Prediction for room-temperature half-metallic ferromagnetism in the half-fluorinated single layers of BN and ZnO

2010 ◽  
Vol 97 (12) ◽  
pp. 122503 ◽  
Author(s):  
E. J. Kan ◽  
H. J. Xiang ◽  
F. Wu ◽  
C. Tian ◽  
C. Lee ◽  
...  
Keyword(s):  
Room Temperature ◽  
Half Metallic ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism

Room temperature half metallic ferromagnetism due to Os/Ir(5d) in double perovskites

2022 ◽  
Vol 896 ◽  
pp. 163130
Author(s):  
Qasim Mahmood ◽  
Ghazanfar Nazir ◽  
Sonia Bouzgarrou ◽  
M.S. Rashid ◽  
Eman Algrafy ◽  
...  
Keyword(s):  
Room Temperature ◽  
Double Perovskites ◽  
Half Metallic ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism

scholarly journals First principle prediction of half-metallic ferromagnetism above room temperature in half-heusler alloys

2010 ◽  
Author(s):  
Van An Dinh ◽  
Kazunori Sato ◽  
Hiroshi Katayama-Yoshida ◽  
Marília Caldas ◽  
Nelson Studart
Keyword(s):  
Room Temperature ◽  
Heusler Alloys ◽  
First Principle ◽  
Half Metallic ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism

scholarly journals Anomalous transport properties of the half-metallic ferromagnets Co 2 TiSi, Co 2 TiGe and Co 2 TiSn

2011 ◽  
Vol 369 (1951) ◽  
pp. 3588-3601 ◽  
Author(s):  
Joachim Barth ◽  
Gerhard H. Fecher ◽  
Benjamin Balke ◽  
Tanja Graf ◽  
Andrey Shkabko ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Room Temperature ◽  
Magnetic Moments ◽  
Experimental Investigations ◽  
Half Metallicity ◽  
Half Metallic ◽  
Seebeck Coefficients ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism ◽  
Curie Temperatures

In this work, the theoretical and experimental investigations of Co 2 Ti Z ( Z =Si, Ge or Sn) compounds are reported. Half-metallic ferromagnetism is predicted for all three compounds with only two bands crossing the Fermi energy in the majority channel. The magnetic moments fulfil the Slater–Pauling rule and the Curie temperatures are well above room temperature. All compounds show a metallic-like resistivity for low temperatures up to their Curie temperature, above the resistivity changes to semiconducting-like behaviour. A large negative magnetoresistance (MR) of 55 per cent is observed for Co 2 TiSn at room temperature in an applied magnetic field of μ 0 H =4 T , which is comparable to the large negative MRs of the manganites. The Seebeck coefficients are negative for all three compounds and reach their maximum values at their respective Curie temperatures and stay almost constant up to 950 K. The highest value achieved is −52 μVK −1 for Co 2 TiSn, which is large for a metal. The combination of half-metallicity and the constant large Seebeck coefficient over a wide temperature range makes these compounds interesting materials for thermoelectric applications and further spincaloric investigations.

Investigation of half-metallic ferromagnetism in Heusler compounds Co2VZ (Z = Ga, Ge, As, Se)

2017 ◽  
Vol 442 ◽  
pp. 80-86 ◽  
Author(s):  
Jiajia Han ◽  
Zhengwei Wang ◽  
Weiwei Xu ◽  
Cuiping Wang ◽  
Xingjun Liu
Keyword(s):  
Heusler Compounds ◽  
Half Metallic ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism
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