Spin Seebeck effect in the antiferromagnet nickel oxide at room temperature

2017 ◽  
Vol 111 (17) ◽  
pp. 172405 ◽  
Author(s):  
J. Holanda ◽  
D. S. Maior ◽  
O. Alves Santos ◽  
L. H. Vilela-Leão ◽  
J. B. S. Mendes ◽  
...  
2019 ◽  
Vol 99 (9) ◽  
Author(s):  
P. R. T. Ribeiro ◽  
F. L. A. Machado ◽  
M. Gamino ◽  
A. Azevedo ◽  
S. M. Rezende

2018 ◽  
Vol 51 (23) ◽  
pp. 234003 ◽  
Author(s):  
Timo B Noack ◽  
Halyna Yu Musiienko-Shmarova ◽  
Thomas Langner ◽  
Frank Heussner ◽  
Viktor Lauer ◽  
...  

2010 ◽  
Vol 200 (6) ◽  
pp. 062020 ◽  
Author(s):  
T Ota ◽  
K Uchida ◽  
Y Kitamura ◽  
T Yoshino ◽  
H Nakayama ◽  
...  

2011 ◽  
Vol 1329 ◽  
Author(s):  
Bahadir Kucukgok ◽  
Liqin Su ◽  
Elisa N. Hurwitz ◽  
Andrew Melton ◽  
Liu Zhiqiang ◽  
...  

ABSTRACTGaN-based dilute magnetic semiconductors (DMS) have recently been investigated for use in spintronic devices. In particular, Gd-doped GaN has shown very promising room temperature ferromagnetic behavior and potential for use in spintronics applications. III-Nitride materials have recently had their thermoelectric properties investigated; however this work has not been extended to Nitride-based DMS. Understanding the spin-calorimetric characteristics of GaN-based DMS is important to the successful development of low-power spintronic devices. In this paper the Seebeck and spin-Seebeck effect in MOCVD grown Gd-doped GaN (Gd: GaN) are investigated.


AIP Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 055906 ◽  
Author(s):  
R. Das ◽  
V. Kalappattil ◽  
R. Geng ◽  
H. Luong ◽  
M. Pham ◽  
...  

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
R. Ramos ◽  
T. Hioki ◽  
Y. Hashimoto ◽  
T. Kikkawa ◽  
P. Frey ◽  
...  

AbstractResonant enhancement of spin Seebeck effect (SSE) due to phonons was recently discovered in Y$${}_{3}$$3Fe$${}_{5}$$5O$${}_{12}$$12 (YIG). This effect is explained by hybridization between the magnon and phonon dispersions. However, this effect was observed at low temperatures and high magnetic fields, limiting the scope for applications. Here we report observation of phonon-resonant enhancement of SSE at room temperature and low magnetic field. We observe in Lu$${}_{2}$$2BiFe$${}_{4}$$4GaO$${}_{12}$$12 an enhancement 700% greater than that in a YIG film and at very low magnetic fields around 10$${}^{-1}$$−1 T, almost one order of magnitude lower than that of YIG. The result can be explained by the change in the magnon dispersion induced by magnetic compensation due to the presence of non-magnetic ion substitutions. Our study provides a way to tune the magnon response in a crystal by chemical doping, with potential applications for spintronic devices.


Author(s):  
Kumar Haunsbhavi ◽  
Karuppiah Deva Arun Kumar ◽  
Paolo Mele ◽  
Omar M. Aldossary ◽  
Mohd Ubaidullah ◽  
...  

2021 ◽  
Vol 5 (7) ◽  
Author(s):  
Víctor H. Ortiz ◽  
Michael J. Gomez ◽  
Yawen Liu ◽  
Mohammed Aldosary ◽  
Jing Shi ◽  
...  

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