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Giant magnetoresistance

S. Ornes
2013 Proceedings of the National Academy of Sciences of the United States of America  
The technology, called giant magnetoresistance (GMR), manipulates the magnetic properties of electrons and takes magnetoresistance to a new level.  ...  A read/write head sits above a computer hard disk, manipulating the stored information by the use of giant magnetoresistance.  ... 
doi:10.1073/pnas.1302494110 pmid:23471962 pmcid:PMC3593866 fatcat:d6aafad3hbbm5dtayy7xjwelcq

Giant magnetoresistance

Albert Fert
2011 Scholarpedia  
Another application of the GMR effect is in magnetoresistive random access memory (MRAM), a type of nonvolatile semiconductor memory.  ...  Leong and collaborators experimented with the interfacial resistance principle to show the magnetoresistance is suppressed to zero in NiFe/Cu/NiFe spin-valve at high amounts of interfacial resistance.  ... 
doi:10.4249/scholarpedia.6982 fatcat:rp7kftot3rggplqboaklswg2ny

Giant magnetoresistance inCe2Fe17

Yuri Janssen, H. Fujii, T. Ekino, K. Izawa, T. Suzuki, T. Fujita, F. R. de Boer
1997 Physical Review B (Condensed Matter)  
Below T c ϭ125 K, giant magnetoresistance ͑GMR͒ is induced by the metamagnetic transition from the antiferromagnetic to ferromagnetic states.  ...  We called such an anomalously large magnetic field effect of resistivity ''giant magnetoresistance'' ͑GMR͒.  ...  This word has first been used for huge magnetoresistance in magnetic superlattices. 3 Furthermore, in reentrant ferromagnetic SmMn 2 Ge 2 with the ThCr 2 Si 2 -type layered structure, 4 GMR has been  ... 
doi:10.1103/physrevb.56.13716 fatcat:bk22c5fnwbfdjkoyihtxskhdhy

The Giant Magnetoresistance Effect [chapter]

H. J. M. Swagten, M. M. H. Willekens, W. J. M. Jonge
1998 Frontiers in Magnetism of Reduced Dimension Systems  
doi:10.1007/978-94-011-5004-0_25 fatcat:6dxfwkonfremfgp35ap7jtpo7q

Perspectives of giant magnetoresistance [chapter]

E.Y. Tsymbal, D.G. Pettifor
2001 Solid state physics (New York. 1955)  
The present review is devoted to the physics of giant magnetoresistance. We emphasize the role of the spin-polarized electronic band structure, which is crucial for understanding GMR.  ...  ACKNOWLEDGEMENTS The authors' interest in giant magnetoresistance began in 1995 through a collaborative research program with Hewlett-Packard Laboratories in Palo Alto.  ...  and was, therefore, called "giant magnetoresistance" or GMR.  ... 
doi:10.1016/s0081-1947(01)80019-9 fatcat:ftiyrinyerfxva2caajfhwfor4

Giant magnetoresistance in semiconducting DyNiBi

Frederick Casper, Claudia Felser
2008 Solid State Communications  
The semiconducting half-Heulser compound DyNiBi shows a negative giant magnetoresistance (GMR) below 200 K.  ...  At low temperature, a positive magnetoresistance is found, which can be suppressed by high fields. The magnitude of the positive magnetoresistance changes slightly with the amount of impurity phase.  ...  Devices that have been built utilizing magnetoresistive (MR) effects have become important, e.g., devices built upon the giant magnetoresistance (GMR) effect [2, 3] .  ... 
doi:10.1016/j.ssc.2008.08.027 fatcat:gtcrlo4dp5axlk5jyovzuiari4

Paramagnons, weak disorder and positive giant magnetoresistance [article]

George Kastrinakis
1997 arXiv   pre-print
As a consequence, positive giant magnetoresistance and giant corrections to the Hall coefficient arise.  ...  We obtain very good agreement between this theory and recent positive giant magnetoresistance experiments, while making specific material-dependent predictions.  ...  Plot of the giant magnetoresistance ∆R/R(0), ∆R = R(H) − R(0). The points are the experimental data of ref.  ... 
arXiv:cond-mat/9509073v3 fatcat:xirde4vlljabfbdwwebqnenyoe

Giant magnetoresistance in nanogranular magnets

A. Glatz, I. S. Beloborodov, V. M. Vinokur
2008 Europhysics letters  
We study the giant magnetoresistance of nanogranular magnets in the presence of an external magnetic field and finite temperature.  ...  We show that the magnetization of arrays of nanogranular magnets has hysteretic behaviour at low temperatures leading to a double peak in the magnetoresistance which coalesces at high temperatures into  ...  INTRODUCTION Recent experimental studies of magnetic nanoarrays [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14] revealed the giant magnetoresistance (MR) effect.  ... 
doi:10.1209/0295-5075/82/47002 fatcat:uctmnt6ng5dudn25hzxbipvrji

