TITLE

Transition of magnetic state from A-type antiferromagnetic to ferromagnetic in electron-doped Nd1-xCexMnO3

AUTHOR(S)
Shixiong Zhang, M. A.; Lan Luan, M. A.; Shun Tan, M. A.; Yuheng Zhang
PUB. DATE
April 2004
SOURCE
Applied Physics Letters;4/19/2004, Vol. 84 Issue 16, p3100
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The transition of the magnetic state with x increasing in electron-doped manganite Nd1-xCexMnO3 is investigated through the measurements of magnetism, including the M–T and hysteresis curves. For x=0.04, with temperature increasing, M under zero-field cooling indicates that the magnetic structure changes from ferromagnetic (FM) to antiferromagnetic then to FM again and finally turns to paramagnetic (PM). However, the field-cooling M–T curve shows a negative M at 5 K then increases rapidly to a positive maximum and finally turns to PM. The experiment results are well fitted with Weiss’s molecular field theory and Néel’s ferrimagnetic model. With the enhancement of Ce content (x=0.08 and 0.10), this system gradually exhibits simple transition from FM to PM. © 2004 American Institute of Physics.
ACCESSION #
12817075

 

Related Articles

  • Spin-orbit Induced Electric Field Gradients in Magnetic Solids. Ebert, H.; Battocletti, M. // Hyperfine Interactions;2004, Vol. 158 Issue 1-4, p25 

    The spin–orbit induced electric field gradient in cubic ferromagnets has been observed experimentally in the past for many systems. Even its dependence on the orientation of the magnetisation with respect to the crystallographic axes could be convincingly demonstrated. A fully...

  • Magnetization at the Surface of Unconventional Superconductors. Arthur, Ekpekpo // Australian Journal of Basic & Applied Sciences;Mar2012, Vol. 6 Issue 3, p76 

    The finite ferromagnetic moments do not occur macroscopically in the bulk region of a superconductor due to complete screening by diamagnetic currents. However, in homogeneities of the superconducting state can produce a local occurrence of magnetic field, especially if the screening length is...

  • Magnetization process in a ferromagnetic disk measured by a semiconductor two-dimensional electron gas. Hara, Masahiro; Otani, Yoshichika // Journal of Applied Physics;3/1/2007, Vol. 101 Issue 5, p056107 

    We have monitored a magnetization process in a ferromagnetic disk by measuring a bend resistance of semiconductor two-dimensional electron gas (2DEG) lying beneath the disk. Annihilation and nucleation of a vortex in the ferromagnetic disk are clearly seen in the trace of the bend resistance as...

  • A nonlinear constitutive model for Terfenol-D rods. Zheng, X. J.; Liu, X. E. // Journal of Applied Physics;3/1/2005, Vol. 97 Issue 5, p053901 

    To overcome some deficiencies in previous constitutive models of giant magnetostrictive materials, a nonlinear and coupled model is suggested to describe the constitutive relations for a Terfenol-D rod subjected to an axial pre-stress and then located in an axial magnetic field. The numerical...

  • Imaging spontaneous currents in superconducting arrays of Ï€-junctions. Frolov, Sergey M.; Stoutimore, Micah J. A.; Crane, Trevis A.; Van Harlingen, Dale J.; Oboznov, Vladimir A.; Ryazanov, Valery V.; Ruosi, Adele; Granata, Carmine; Russo, Maurizio // Nature Physics;Jan2008, Vol. 4 Issue 1, p32 

    A charge current can flow between two superconductors separated by a thin barrier. This phenomenon is the Josephson effect, which enables a current to tunnel at zero voltage, typically with no phase shift between the superconductors in the lowest-energy state. Recently, Josephson junctions with...

  • Dynamics of domain walls in weak ferromagnets with quadratic magnetoelectric interaction. Gerasimchuk, V.; Shitov, A. // Physics of the Solid State;Jan2012, Vol. 54 Issue 1, p84 

    The dynamics of domain walls of the ab type in weak ferromagnets with a quadratic magnetoelectric interaction has been studied in ac magnetic and electric fields. The specific features of the vibrational and drift motions of the domain walls as functions of parameters of the external fields and...

  • Magnetization Process near the Curie Temperature of a Ferromagnetic Heusler Alloy CoVGa. Nishihara, H.; Furutani, Y.; Wada, T.; Kanomata, T.; Kobayashi, K.; Kainuma, R.; Ishida, K.; Yamauchi, T. // Journal of Superconductivity & Novel Magnetism;Feb2011, Vol. 24 Issue 1/2, p679 

    The field dependence of the magnetization of a ferromagnetic Heusler alloy CoVGa has been measured close to the Curie temperature of 358 K up to an applied field of 50 kOe. Results for samples with different Curie temperatures of 351 K are also reported. The critical exponent δ has been...

  • Physical model of plastic deformation on magnetization in ferromagnetic materials. Wang, Z. D.; Deng, B.; Yao, K. // Journal of Applied Physics;Apr2011, Vol. 109 Issue 8, p083928 

    Traditional magnetic/stress coupling models are based on the magnetoelastic theory, which cannot explain magnetic phenomena when ferromagnetic materials are subjected to a plastic deformation. To promote the development of magnetomechanical theories, a new physical-based magnetic/stress coupling...

  • Spin-dependent tunneling in junctions containing metals with charge density waves in a magnetic field. Voĭtenko, A. I.; Gabovich, A. M. // Physics of the Solid State;Dec2006, Vol. 48 Issue 12, p2240 

    The dependences of the differential tunneling conductance G on the voltage V across a junction in an external magnetic field H are calculated for two types of junctions involving normal or superconducting metals with charge density waves (CDWs). Junctions of the first type are asymmetric CDW...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics