Giant Ferromagnetic Hall Coefficient in La0.5Ca0.5CoO3

1997 ◽  
Vol 474 ◽  
Author(s):  
A. V. Samoilov ◽  
N. -C. Yeh ◽  
R. P. Vasquez
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Hall Effect ◽  
Hall Coefficient ◽  
Single Phase ◽  
Anomalous Hall Effect ◽  
Convincing Evidence ◽  
Hall Probe ◽  
Ferromagnetic Metals ◽  
Percolation Behavior

ABSTRACTWe report the studies of the Hall effect and magnetic properties in La0.5Ca0.5CoO3 thin films and ceramics. We use the local Hall probe and SQUID magnetometers to measure the magnetization M of the samples. Both below and above the Curie temperature, the Hall resistivity pxy(H) is shown to be proportional to M(H) (H is the applied magnetic field). Thus, our results provide convincing evidence for the anomalous Hall effect in these cobaltites. The value of the anomalous Hall coefficient Rs in La0.5Ca0.5CoO3 significantly exceeds those of other known single-phase ferromagnetic metals. We suggest that the coexistence of high- and low-spin configurations in the perovskite cobaltites, which gives rise to magnetic percolation behavior in La1-xCax.CoO3,may be responsible for the giant Ra.

Magnetotransport Study of Electron Doping in Sr2FeMoO6

2011 ◽  
Vol 700 ◽  
pp. 19-22
Author(s):  
Jibu Stephen ◽  
Grant V. M. Williams ◽  
Benjamin J. Ruck
Keyword(s):  
Magnetic Fields ◽  
Hall Effect ◽  
Hall Coefficient ◽  
Anomalous Hall Effect ◽  
Small Decrease ◽  
Electron Doping ◽  
La Doped

We report the results from magnetotransport measurements on polycrystalline Sr2-xLaxFeMoO6 samples at magnetic fields of up to 8 T. We observe a normal as well as an anomalous Hall effect. We find that there is a small decrease in the normal Hall coefficient for La doped samples.

scholarly journals The structural, optical and magnetic properties and anomalous Hall effect of InMnP:Zn epilayers

2008 ◽  
Vol 10 (11) ◽  
pp. 115002 ◽  
Author(s):  
Yoon Shon ◽  
Sejoon Lee ◽  
D Y Kim ◽  
T W Kang ◽  
Chong S Yoon ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Optical And Magnetic Properties

scholarly journals Influence of disorder on magnetic properties and intrinsic anomalous hall effect in epitaxial Co2FeAl film

2017 ◽  
Vol 254 ◽  
pp. 48-51 ◽  
Author(s):  
K.K. Meng ◽  
J. Miao ◽  
X.G. Xu ◽  
Y. Wu ◽  
J.H. Zhao ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hall Effect ◽  
Anomalous Hall Effect

Anomalous Hall Effect–Like Behavior with In‐Plane Magnetic Field in Noncollinear Antiferromagnetic Mn 3 Sn Films

2019 ◽  
pp. 1800818 ◽  
Author(s):  
Yunfeng You ◽  
Xianzhe Chen ◽  
Xiaofeng Zhou ◽  
Youdi Gu ◽  
Ruiqi Zhang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Anomalous Hall Effect

Magnetic properties and anomalous Hall effect in antiferromagnetic Mn3Sn films

2020 ◽  
pp. 412692
Author(s):  
Zhongping Zhao ◽  
Qi Guo ◽  
Fenghua Chen ◽  
Kewei Zhang ◽  
Yong Jiang
Keyword(s):  
Magnetic Properties ◽  
Hall Effect ◽  
Anomalous Hall Effect

STRUCTURAL, ELECTRONIC STRUCTURE, TRANSPORT AND MAGNETIC STUDIES OF NdFe1-xNixO3(x = 0.4, 0.5)

2011 ◽  
Vol 25 (32) ◽  
pp. 2439-2450 ◽  
Author(s):  
ABIDA BASHIR ◽  
MOHD IKRAM ◽  
RAVI KUMAR
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Magnetic Properties ◽  
Electronic Structure ◽  
Embedded System ◽  
Single Phase ◽  
Magnetic Studies ◽  
Paramagnetic Doublet ◽  
Chemical States ◽  
The Embedded System

The structural, transport, electronic structure and magnetic properties of NdFe 1-x Ni x O 3(x = 0.4, 0.5) samples are studied. Both the samples are in single phase with orthorhombic Pbnm structure. The transport properties show the semiconducting nature of the system and no transition is seen on the application of magnetic field. The electronic structure studies verify the chemical states of the ions in the embedded system and the symmetry of the interacting ions. The magnetic properties show the transition from ferromagnetic to paramagnetic phase and which is studied through the Mossbauer studies. The paramagnetic doublet in the x = 0.5 system clearly shows the phase transition from ferromagnetic to paramagnetic.

scholarly journals HALL EFFECT STUDIES OF THE SUPERCONDUCTING FERROMAGNET UCoGe

2017 ◽  
Vol 35 (2) ◽  
Author(s):  
Danica Krstovska ◽  
Eden Steven ◽  
Andhika Kiswandhi ◽  
James S. Brooks
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Simple Relation ◽  
Hall Resistance ◽  
Unusual Behavior ◽  
Perpendicular Component ◽  
Induced Changes ◽  
The Magnetic Field ◽  
Characteristic Field

We find that the Hall effect in a single crystal of UCoGe varies as a function of the angle  between the applied magnetic field and the easy magnetic axis up to fields of 18 T at 0.2 K, i.e. in the region where both superconductivity and ferromagnetic order coexist. Instead of following the conventional cos dependence the two components that com-prise the total Hall resistance, the anomalous and ordinary Hall effect, exhibit quite an unusual behavior with the field direction. The anomalous Hall effect is found to be determined by the parallel component of the magnetization. We sug-gest that the field induced changes in magnetization due to the field rotation play an important role in the observed unu-sual behavior. The ordinary Hall effect cannot be described by the simple relation to the perpendicular component of the magnetic field implying that this component of the Hall effect may be also affected by the variations in magnetization at the characteristic field (kink field). A field induced moment polarization is also observed in Hall effect as in magnetore-sistance, which advances previous findings in UCoGe. The Hall effect slope reverses sign at the kink field indicative of small but possible Fermi surface reconstruction around this field. Our findings show that in UCoGe multiple mecha-nisms contribute to the observed field induced moment polarization at the kink field.

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