Magnetic versus orbital polarons in colossal magnetoresistance manganites

2002 ◽  
Vol 65 (10) ◽  
Author(s):  
J. M. De Teresa ◽  
M. R. Ibarra ◽  
P. Algarabel ◽  
L. Morellon ◽  
B. García-Landa ◽  
...  
Keyword(s):  
Colossal Magnetoresistance

Pressure-tuned colossal magnetoresistance effect in n-type CdCr2Se4

2021 ◽  
Vol 118 (26) ◽  
pp. 262407
Author(s):  
Bowen Zhang ◽  
Chuanchuan Gu ◽  
Chao An ◽  
Xuliang Chen ◽  
Yonghui Zhou ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Colossal Magnetoresistance Effect

scholarly journals Ultrafast dynamical Lifshitz transition

2021 ◽  
Vol 7 (17) ◽  
pp. eabd9275
Author(s):  
Samuel Beaulieu ◽  
Shuo Dong ◽  
Nicolas Tancogne-Dejean ◽  
Maciej Dendzik ◽  
Tommaso Pincelli ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Colossal Magnetoresistance ◽  
Surface Topology ◽  
Strongly Correlated ◽  
Many Body ◽  
Time Resolved ◽  
Weyl Semimetal ◽  
Lifshitz Transition ◽  
Fermi Surface Topology ◽  
Many Body Systems

Fermi surface is at the heart of our understanding of metals and strongly correlated many-body systems. An abrupt change in the Fermi surface topology, also called Lifshitz transition, can lead to the emergence of fascinating phenomena like colossal magnetoresistance and superconductivity. While Lifshitz transitions have been demonstrated for a broad range of materials by equilibrium tuning of macroscopic parameters such as strain, doping, pressure, and temperature, a nonequilibrium dynamical route toward ultrafast modification of the Fermi surface topology has not been experimentally demonstrated. Combining time-resolved multidimensional photoemission spectroscopy with state-of-the-art TDDFT+U simulations, we introduce a scheme for driving an ultrafast Lifshitz transition in the correlated type-II Weyl semimetal Td-MoTe2. We demonstrate that this nonequilibrium topological electronic transition finds its microscopic origin in the dynamical modification of the effective electronic correlations. These results shed light on a previously unexplored ultrafast scheme for controlling the Fermi surface topology in correlated quantum materials.

Colossal magnetoresistance and spin-glass properties of La1-xTexMnO3 (x = 0.04, 0.1)

2003 ◽  
Vol 48 (13) ◽  
pp. 1321-1324 ◽  
Author(s):  
Guotai Tan ◽  
Peng Duan ◽  
Shouyu Dai ◽  
Zhenghao Chen ◽  
Huibin Lu ◽  
...  
Keyword(s):  
Spin Glass ◽  
Colossal Magnetoresistance ◽  
Glass Properties

Large anisotropy in colossal magnetoresistance of charge orbital ordered epitaxial Sm0.5Ca0.5MnO3films

2009 ◽  
Vol 21 (44) ◽  
pp. 442001 ◽  
Author(s):  
Y Z Chen ◽  
J R Sun ◽  
J L Zhao ◽  
J Wang ◽  
B G Shen ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Large Anisotropy

scholarly journals Colossal Magnetoresistance without Mixed Valence in a Layered Phosphide Crystal

2021 ◽  
pp. 2005755
Author(s):  
Zhi‐Cheng Wang ◽  
Jared D. Rogers ◽  
Xiaohan Yao ◽  
Renee Nichols ◽  
Kemal Atay ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Mixed Valence

Colossal magnetoresistance of perovskite Nd0.67Sr0.33Mn1−xFexO3 single crystals

2001 ◽  
Vol 226-230 ◽  
pp. 884-885 ◽  
Author(s):  
Jun Takeuchi ◽  
Seitaro Hirahara ◽  
Tara P Dhakal ◽  
Kiyotaka Miyoshi ◽  
Kenji Fujiwara
Keyword(s):  
Single Crystals ◽  
Colossal Magnetoresistance
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