Magnetic & transport properties of quaternary Heusler compounds CoZMnGa (Z=Fe,V)

2020 ◽  
Author(s):  
S. Chatterjee ◽  
S. Majumdar
Keyword(s):  
Transport Properties ◽  
Heusler Compounds ◽  
Magnetic Transport

Emergence of size induced metallic state in the ferromagnetic insulating Pr0.8Sr0.2MnO3 manganite: Breaking of surface polarons

2015 ◽  
Vol 8 (2) ◽  
pp. 2084-2093 ◽  
Author(s):  
PROLOY TARAN DAS ◽  
Arun Kumar Nigam ◽  
Tapan Kumar Nath
Keyword(s):  
Transport Properties ◽  
Metallic State ◽  
Temperature Dependent ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
System A ◽  
Surface Disorder ◽  
Bulk System ◽  
Magnetic Transport ◽  
Grain Surface

Nano-dimensional effects on electronic-, magneto-transport properties of granular ferromagnetic insulating (FMI) Pr0.8Sr0.2MnO3 (PSMO) manganite (down to 40 nm) have been investigated in details. From the electronic and magnetic transport properties, a metallic state has been observed in grain size modulation by suppressing the ferromagnetic insulating state of PSMO bulk system. A distinct metal-insulator transition (MIT) temperature around 150 K has been observed in all nanometric samples. The observed insulator to metallic transition with size reduction can be explained with surface polaron breaking model, originates due to enhanced grain surface disorder. This proposed phenomenological polaronic model plays a significant role to understand the polaronic destabilization process on the grain surface regime of these phase separated nano-mangnatie systems. Temperature dependent resistivity and magnetoresistance data in presence of external magnetic fields are investigated in details with various compatible models.

Magnetic transport properties of semimagnetic semiconductor Hg1−x−yCrxMnySe

1998 ◽  
Vol 24 (9) ◽  
pp. 639-642 ◽  
Author(s):  
V. D. Prozorovskiı̆ ◽  
I. Yu. Reshidova ◽  
A. I. Puzynya ◽  
S. Yu. Paranchich
Keyword(s):  
Transport Properties ◽  
Magnetic Transport

scholarly journals Long- and short-range structures of Ti1−xHfxNi1.0/1.1Sn half-Heusler compounds and their electric transport properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (21) ◽  
pp. 3330-3342 ◽  
Author(s):  
Matylda N. Guzik ◽  
Matthias Schrade ◽  
Raluca Tofan ◽  
Patricia A. Carvalho ◽  
Kristian Berland ◽  
...  
Keyword(s):  
Experimental Study ◽  
Transport Properties ◽  
Short Range ◽  
Heusler Compounds ◽  
Electric Transport

Experimental study reveals the apparent ordered arrangement of excess Ni at the nominally vacant sublattice in thermoelectric Ti1−xHfxNi1.0/1.1Sn half-Heusler compounds.

Effect of Cr substitution on the magnetic and magnetic-transport properties of Fe2Mn1-xCrxSi alloys

2014 ◽  
Vol 115 (17) ◽  
pp. 17C303 ◽  
Author(s):  
Lakhan Pal ◽  
Sachin Gupta ◽  
K. G. Suresh ◽  
A. K. Nigam
Keyword(s):  
Transport Properties ◽  
Cr Substitution ◽  
Magnetic Transport

scholarly journals Effect of pressure on the magnetic, transport, and thermal-transport properties of the electron-doped manganiteCaMn1−xSbxO3

2011 ◽  
Vol 83 (5) ◽  
Author(s):  
Yuh Murano ◽  
Michiaki Matsukawa ◽  
Syuya Ohuchi ◽  
Satoru Kobayashi ◽  
Shigeki Nimori ◽  
...  
Keyword(s):  
Transport Properties ◽  
Thermal Transport ◽  
Effect Of Pressure ◽  
Thermal Transport Properties ◽  
Magnetic Transport

Band Structures and Transport Properties of Half-Heusler Compounds NbMSb (M = Fe, Ru)

2016 ◽  
Vol 847 ◽  
pp. 171-176
Author(s):  
Teng Fang ◽  
Shu Qi Zheng ◽  
Hong Chen ◽  
Peng Zhang
Keyword(s):  
Transport Properties ◽  
Valence Band Maximum ◽  
Thermoelectric Generators ◽  
Heusler Compounds ◽  
Boltzmann Transport ◽  
Band Structures ◽  
Seebeck Coefficients ◽  
Electrical Conductivities ◽  
Scattering Time ◽  
P Type

The band structures and transport properties of Half-Heusler compounds NbFeSb and NbRuSb were studied using ab initio calculations and the Boltzmann transport equation with constant scattering time approximation (CSTA). Both compounds were identified as good p-type thermoelectric materials because of the combination of heavy and light bands in the valence band maximum (VBM). The Seebeck coefficients for NbRuSb were lower than that for NbFeSb; while the electrical conductivities for NbRuSb were little higher than that for NbFeSb. Consequently, the power factors in the p-type regimes for both compounds were similar at a given temperature. NbFeSb and NbRuSb could be efficient materials for thermoelectric generators based on the results in the present investigation.

scholarly journals Epitaxial growth and magnetic/transport properties of La0.7Sr0.3MnO3 thin films grown on SrTiO3 with optimized growth conditions

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31327-31332 ◽  
Author(s):  
K. Wang ◽  
M. H. Tang ◽  
Y. Xiong ◽  
G. Li ◽  
Y. G. Xiao ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystal ◽  
Pulsed Laser Deposition ◽  
Transport Properties ◽  
Epitaxial Growth ◽  
Pulsed Laser ◽  
Growth Conditions ◽  
Laser Deposition ◽  
Colossal Magnetoresistive ◽  
Magnetic Transport

Epitaxial growth of colossal magnetoresistive thin films of La0.7Sr0.3MnO3 (LSMO) has been achieved on TiO2-terminated (001) SrTiO3 (STO) single-crystal substrates using PLD (pulsed laser deposition).

Electrical and Magnetic Transport Properties of Nanocrystalline Fe73.5Si13.5B9Cu1Nb3 Alloy

2014 ◽  
Vol 27 (6) ◽  
pp. 1525-1530 ◽  
Author(s):  
Deen Muhammad ◽  
F. A. Khan ◽  
H. M. Farabi ◽  
M. Jubaer Alam
Keyword(s):  
Transport Properties ◽  
Magnetic Transport
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