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Terahertz conductivity of twisted bilayer graphene

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Terahertz conductivity of twisted bilayer graphene
นักวิจัย : Zou, Xingquan , Shang, Jingzhi , Leaw, Jianing , Luo, Zhiqiang , Luo, Liyan , Chan, La-o-vorakiat , Cheng, Liang , Cheong, Siew Ann , Su, Haibin , Zhu, Jian-Xin , Liu, Yanpeng , Loh, Kian Ping , Castro Neto, A. H. , Yu, Ting , Chia, Elbert E. M.
คำค้น : DRNTU::Science::Physics::Atomic physics.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Zou, X., Shang, J., Leaw, J., Luo, Z., Luo, L., Chan, L. V., et al. (2013). Terahertz conductivity of twisted bilayer graphene. Physical review letters, 110(6). , http://hdl.handle.net/10220/9904 , http://dx.doi.org/10.1103/PhysRevLett.110.067401
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Physical review letters
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Using terahertz time-domain spectroscopy, the real part of optical conductivity [ σ1(ω)] of twisted bilayer graphene was obtained at different temperatures (10–300 K) in the frequency range 0.3–3 THz. On top of a Drude-like response, we see a strong peak in σ1(ω) at ~2.7 THz. We analyze the overall Drude-like response using a disorder-dependent (unitary scattering) model, then attribute the peak at 2.7 THz to an enhanced density of states at that energy, which is caused by the presence of a van Hove singularity arising from a commensurate twisting of the two graphene layers.

NRF (Natl Research Foundation, S’pore)

MOE (Min. of Education, S’pore)

บรรณานุกรม :
Zou, Xingquan , Shang, Jingzhi , Leaw, Jianing , Luo, Zhiqiang , Luo, Liyan , Chan, La-o-vorakiat , Cheng, Liang , Cheong, Siew Ann , Su, Haibin , Zhu, Jian-Xin , Liu, Yanpeng , Loh, Kian Ping , Castro Neto, A. H. , Yu, Ting , Chia, Elbert E. M. . (2556). Terahertz conductivity of twisted bilayer graphene.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Zou, Xingquan , Shang, Jingzhi , Leaw, Jianing , Luo, Zhiqiang , Luo, Liyan , Chan, La-o-vorakiat , Cheng, Liang , Cheong, Siew Ann , Su, Haibin , Zhu, Jian-Xin , Liu, Yanpeng , Loh, Kian Ping , Castro Neto, A. H. , Yu, Ting , Chia, Elbert E. M. . 2556. "Terahertz conductivity of twisted bilayer graphene".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Zou, Xingquan , Shang, Jingzhi , Leaw, Jianing , Luo, Zhiqiang , Luo, Liyan , Chan, La-o-vorakiat , Cheng, Liang , Cheong, Siew Ann , Su, Haibin , Zhu, Jian-Xin , Liu, Yanpeng , Loh, Kian Ping , Castro Neto, A. H. , Yu, Ting , Chia, Elbert E. M. . "Terahertz conductivity of twisted bilayer graphene."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Zou, Xingquan , Shang, Jingzhi , Leaw, Jianing , Luo, Zhiqiang , Luo, Liyan , Chan, La-o-vorakiat , Cheng, Liang , Cheong, Siew Ann , Su, Haibin , Zhu, Jian-Xin , Liu, Yanpeng , Loh, Kian Ping , Castro Neto, A. H. , Yu, Ting , Chia, Elbert E. M. . Terahertz conductivity of twisted bilayer graphene. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.