scholarly journals WEAK LOCALIZATION AND INTERACTION EFFECTS IN THE LOW TEMPERATURE RESISTIVITY AND MAGNETORESISTANCE OF DISORDERED Cu33Y67

1988 ◽  
Vol 37 (2) ◽  
pp. 248
Author(s):  
LI YAN-FEI
2015 ◽  
Vol 11 (3) ◽  
pp. 3184-3189 ◽  
Author(s):  
Proloy T. Das

The low-temperature electronic transport behavior of under doped polycrystalline Pr0.8Sr0.2MnO3 (PSMO) manganitenanoparticles (down to 40 nm), have been investigated in the presence of applied external magnetic fields (Hext) and adistinct resistivity minimum (ρmin) is observed below 50 K for each PSMO sample. It has been found that both depth of ρmin,and temperature of resistivity minima (min T ) values enhance with increase of Hext. Considering various possibilities likeCoulomb blockade theory, electron-electron interaction, phase separation, Kondo mechanism, we conclude thatoccurrence of low temperature resistivity anomalies (<min T ) in PSMO manganite system is presumably due to acombined effect of electron-electron interaction (~T1/2) and 3D weak localization (WL) mechanism. The proposed modelcan explain spin dependent scattering phenomena in disorder background of correlated manganite system and behaviorof various fit parameters responsible for low temperature resistivity anomalies under external magnetic fields.


2004 ◽  
Vol 268 (1-2) ◽  
pp. 24-28 ◽  
Author(s):  
Z. Sefrioui ◽  
J.L. Menéndez ◽  
A. Cebollada ◽  
F. Briones ◽  
A. Hernando

1976 ◽  
Vol 6 (1) ◽  
pp. 73-83 ◽  
Author(s):  
E Babic ◽  
R Krsnik ◽  
M Ocko

2012 ◽  
Vol 112 (12) ◽  
pp. 123710 ◽  
Author(s):  
E. J. Guo ◽  
L. Wang ◽  
Z. P. Wu ◽  
L. Wang ◽  
H. B. Lu ◽  
...  

1974 ◽  
Vol 52 (18) ◽  
pp. 1759-1764 ◽  
Author(s):  
F. T. Hedgcock ◽  
S. Lenis ◽  
P. L. Li ◽  
J. O. Ström-Olsen ◽  
E. F. Wassermann

We have extended the low temperature magnetic anisotropy measurements on single crystals of zinc containing up to 600 p.p.m. manganese from magnetic fields of 9 to 56 kG. The crystal field splitting parameters determined at low magnetic fields also characterizes the magnetic anisotropy at high magnetic fields. Manganese–manganese interaction effects are observed in the magnetic anisotropy at manganese concentrations greater than 300 p.p.m. Low temperature magnetic anisotropy measurements on single crystals of zinc containing up to 164 p.p.m. chromium are reported and indicate a crystal field splitting of 0.16 K for the chromium ion.


2014 ◽  
Vol 551 ◽  
pp. 195-199 ◽  
Author(s):  
Bunju Shinozaki ◽  
Kazuya Hidaka ◽  
Syouhei Ezaki ◽  
Kazumasa Makise ◽  
Takayuki Asano ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document