The low-temperature transport properties of Heusler alloy Mn2CoAl

被引：20

作者：

Chen, Peng ^{[1
]}

Gao, Cunxu ^{[1
]}

Chen, Guilin ^{[1
]}

Mi, Kui ^{[1
]}

Liu, Ming ^{[2
]}

Zhang, Peng ^{[1
]}

Xue, Desheng ^{[1
]}

机构：

[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Gansu, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Microelect, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2018年 / 113卷 / 12期

基金：

中国国家自然科学基金;

关键词：

SYSTEMS; FILMS;

D O I：

10.1063/1.5046396

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial Mn2CoAl films were grown on MgO(001) substrates by molecular beam epitaxy to study the low-temperature transport properties of a spin gapless semiconductor in view of potential applications in spintronic devices based on this unique class of materials. We present the high-quality epitaxial growth, structure characterization, temperature-dependent resistivity, and magnetoresistance results of the Mn2CoAl films. Derived from these electronic transport properties, we found that the nearly magnetic-field-independent T-1/2 term originating from the electron-electron interaction effect was attributed to the resistivity behavior of the Mn2CoAl films at low temperatures. The T-1/2 -term interaction strength reveals a strong dependence on the structural disorder of the sample, which is in agreement with the disorder-enhanced three-dimensional electron-electron interaction effect. Published by AIP Publishing.

引用

页数：4

共 24 条

[1]

Altshuler B. L., 1985, ELECT ELECT INTERACT

[2] Structural and magnetic properties of epitaxial thin films of the equiatomic quaternary CoFeMnSi Heusler alloy [J].

Bainsla, Lakhan ;

Yilgin, Resul ;

Okabayashi, Jun ;

Ono, Atsuo ;

Suzuki, Kazuya ;

Mizukami, Shigemi .

PHYSICAL REVIEW B, 2017, 96 (09)

[3] Equiatomic quaternary Heusler alloys: A material perspective for spintronic applications [J].

Bainsla, Lakhan ;

Suresh, K. G. .

APPLIED PHYSICS REVIEWS, 2016, 3 (03)

[4] Origin of spin gapless semiconductor behavior in CoFeCrGa: Theory and Experiment [J].

Bainsla, Lakhan ;

Mallick, A. I. ;

Raja, M. Manivel ;

Coelho, A. A. ;

Nigam, A. K. ;

Johnson, D. D. ;

Alam, Aftab ;

Suresh, K. G. .

PHYSICAL REVIEW B, 2015, 92 (04)

[5] Spin gapless semiconducting behavior in equiatomic quaternary CoFeMnSi Heusler alloy [J].

Bainsla, Lakhan ;

Mallick, A. I. ;

Raja, M. Manivel ;

Nigam, A. K. ;

Varaprasad, B. S. D. Ch. S. ;

Takahashi, Y. K. ;

Alam, Aftab ;

Suresh, K. G. ;

Hono, K. .

PHYSICAL REVIEW B, 2015, 91 (10)

[6] Two-Channel Kondo Physics due to As Vacancies in the Layered Compound ZrAs1.58Se0.39 [J].

Cichorek, T. ;

Bochenek, L. ;

Schmidt, M. ;

Czulucki, A. ;

Auffermann, G. ;

Kniep, R. ;

Niewa, R. ;

Steglich, F. ;

Kirchner, S. .

PHYSICAL REVIEW LETTERS, 2016, 117 (10)

[7] Spin gapless semiconductor like Ti2MnAl film as a new candidate for spintronics application [J].

Feng, Wuwei ;

Fu, Xiao ;

Wan, Caihua ;

Yuan, Zhonghui ;

Han, Xiufeng ;

Nguyen Van Quang ;

Cho, Sunglae .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2015, 9 (11) :641-645

[8] "Cube-on-hexagon" orientation relationship for Fe on GaN(000(1)over-bar): The missing link in bcc/hcp epitaxy [J].

Gao, Cunxu ;

Brandt, Oliver ;

Erwin, Steven C. ;

Laehnemann, Jonas ;

Jahn, Uwe ;

Jenichen, Bernd ;

Schoenherr, Hans-Peter .

PHYSICAL REVIEW B, 2010, 82 (12)

[9] Reflection high-energy electron diffraction φ scans for in situ monitoring the heteroepitaxial growth of Fe on GaN(0001) by molecular beam epitaxy [J].

Gao, Cunxu ;

Schoenherr, Hans-Peter ;

Brandt, Oliver .

APPLIED PHYSICS LETTERS, 2010, 97 (03)

[10] Evidence for the absence of electron-electron Coulomb interaction quantum correction to the anomalous Hall effect in Co2FeSi Heusler-alloy thin films [J].

Hazra, Binoy Krishna ;

Kaul, S. N. ;

Srinath, S. ;

Raja, M. Manivel ;

Rawat, R. ;

Lakhani, Archana .

PHYSICAL REVIEW B, 2017, 96 (18)

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