Results 1 to 10 of about 8,035 (188)

Colossal magnetocapacitance and colossal magnetoresistance in HgCr2S4 [PDF]

Physical review letters, 2006
We present a detailed study of the dielectric and charge transport properties of the antiferromagnetic cubic spinel HgCr2S4. Similar to the findings in ferromagnetic CdCr2S4, the dielectric constant of HgCr2S4 becomes strongly enhanced in the region ...
Fichtl, R., Hemberger, J., Loidl, A., Lunkenheimer, P., Tsurkan, V., Weber, S.   +5 more
core   +3 more sources

Van der Waals lattice-induced colossal magnetoresistance in Cr2Ge2Te6 thin flakes [PDF]

Nature Communications, 2022
Due to their layered structure, and resulting weak interlayer exchange coupling, van der Waals materials can exhibit distinct behaviour depending on whether the spins are aligned in the plane, or perpendicular.
Wenxuan Zhu, Cheng Song, Lei Han, Tingwen Guo, Hua Bai, Feng Pan   +5 more
doaj   +2 more sources

Exchange Field Induced Magnetoresistance in Colossal Magnetoresistance Manganites [PDF]

Physical Review Letters, 2000
The effect of an exchange field on electrical transport in thin films of metallic ferromagnetic manganites has been investigated. The exchange field was induced both by direct exchange coupling in a ferromagnet/antiferromagnet multilayer and by indirect ...
A. M. Goldman, A. Yu. Dobin, B. H. Miller, C. Kwon, E. Dan Dahlberg, I. N. Krivorotov, I. Panagiotopoulos, J. N. Eckstein, J. Nogues, J. O. O'Donnell, K. Chahara, K. R. Nikolaev, K. R. Nikolaev, K. R. Nikolaev, K. R. Nikolaev, M. N. Baibich, R. von Helmolt, S. Jin, T. Gredig, T. R. McGuire, V. Jaccarino, W. H. Meiklejohn   +21 more
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Modelling colossal magnetoresistance manganites [PDF]

Journal of Physics: Condensed Matter, 2007
I briefly survey here attempts to model the rich and strange behaviour of colossal magnetoresistance manganites, after outlining some of the phenomena observed in them, and describing the three relevant strong local interactions of the e_g electrons (in ...
Ramakrishnan, T. V.
core   +4 more sources

Engineering of Advanced Materials for High Magnetic Field Sensing: A Review [PDF]

Sensors, 2023
Advanced scientific and industrial equipment requires magnetic field sensors with decreased dimensions while keeping high sensitivity in a wide range of magnetic fields and temperatures.
Nerija Žurauskienė
doaj   +2 more sources

Colossal Magnetoresistance is a Griffiths Singularity [PDF]

Physical Review Letters, 2002
It is now widely accepted that the magnetic transition in doped manganites that show large magnetoresistance is a type of percolation effect. This paper demonstrates that the transition should be viewed in the context of the Griffiths phase that arises ...
A. H. Castro Neto, A. J. Bray, A. J. Bray, B. Raquet, C. P. Adams, C. Zener, D. P. Arovas, E. Dagotto, F. M. Hess, J. Burgy, J. Coey, J. L. Garcia-Munoz, J. Lynn, J. M. De Teresa, J. M. Zuo, J. S. Smart, L. P. Gor'kov, M. B. Salamon, M. Jaime, M. Mayr, N. Ohata, P. Anderson, P. Dai, P. Lin, P. Lin, R. B. Griffiths, R. Heffner, R. Heffner, R. Merithew, S. H. Chun, S. Yoon, T. Okuda, V. Podzorov   +32 more
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Colossal negative magnetoresistance in field-induced Weyl semimetal of magnetic half-Heusler compound [PDF]

Nature Communications, 2023
The discovery of topological insulators and semimetals triggered enormous interest in exploring emergent electromagnetic responses in solids. Particular attention has been focused on ternary half-Heusler compounds, whose electronic structure bears ...
Kentaro Ueda, Tonghua Yu, Motoaki Hirayama, Ryo Kurokawa, Taro Nakajima, Hiraku Saito, Markus Kriener, Manabu Hoshino, Daisuke Hashizume, Taka-hisa Arima, Ryotaro Arita, Yoshinori Tokura   +11 more
doaj   +2 more sources

Unconventional insulator-to-metal phase transition in Mn3Si2Te6 [PDF]

Nature Communications
The nodal-line semiconductor Mn3Si2Te6 is generating enormous excitment due to the recent discovery of a field-driven insulator-to-metal transition and associated colossal magnetoresistance as well as evidence for a new type of quantum state involving ...
Yanhong Gu, Kevin A. Smith, Amartyajyoti Saha, Chandan De, Choong-jae Won, Yang Zhang, Ling-Fang Lin, Sang-Wook Cheong, Kristjan Haule, Mykhaylo Ozerov, Turan Birol, Christopher Homes, Elbio Dagotto, Janice L. Musfeldt   +13 more
doaj   +2 more sources

Colossal Magnetoresistance in Layered Diluted Magnetic Semiconductor Rb(Zn,Li,Mn)₄As₃ Single Crystals [PDF]

Nanomaterials
Diluted magnetic semiconductors (DMSs) with tunable ferromagnetism are among the most promising materials for fabricating spintronic devices. Some DMS systems have sizeable magnetoresistances that can further extend their applications.
Yi Peng, Luchuan Shi, Guoqiang Zhao, Jun Zhang, Jianfa Zhao, Xiancheng Wang, Zheng Deng, Changqing Jin   +7 more
doaj   +2 more sources

Origin of colossal magnetoresistance in LaMnO3 manganite. [PDF]

Proc Natl Acad Sci U S A, 2015
Significance Magnetoresistance is the change of resistance in the presence of an external magnetic field. In rare-earth manganite compounds, this change is orders of magnitude stronger than usual and it is promising for developing new spintronic and electronic devices. The colossal magnetoresistance (CMR) effect has been observed
Baldini M, Muramatsu T, Sherafati M, Sherafati M, Mao HK, Malavasi L, Postorino P, Satpathy S, Struzhkin VV.   +8 more
europepmc   +7 more sources