EXTRAORDINARY HALL EFFECT IN ULTRA-THIN Fe–Pt FILMS AND FABRICATION OF NANOMICRO HALL DEVICES

2004 ◽  
Vol 03 (01n02) ◽  
pp. 149-154 ◽  
Author(s):  
V. N. MATVEEV ◽  
V. A. BEREZIN ◽  
V. T. VOLKOV ◽  
A. A. FIRSOV ◽  
O. V. KONONENKO ◽  
...  

Fe – Pt alloy thin and ultra thin films were deposited by the pulse laser evaporation method. Micronano Hall devices were fabricated from ultra thin films by an Ar plasma etching process using electron beam lithography procedures. The extraordinary Hall effect (EHE) in Fe – Pt alloy thin and ultra thin films and micronano Hall devices was investigated. The film thickness reduction is found to cause an increase in Hall voltage, which means an enhancement of field sensitivity of the Hall sensor. Maximum sensitivity S=260 Ω/ T was measured in ultra thin film with thickness d=20 Å.

1993 ◽  
Vol 73 (10) ◽  
pp. 6399-6401 ◽  
Author(s):  
T. Sands ◽  
J. De Boeck ◽  
J. P. Harbison ◽  
A. Scherer ◽  
H. L. Gilchrist ◽  
...  

2012 ◽  
Vol 407 (16) ◽  
pp. 3178-3180 ◽  
Author(s):  
S. Michea ◽  
J.C. Denardin ◽  
M. Gamino ◽  
L.S. Dorneles ◽  
M.A. Corrêa

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 675
Author(s):  
Gernot Heine ◽  
Wolfgang Lang ◽  
Roman Rössler ◽  
Johannes D. Pedarnig

The resistivity and the Hall effect in the copper-oxide high-temperature superconductor YBa2Cu3O7-δ (YBCO) are remarkably anisotropic. Using a thin film of YBCO grown on an off-axis cut SrTiO3 substrate allows one to investigate these anisotropic transport properties in a planar and well-defined sample geometry employing a homogeneous current density. In the normal state, the Hall voltage probed parallel to the copper-oxide layers is positive and strongly temperature dependent, whereas the out-of-plane Hall voltage is negative and almost temperature independent. The results confirm previous measurements on single crystals by an entirely different measurement method and demonstrate that vicinal thin films might be also useful for investigations of other layered nanomaterials.


2000 ◽  
Vol 24 (4−2) ◽  
pp. 543-546 ◽  
Author(s):  
M. Watanabe ◽  
T. Iwasa ◽  
T. Masumoto

2010 ◽  
Vol 178 ◽  
pp. 270-274 ◽  
Author(s):  
Cui Xia Li ◽  
Zhi Hong Li ◽  
Xue Yan Du ◽  
Shi Yi Shi

Fe-Pt binary alloy thin films were fabricated through a pluse electrodeposition in a novel bath with a simple composition on copper substrates. Composition, morphology and structure of electrodeposited Fe-Pt films were investigated in dependence on deposition potential. In a broad potential range from 2.0 to 6.0V, oxygen was detected in the films. Continuous Fe-Pt alloy films with controllable compositions in 16-58 atom% Fe were achieved on copper substrates. In particular, the films with a composition close to 1:1 Fe/Pt was obtained at -4.7V. All Fe-Pt films as-synthesized exhibited essential characteristics of soft magnetic and isotropic behavior, as investigated by a vibrating sample magnetometer (VSM).


2015 ◽  
Vol 106 (1) ◽  
pp. 012401 ◽  
Author(s):  
Hao-Bo Li ◽  
Mengyin Liu ◽  
Feng Lu ◽  
Weichao Wang ◽  
Yahui Cheng ◽  
...  

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