TY  - JOUR
AU  - Tahir, Muhammad
AU  - Krstajić, Predrag
AU  - Vasilopoulos, Panagiotis
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2236
AB  - The recent experimental realization of high-quality WSe2 leads to the possibility of an efficient manipulation of its spin and valley degrees of freedom. Its electronic properties comprise a huge spin-orbit coupling, a direct band gap, and a strong anisotropic lifting of the degeneracy of the valley degree of freedom in a magnetic field. We evaluate its band structure and study ballistic electron transport through single and double junctions (or barriers) on monolayer WSe2 in the presence of spin M-s and valley M-v Zeeman fields and of an electric potential U. The conductance versus the field Ms or Mv decreases in a fluctuating manner. For a single junction, the spin P-s and valley P-v polarizations rise with M = M-v = 2M(s), reach a value of more than 55%, and become perfect above U approximate to 45 meV while for a double junction this change can occur for U >= 50 meV and M >= 5 meV. In certain regions of the (M, U) plane P-v becomes perfect. The conductance g(c), its spin-up and spin-down components, and both polarizations oscillate with the barrier width d. The ability to isolate various carrier degrees of freedom in WSe2 may render it a promising candidate for new spintronic and valleytronic devices.
PB  - Amer Physical Soc, College Pk
T2  - Physical Review B
T1  - Magnetic and electric control of spin- and valley-polarized transport across tunnel junctions on monolayer WSe2
VL  - 95
IS  - 23
SP  - 235402
DO  - 10.1103/PhysRevB.95.235402
ER  - 

@article{
author = "Tahir, Muhammad and Krstajić, Predrag and Vasilopoulos, Panagiotis",
year = "2017",
abstract = "The recent experimental realization of high-quality WSe2 leads to the possibility of an efficient manipulation of its spin and valley degrees of freedom. Its electronic properties comprise a huge spin-orbit coupling, a direct band gap, and a strong anisotropic lifting of the degeneracy of the valley degree of freedom in a magnetic field. We evaluate its band structure and study ballistic electron transport through single and double junctions (or barriers) on monolayer WSe2 in the presence of spin M-s and valley M-v Zeeman fields and of an electric potential U. The conductance versus the field Ms or Mv decreases in a fluctuating manner. For a single junction, the spin P-s and valley P-v polarizations rise with M = M-v = 2M(s), reach a value of more than 55%, and become perfect above U approximate to 45 meV while for a double junction this change can occur for U >= 50 meV and M >= 5 meV. In certain regions of the (M, U) plane P-v becomes perfect. The conductance g(c), its spin-up and spin-down components, and both polarizations oscillate with the barrier width d. The ability to isolate various carrier degrees of freedom in WSe2 may render it a promising candidate for new spintronic and valleytronic devices.",
publisher = "Amer Physical Soc, College Pk",
journal = "Physical Review B",
title = "Magnetic and electric control of spin- and valley-polarized transport across tunnel junctions on monolayer WSe2",
volume = "95",
number = "23",
pages = "235402",
doi = "10.1103/PhysRevB.95.235402"
}

Tahir, M., Krstajić, P.,& Vasilopoulos, P.. (2017). Magnetic and electric control of spin- and valley-polarized transport across tunnel junctions on monolayer WSe2. in Physical Review B
Amer Physical Soc, College Pk., 95(23), 235402.
https://doi.org/10.1103/PhysRevB.95.235402

Tahir M, Krstajić P, Vasilopoulos P. Magnetic and electric control of spin- and valley-polarized transport across tunnel junctions on monolayer WSe2. in Physical Review B. 2017;95(23):235402.
doi:10.1103/PhysRevB.95.235402 .

Tahir, Muhammad, Krstajić, Predrag, Vasilopoulos, Panagiotis, "Magnetic and electric control of spin- and valley-polarized transport across tunnel junctions on monolayer WSe2" in Physical Review B, 95, no. 23 (2017):235402,
https://doi.org/10.1103/PhysRevB.95.235402 . .

TY  - JOUR
AU  - Tahir, Muhammad
AU  - Krstajić, Predrag
AU  - Vasilopoulos, Panagiotis
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2146
AB  - The electronic properties of WSe2 comprise a huge spin-orbit coupling, a wide direct band gap, and especially a strong anisotropic lifting of the degeneracy of the valley degree of freedom in a magnetic field. We study ballistic electron transport through single or double junctions on monolayer WSe2 in the presence of spin M-s and valley M-v Zeeman fields and of an electric potential U. The conductance vs. the field M-s or M-v decreases in a fluctuating manner. For a single junction the spin P-s and valley P-v polarizations rise with M = M-v = 2M(s), reach a value of more than 70%, and become perfect above U approximate to 90meV while for a double junction this change can occur for U approximate to 50meV and M >= 10meV. Pv increases with U and both polarizations oscillate with the junction width. The results may render WSe2 a promising candidate for new spintronic and valleytronic devices.
PB  - Epl Association, European Physical Society, Mulhouse
T2  - Europhysics Letters
T1  - Zeeman- and electric-field control of spin- and valley-polarized transport through biased magnetic junctions on WSe2
VL  - 118
IS  - 1
DO  - 10.1209/0295-5075/118/17001
ER  - 

@article{
author = "Tahir, Muhammad and Krstajić, Predrag and Vasilopoulos, Panagiotis",
year = "2017",
abstract = "The electronic properties of WSe2 comprise a huge spin-orbit coupling, a wide direct band gap, and especially a strong anisotropic lifting of the degeneracy of the valley degree of freedom in a magnetic field. We study ballistic electron transport through single or double junctions on monolayer WSe2 in the presence of spin M-s and valley M-v Zeeman fields and of an electric potential U. The conductance vs. the field M-s or M-v decreases in a fluctuating manner. For a single junction the spin P-s and valley P-v polarizations rise with M = M-v = 2M(s), reach a value of more than 70%, and become perfect above U approximate to 90meV while for a double junction this change can occur for U approximate to 50meV and M >= 10meV. Pv increases with U and both polarizations oscillate with the junction width. The results may render WSe2 a promising candidate for new spintronic and valleytronic devices.",
publisher = "Epl Association, European Physical Society, Mulhouse",
journal = "Europhysics Letters",
title = "Zeeman- and electric-field control of spin- and valley-polarized transport through biased magnetic junctions on WSe2",
volume = "118",
number = "1",
doi = "10.1209/0295-5075/118/17001"
}

Tahir, M., Krstajić, P.,& Vasilopoulos, P.. (2017). Zeeman- and electric-field control of spin- and valley-polarized transport through biased magnetic junctions on WSe2. in Europhysics Letters
Epl Association, European Physical Society, Mulhouse., 118(1).
https://doi.org/10.1209/0295-5075/118/17001

Tahir M, Krstajić P, Vasilopoulos P. Zeeman- and electric-field control of spin- and valley-polarized transport through biased magnetic junctions on WSe2. in Europhysics Letters. 2017;118(1).
doi:10.1209/0295-5075/118/17001 .

Tahir, Muhammad, Krstajić, Predrag, Vasilopoulos, Panagiotis, "Zeeman- and electric-field control of spin- and valley-polarized transport through biased magnetic junctions on WSe2" in Europhysics Letters, 118, no. 1 (2017),
https://doi.org/10.1209/0295-5075/118/17001 . .