Kondo blockade due to quantum interference in single-molecule junctions

Autor: Andrew K. Mitchell, Kim G. L. Pedersen, Per Hedegård, Jens Paaske

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)

Exploring the interplay of quantum effects enriches the scientific and technological understanding in nanoscale devices. The authors find that two apparently different quantum effects, quantum interference and the Kondo effect, can be unified to desc

Externí odkaz: https://doaj.org/article/949cbba4572f45de88b2d851f68364cd

Current-induced runaway vibrations in dehydrogenated graphene nanoribbons

Autor: Rasmus Bjerregaard Christensen, Jing-Tao Lü, Per Hedegård, Mads Brandbyge

Publikováno v: Beilstein Journal of Nanotechnology, Vol 7, