander containing…

Materials Science · Physics 2016-08-31 R. Mathieu , P. Svedlindh , R. Chakalov , Z. G. Ivanov

We report on an anomalous magnetization observed with temperature for low magnetic fields applied in the plane of a film formed by a thin layer of Fe-Rh deposited on a thin foil of ordered Fe$_3$Pt. The anomalous effect resembles a…

Materials Science · Physics 2012-08-27 S. Salem-Sugui, , A. D. Alvarenga , R. D. Noce , C. Salazar Mejia , H. Salim , F. G. Gandra

Thin films of magnetite (Fe3O4) are grown on single crystal GaAs (100) substrate by pulsed laser deposition. X ray diffraction (XRD) result shows the (111) preferred orientation of the Fe3O4 film and x-ray photoelectron spectroscopy confirm…

Materials Science · Physics 2009-12-08 Ram Prakash , R. J. Choudhary , L. S. Sharath Chandra , N. Lakshmi , D. M. Phase

High quality single crystal Fe3O4 thin films with (111) orientation had been prepared on amorphous SiO2 substrate by pulsed laser deposition. The magnetization properties of the films are found to be highly unconventional. The Verwey…

Strongly Correlated Electrons · Physics 2014-11-04 Zhi-Guo Liu , Shang-Fei Wu , Jia-Xin Yin , Wen-Hong Wang , Wan-Dong Kong , Hao-Jun Yang , Pierre Richard , Hong Ding , Lei Yan

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…

Materials Science · Physics 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 in-plane magnetoresistance (MR) in La2-xSrxCuO4 films with 0.03 < x < 0.05 has been studied in the temperature range 1.6 K to 100 K, and in magnetic fields up to 14 T, parallel and perpendicular to the CuO2 planes. The behavior of the…

Superconductivity · Physics 2009-11-10 Marta Z. Cieplak , A. Malinowski , S. Guha , M. Berkowski

The effect of vacuum annealing thin films of the compensated ferrimagnetic half-metal Mn2RuxGa at temperatures from 250 to 400 degree Celsius is investigated. The 39.3 nm films deposited on (100) MgO substrates exhibit perpendicular…

Materials Science · Physics 2019-04-04 K. E. Siewierska , G. Atcheson , K. Borisov , M. Venkatesan , K. Rode , J. M. D. Coey

Kagome magnet usually hosts nontrivial electronic or magnetic states drawing great interests in condensed matter physics. In this paper, we report a systematic study on transport properties of kagome magnet TmMn$_6$Sn$_6$. The prominent…

Strongly Correlated Electrons · Physics 2022-11-21 Bin Wang , Enkui Yi , Leyi Li , Jianwei Qin , Bing-Feng Hu , Bing Shen , Meng Wang

RuO$_{2}$ has been proposed as the prototypical altermagnetic material. However, several reports have recently questioned its intrinsic magnetic ordering, leading to conflicting findings, especially in thin film heterostructures pointing to…

A wide variation in the disorder strength, as inferred from an order of magnitude variation in the longitudinal resistivity of Co2FeSi (CFS) Huesler alloy thin films of fixed (50 nm) thickness, has been achieved by growing these films on…

Mesoscale and Nanoscale Physics · Physics 2019-03-08 Binoy Krishna Hazra , S. N. Kaul , S. Srinath , M. Manivel Raja , R. Rawat , Archana Lakhani

Variable temperature scanning tunneling microscopy/spectroscopy studies on (110) oriented epitaxial thin films of La$_{0.350}$Pr$_{0.275}$Ca$_{0.375}$MnO$_3$ are reported in the temperature range of 77 to 340 K. The films, grown on lattice…

Strongly Correlated Electrons · Physics 2009-11-13 Udai Raj Singh , S. Chaudhuri , Shyam K. Choudhary , R. C. Budhani , Anjan K. Gupta

Pulsed laser deposited films of Co doped anatase TiO2 are examined for Co substitutionality, ferromagnetism, transport, magnetotransport and optical properties. Our results show limited solubility (up to ~ 2 %) of Co in the as-grown films…

We report on the longitudinal magnetoresistance (MR) in thin metal films on an Ising-type antiferromagnetic insulator, Na5Co15.5Te6O36 (NCTO). Steep changes in the MR spectra with hysteresis were observed at spin-flip transitions driven by…

Strongly Correlated Electrons · Physics 2026-05-04 Hirotsugu Tagami , Takuya Kawada , Yuki Shiomi

In this work, we present the investigation of temperature dependent hall measurement of the ultra thin VO$_2$ films grown on Si/SiO$_2$ substrate. Experimental results suggest that electrons are the predominant carrier both in the…

Materials Science · Physics 2016-09-19 Fangfang Song , B. E. White.

Ferromagnetic Co$_2$MnGa has recently attracted significant attention due to effects related to non-trivial topology of its band structure, however a systematic study of canonical magneto-galvanic transport effects is missing. Focusing on…