2e2/h to e2/h switching of quantum conductance associated with a change in nanoscale ferromagnetic domain structure

1999 ◽  
Vol 75 (11) ◽  
pp. 1622-1624 ◽  
Author(s):  
Teruo Ono ◽  
Yutaka Ooka ◽  
Hideki Miyajima ◽  
Yoshichika Otani
1971 ◽  
Vol 43 (1) ◽  
pp. 163-173 ◽  
Author(s):  
G. Dedié ◽  
J. Niemeyer ◽  
Ch. Schwink

2019 ◽  
Vol 59 (8) ◽  
pp. 1324-1332 ◽  
Author(s):  
S. V. Batalov ◽  
V. V. Kiselev ◽  
A. A. Raskovalov

1975 ◽  
Author(s):  
H. J. Leamy ◽  
T. Wakiyama ◽  
G. Y. Chin

The domain structure in crystals of natural and synthetic haematite has been examined using the colloid method. A special acetone based colloid was developed which allowed the domain structure to be observed down to -30 °C. In the case of the synthetic crystals, the domain structure disappeared below -14 °C (the transformation temperature to the antiferromagnetic state), whereas no change was observed for haematite crystals from Elba. A detailed account is given of the stages leading to the disappearance of the domain structure for one of the synthetic crystals.


Observations are reported of the ferromagnetic domain structure of natural and synthetic single crystals, made at temperatures close to the low temperature transition with the aid of an acetone based magnetic colloid. The domain structure of the synthetic crystals was found to change radically over a small temperature range centred around –12 °C. These changes are correlated with the measured remanent magnetization. Fairly extensive colloid patterns were found on the natural crystals at low temperatures but when the natural crystals were annealed at 1200 °C this low temperature colloid structure was no longer found.


2003 ◽  
Vol 44 (12) ◽  
pp. 2567-2569 ◽  
Author(s):  
Shigeo Mori ◽  
Toru Asaka ◽  
Yoichi Horibe ◽  
Yoshio Matsui ◽  
Ryozo Shiozaki ◽  
...  

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