Photoinduced Heating and Phase Transition in CMR Materials

2001 ◽  
Vol 690 ◽  
Author(s):  
N. Noginova ◽  
E. Arthur ◽  
R. Ulysse ◽  
E. S. Gillman ◽  
C. E. Bonner
Keyword(s):  
Experimental Data ◽  
Thin Films ◽  
Phase Transition ◽  
Laser Light ◽  
Ferromagnetic Phase ◽  
Relaxation Processes ◽  
Light Illumination ◽  
Fast Switching ◽  
Ferromagnetic Phase Transition ◽  
Time Specific

ABSTRACTFast switching from conductor to insulator induced by laser light illumination has been studied in single crystals and thin films of La1−xSrxMnO3 in the range of the ferromagnetic phase transition. Based on our experimental data on the photoresponse as a function of temperature, electric current, and intensity, we have demonstrated that the switching and relaxation processes are determined by heating and heat conduction processes. The relaxation time, specific heat and the latent heat constants have been estimated.

Ferromagnetic phase transition in ultra-thin films

2006 ◽  
Vol 243 (6) ◽  
pp. 1352-1359 ◽  
Author(s):  
S. Tuleja ◽  
J. Kecer ◽  
V. Ilkovič
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Ferromagnetic Phase ◽  
Ferromagnetic Phase Transition

scholarly journals Vertical Strain-Driven Antiferromagnetic to Ferromagnetic Phase Transition in EuTiO3 Nanocomposite Thin Films

2020 ◽  
Vol 12 (7) ◽  
pp. 8513-8521 ◽  
Author(s):  
Yisong Lin ◽  
Eun-Mi Choi ◽  
Ping Lu ◽  
Xing Sun ◽  
Rui Wu ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Ferromagnetic Phase ◽  
Vertical Strain ◽  
Nanocomposite Thin Films ◽  
Ferromagnetic Phase Transition

MAGNETIC POLARONS MEDIATED PERCOLATIVE PHASE TRANSITION IN MANGANITES

1999 ◽  
Vol 13 (12n13) ◽  
pp. 379-384 ◽  
Author(s):  
I. F. LYUKSYUTOV ◽  
V. L. POKROVSKY
Keyword(s):  
Experimental Data ◽  
Phase Transition ◽  
Ferromagnetic Phase ◽  
Metal Insulator ◽  
Polaron Model ◽  
Magnetic Polarons ◽  
Large Polaron ◽  
Jahn Teller ◽  
Insulator Phase Transition ◽  
Ferromagnetic Phase Transition

We discuss possible models for describing the metal-insulator phase transition coupled with paramagnetic-ferromagnetic phase transition in manganites. We argue that current models have apparent drawbacks. As a way to explain experiments we introduce the magnetic (large) polaron model. In this model, the conductivity appears as a result of percolative overlapping of magnetic polarons which coexist with small (Jahn-Teller) polarons. We compare this model with the experimental data.

Antiferromagnetic-ferromagnetic phase transition in (Zn,Sn,Mn)As2 epitaxial thin films

2017 ◽  
Vol 110 (13) ◽  
pp. 132410 ◽  
Author(s):  
Shiro Hidaka ◽  
Hideyuki Toyota ◽  
Naotaka Uchitomi
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Ferromagnetic Phase ◽  
Epitaxial Thin Films ◽  
Ferromagnetic Phase Transition

Magnetic Properties of Organic Ferromagnetic TDAE-C60 Single Crystals and Thin Films

1997 ◽  
Vol 488 ◽  
Author(s):  
M. Tokumoto ◽  
Y. Tsubaki ◽  
K. Pokhodnya ◽  
Y. sakakibara ◽  
A. Omerzu ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Transition ◽  
Magnetic Properties ◽  
Single Crystals ◽  
Recent Progress ◽  
Spontaneous Magnetization ◽  
Ferromagnetic Phase ◽  
Diffusion Method ◽  
Ferromagnetic Phase Transition

AbstractRecent progress in the study on magnetic properties of molecular soft ferromagnet TDAE-C60 (where TDAE is tetrakis(dimethylamino) ethylene) is reported. Both crystalline and thin film samples are prepared by the diffusion method and the temperature and field dependence of magnetization are studied by SQUID magnetometer. The magnetic behaviors of single crystals were found to vary from sample to sample. In best single crystals, the saturation magnetization as high as 1.0 μB/C60 has been observed. Spontaneous magnetization and its temperature dependence was evaluated from the Arrott plot. The ferromagnetic phase transition was also observed in TDAE-C60 thin films.

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