Determining Curie temperature of (Ga,Mn)As samples based on electrical transport measurements: Low Curie temperature case.
(2016) In Applied Physics Letters 108(24). p.1-4- Abstract
- In this paper, we show that the widely accepted method of the determination of Curie temperature (Tc) in (Ga,Mn)As samples, based on the position of the peak in the temperature derivative of the resistivity, completely fails in the case of non-metallic and low-TC unannealed samples. In this case, we propose an alternative method, also based on electric transport measurements, which exploits temperature dependence of the second derivative of the resistivity upon magnetic field.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b7e69fed-2276-43dc-9ed9-a00b56844996
- author
- Kwiatkowski, Adam ; Gryglas-Borysiewicz, Marta ; Juszynski, Piotr ; Przybytek, Jacek ; Sawicki, Maciej ; Sadowski, Janusz LU ; Wasik, Dariusz and Baj, Michal
- organization
- publishing date
- 2016-06-14
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- dilute ferromagnetic semiconductors, molecular beam epitaxy
- in
- Applied Physics Letters
- volume
- 108
- issue
- 24
- article number
- 242103
- pages
- 4 pages
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:84975031783
- wos:000379037200028
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4953628
- language
- English
- LU publication?
- yes
- id
- b7e69fed-2276-43dc-9ed9-a00b56844996
- date added to LUP
- 2016-06-18 16:22:38
- date last changed
- 2023-03-23 10:09:06
@article{b7e69fed-2276-43dc-9ed9-a00b56844996, abstract = {{In this paper, we show that the widely accepted method of the determination of Curie temperature (Tc) in (Ga,Mn)As samples, based on the position of the peak in the temperature derivative of the resistivity, completely fails in the case of non-metallic and low-TC unannealed samples. In this case, we propose an alternative method, also based on electric transport measurements, which exploits temperature dependence of the second derivative of the resistivity upon magnetic field.}}, author = {{Kwiatkowski, Adam and Gryglas-Borysiewicz, Marta and Juszynski, Piotr and Przybytek, Jacek and Sawicki, Maciej and Sadowski, Janusz and Wasik, Dariusz and Baj, Michal}}, issn = {{0003-6951}}, keywords = {{dilute ferromagnetic semiconductors, molecular beam epitaxy}}, language = {{eng}}, month = {{06}}, number = {{24}}, pages = {{1--4}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Letters}}, title = {{Determining Curie temperature of (Ga,Mn)As samples based on electrical transport measurements: Low Curie temperature case.}}, url = {{http://dx.doi.org/10.1063/1.4953628}}, doi = {{10.1063/1.4953628}}, volume = {{108}}, year = {{2016}}, }