Results overview: Found 4 records in 0.02 seconds.
Articles, 4 records found
Articles 4 records found  
1.
5 p, 656.4 KB Have mysterious topological valley currents been observed in graphene superlattices? / Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Power, Stephen R. (Trinity College Dublin. School of Physics) ; Nikolić, Branislav K. (University of Delaware. Department of Physics and Astronomy) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Jauho, Antti-Pekka (Technical University of Denmark. Center for Nanostructured Graphene)
We provide a critical discussion concerning the claim of topological valley currents, driven by a global Berry curvature and valley Hall effect proposed in recent literature. After pointing out a major inconsistency of the theoretical scenario proposed to interpret giant nonlocal resistance, we discuss various possible alternative explanations and open directions of research to solve the mystery of nonlocal transport in graphene superlattices.
2022 - 10.1088/2515-7639/ac452a
JPhys materials, Vol. 5, issue 2 (April 2022) , art. 21001  
2.
15 p, 1.7 MB Deciphering the origin of nonlocal resistance in multiterminal graphene on hexagonal-boron-nitride with ab initio quantum transport : fermi surface edge currents rather than Fermi sea topological valley currents / Marmolejo Tejada, J. M. (University of Delaware. Department of Physics and Astronomy) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Petrović, M. D. (University of Delaware. Department of Mathematical Sciences) ; Chang, P-H (University of Nebraska Lincoln. Department of Physics and Astronomy) ; Sheng, X-L (University of Delaware. Department of Mathematical Sciences) ; Cresti, Alessandro (Université Grenoble Alpes) ; Plecháč, P. (University of Delaware. Department of Mathematical Sciences) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Nikolić, B. K. (University of Delaware. Department of Physics and Astronomy)
2018 - 10.1088/2515-7639/aad585
JPhys materials, Vol. 1, Núm. 1 (September 2018) , art. 015006  
3.
81 p, 4.0 MB Charge, spin and valley Hall effects in disordered grapheme / Cresti, Alessandro (Université Grenoble Alpes) ; Nikolíc, B. K. (University of Delaware. Department of Physics and Astronomy) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
The discovery of the integer quantum Hall effect in the early eighties of the last century, with highly precise quantization values for the Hall conductance in multiples of e2/h, has been the first fascinating manifestation of the topological state of matter driven by magnetic field and disorder, and related to the formation of non-dissipative current flow. [...]
2016 - 10.1393/ncr/i2016-10130-6
Rivista del nuovo cimento, Vol. 39, issue 12 (December 2016) , p. 587-667  
4.
7 p, 2.3 MB Spin hall effect and origins of nonlocal Resistance in adatom-decorated graphene / Dinh, Van Tuan (Institut Català de Nanociència i Nanotecnologia) ; Marmolejo Tejada, J. M. (University of Delaware. Department of Physics and Astronomy) ; Waintal, Xavier (Université Grenoble Alpes) ; Nikolić, B. K. (University of Delaware. Department of Physics and Astronomy) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Recent experiments reporting an unexpectedly large spin Hall effect (SHE) in graphene decorated with adatoms have raised a fierce controversy. We apply numerically exact Kubo and Landauer-Büttiker formulas to realistic models of gold-decorated disordered graphene (including adatom clustering) to obtain the spin Hall conductivity and spin Hall angle, as well as the nonlocal resistance as a quantity accessible to experiments. [...]
2016 - 10.1103/PhysRevLett.117.176602
Physical review letters, Vol. 117, issue 17 (Oct. 2016) , p. 176602  

See also: similar author names
3 Nikolić, B. K.
1 Nikolić, Branislav K.
3 Nikolíc, B. K.
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