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Spin reversal and magnetization jumps in ErMexMn1-xO3 perovskites (Me = Ni, Co)
(Elsevier B.V., 2007-05-01)
The erbium-based manganite ErMnO3 has been partially substituted at the manganese site by the transition-metal elements Ni and Co. The perovskite orthorhombic structure is found from x(Ni) = 0.2-0.5 in the nickel-based ...
Spin reversal and magnetization jumps in ErMexMn1-xO3 perovskites (Me = Ni, Co)
(Elsevier B.V., 2007-05-01)
The erbium-based manganite ErMnO3 has been partially substituted at the manganese site by the transition-metal elements Ni and Co. The perovskite orthorhombic structure is found from x(Ni) = 0.2-0.5 in the nickel-based ...
Magnetização remanescente: um parâmetro crucial para a interpretação e modelamento de anomalias magnéticas em território brasileiro
(Sociedade Brasileira de Geofísica, 2009)
A questão da magnetização remanescente na interpretação de anomalias magnéticas é frequentemente negligenciada, principalmente em função da dificuldade em se lidar com a mesma. Na maioria dos casos, tanto nos trabalhos ...
FoF2 long-term trend linked to Earth's magnetic field secular variation at a station under the northern crest of the equatorial ionization anomaly
(American Geophysical Union, 2016-01)
Long-term trend of the critical frequency of the F2 ionospheric region, foF2, at Phu Thuy station (21.03°N, 105.96°E), Vietnam, located under the northern crest of the equatorial ionization anomaly, EIA, is studied. Annual ...
The geomagnetic semiannual anomaly on the four Dst-fundamental observatories: Dependences with Sun-Earth physical parameters
(American Geophysical Union, 2012-07)
The semiannual anomaly (also known as semiannual variation) on the magnetic activity is a phenomenon that produces clear minima during March and September and maxima in June and December on the horizontal components of the ...
Time evolution of the South Atlantic Magnetic Anomaly
(Academia Brasileira de Ciências, 2009)
The South Atlantic Magnetic Anomaly (SAMA) is one of the most outstanding anomalies of the geomagnetic field. The SAMA secular variation was obtained and compared to the evolution of other anomalies using spherical harmonic ...
PCA analysis of the nighttime anomaly in far-from-geomagnetic pole regions from VTEC GNSS data
(Terra Scientific Publishing, 2015-12)
The Weddell Sea Anomaly (WSA) is defined when the nighttime plasma density is greater than the daytime density in the area near the Weddell Sea, more specifically in the region limited by 50° S-70°S in latitude and 225° ...
Magnetic and palaeomagnetic studies as an aid in deciphering groundwater flow: a case study from deccan traps
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2009)
This paper reports the utility of palaeomagnetic investigations first time in the ground water studies. The magnetic anomalies along with palaeomagnetic studies are used to locate barriers obstructing groundwater flow in ...
CIGALA: Challenging the solar maximum in Brazil with PolaRxS
(2011-12-01)
The upcoming solar maximum, which is expected to reach its peak around May 2013, occurs at a time when our reliance on high-precision GNSS has reached unprecedented proportions. The perturbations of the ionosphere caused ...