Giant magnetoresistance in silicene nanoribbons

Chengyong Xu, Guangfu Luo, Qihang Liu, Jiaxin Zheng, Zhimeng Zhang, Shigeru Nagase, Zhengxiang Gao, Jing Lu
2012 Nanoscale  
doi:10.1039/c2nr00037g pmid:22508440 fatcat:vy7vbngjm5aypfcb25ibyjlvnq

Anisotropic giant magnetoresistance in NbSb2

Kefeng Wang, D. Graf, Lijun Li, Limin Wang, C. Petrovic
2014 Scientific Reports  
The metal-semiconductor crossover is preserved when the current is along the ac-plane but the magnetoresistant ratio is significantly suppressed.  ...  The extremely large transverse magnetoreistance (the magnetoresistant ratio ∼ 1.3×10^5% in 2 K and 9 T field, and 4.3× 10^6% in 0.4 K and 32 T field, without saturation), and the metal-semiconductor crossover  ...  FIG. 2 . 2 (color online) The anisotropic giant magnetoresistance of NbSb2.  ... 
doi:10.1038/srep07328 pmid:25476239 pmcid:PMC4256591 fatcat:rvzwnlpl7vdq3fcfpjdnggogpy

Multilayer Structures with Giant Magnetoresistance

F. Stobiecki, T. Stobiecki
2002 Acta Physica Polonica. A  
Mi cki ewicza 30, 30-059 Kra k §w, Po l and T h e phe nomeno logi cal de scrip tio n of the giant magnetoresistance e˜ect as w ell as the discussion of the re quirements w hich must be fulÙlled in giant  ...  For these structures w e also discuss the inÛuence of the structure def ects such as surf ace roughness and pinholes on the giant magnetoresistance e˜ect.  ... 
doi:10.12693/aphyspola.102.95 fatcat:iyqtxwbfsvgjnge5nkcv2rp3ty

Anisotropic and giant magnetoresistive elements

J.C.S. Kools, R. Coehoorn, W. Folkerts, M.C. De Nooijer, G.H.J. Somers
1998 Philips Journal of Research  
The technology of magnetoresistive element (MRE) fabrication and integration as well as some experimental results on the performance of anisotropic and giant magnetoresistive elements are discussed.  ...  Part of this work was carried out in the framework of the European Union ESPRIT3 Basic Research Project 'Study of magnetic Multilayers for magnetoresistive Sensors', SmMmS.  ...  The structure, fabrication and properties of these materials, showing the giant magnetoresistance (GMR) or spin valve effect, are discussed elsewhere in this issue [2] .  ... 
doi:10.1016/s0165-5817(97)00005-3 fatcat:u42wblaulra6rb4sz22mos6glu

Giant Magnetoresistance in Hubbard Chains

Jian Li, Chen Cheng, Thereza Paiva, Hai-Qing Lin, Rubem Mondaini
2018 Physical Review Letters  
The known picture that describes the giant magnetoresistance, by interpreting the scattering amplitudes of parallel or antiparallel polarized currents with local magnetizations, is obtained without having  ...  use numerically unbiased methods to show that the one-dimensional Hubbard model with periodically distributed on-site interactions already contains the minimal ingredients to display the phenomenon of magnetoresistance  ...  Introduction The phenomenon of giant magnetoresistance highlights the speed in which some results in basic research can be rapidly converted into technological applications.  ... 
doi:10.1103/physrevlett.121.020403 pmid:30085764 fatcat:jaqdie3enbcc7cshbaebdbmnfi

Microscopic mechanisms of giant magnetoresistance

C. Vouille, A. Barthélémy, F. Elokan Mpondo, A. Fert, P. A. Schroeder, S. Y. Hsu, A. Reilly, R. Loloee
1999 Physical Review B (Condensed Matter)  
We present magnetoresistance measurements aimed at answering several open questions in the understanding of giant magnetoresistance ͑GMR͒.  ...  INTRODUCTION Although giant magnetoresistance ͑GMR͒ is applied nowadays in several devices, its understanding at the microscopic scale is not completely clear yet. 1 There are still a number of pending  ...  A reference resistor and SQUIDbased null detector were used to measure the CPP magnetoresistance.  ... 
doi:10.1103/physrevb.60.6710 fatcat:x3it2cmspjh37gai7nuwiaod4i

Point-contact search for antiferromagnetic giant magnetoresistance [article]

Z. Wei, A. Sharma, J. Bass, M. Tsoi
2008 arXiv   pre-print
These measurements were intended to search for a recently predicted antiferromagnetic giant magnetoresistance (AGMR) similar to GMR seen in multilayers containing two ferromagnetic layers separated by  ...  We report the first measurements of effects of large current densities on current-perpendicular-to-plane magnetoresistance (MR) of magnetic multilayers containing two antiferromagnetic layers separated  ...  Giant Magnetoresistance (GMR) in ferromagnetic/nonmagnetic (F/N) multilayers has been a focus of intensive study for two decades, both for interesting fundamental physics [1, 2] and important industrial  ... 
arXiv:0711.0059v3 fatcat:3ialksunnzfpncz3nzi4hdxsjq
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