Results 191 to 200 of about 9,208 (237)

Current-sensitive Hall effect in a chiral-orbital-current state. [PDF]

Nat Commun
Zhang Y, Ni Y, Schlottmann P, Nandkishore R, DeLong LE, Cao G.   +5 more
europepmc   +1 more source

Thickness-dependent polaron crossover in tellurene. [PDF]

Sci Adv
Zhang K, Fu C, Kelly S, Liang L, Kang SH, Jiang J, Zhang R, Wang Y, Wan G, Siriviboon P, Yoon M, Ye PD, Wu W, Li M, Huang S.   +14 more
europepmc   +1 more source

Colossal electroresistance and colossal magnetoresistance in spinel multiferroic CdCr2S4 [PDF]

Applied Physics Letters, 2010
Colossal magnetoresistance (CMR) and colossal electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity ρ of CdCr2S4 responds similarly to that of CMR manganites.
C L Huang, H Berger, H D Yang
exaly   +3 more sources

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Physica B: Condensed Matter, 2000
Abstract Structural, magnetic and transport properties of the polycrystalline manganese perovskite La 0.96−y Nd y K 0.04 MnO 3+δ with 0⩽y⩽0.4 have been experimentally studied. A partially disordered state is created as La is substituted by Nd, reflecting the competition between the ferromagnetic double-exchange and ...
Roland Mathieu, Yongquan Guo, Peter Svedlindh, Per Nordblad, Roger Wäppling   +4 more
openaire   +1 more source

Theory of colossal magnetoresistance [PDF]

Current Opinion in Solid State and Materials Science, 1997
The history and recent developments in studying (colossal) magnetoresistance in perovskite manganese oxides is reviewed. We emphasize the growing evidence for strongly coupled spin, charge and lattice degrees of freedom. Together with disorder, these provide the microscopic driving forces for local and inhomogeneous textures.
Bishop, Alan R., Röder, Heinrich
exaly   +3 more sources

Colossal magnetoresistive manganites

Journal of Magnetism and Magnetic Materials, 1999
Abstract Magnetoelectronic features of the perovskite-type manganites are overviewed in the light of the mechanism of the colossal magnetoresistance (CMR). The essential ingredient of the CMR physics is not only the double-exchange interaction but also other competing interactions, such as ferromagnetic/antiferromagnetic superexchange interactions ...
Y Tokura, Y Tomioka
openaire   +1 more source

Colossal magnetoresistance manganites

Uspekhi Fizicheskih Nauk, 2017
Abstract We review lattice, thermodynamic, transport, high-frequency, and optical properties of Re 1 − x D x MnO
N G Bebenin, R I Zainullina, V V Ustinov
openaire   +1 more source

Is a Griffiths Phase a Prerequisite for Colossal Magnetoresistance?

Physical Review Letters, 2007
Detailed measurements of the magnetic and transport behavior of the two La(1-x)Ca(x)MnO(3) single crystals exhibiting colossal magnetoresistance are summarized. The x=0.21 sample exhibits unusual exponents (delta = 20+/-1, gamma = 1.71+/-0.1, beta = 0.09+/-0.01, T(C) = 182+/-1 K) and, more importantly, a Griffiths phase characterized by an exponent ...
Wanjun, Jiang, XueZhi, Zhou, Gwyn, Williams, Y, Mukovskii, K, Glazyrin   +4 more
openaire   +2 more sources

Colossal negative magnetoresistance in an antiferromagnet

Physical Review B, 1998
The magnetization and resistivity of single crystals of the Zintl compound ${\mathrm{Eu}}_{14}{\mathrm{MnBi}}_{11}$ are measured as functions of temperature and applied magnetic field. The magnetization data show an apparent antiferromagnetic transition at ${T}_{N}=32\mathrm{K}$ even though the high-temperature susceptibility suggests that the exchange
Julia Y. Chan, Susan M. Kauzlarich, Peter Klavins, Robert N. Shelton, David J. Webb   +4 more
openaire   +1 more source

Colossal Magnetoresistance in New Manganites

MRS Proceedings, 1999
AbstractThe evolution of structural, electrical and magnetic properties with the isovalent chemical substitution of Ca2+ into the Sr2+ sites in new series of two-dimensional La1.2(Srl.8−XCax)Mn2O7 compounds (x = 0 ∼ 1.8) and three-dimensional La0.6(Sr0.4−xCax)MnO3 compounds (x = 0 ∼ 0.4) are investigated. The highest magnetoresistance (MR) ratios [ρ(0)
C. H. Shen, R. S. Liu, S. F. Hu, J. G. Lin, C. Y. Huang   +4 more
openaire   +1 more source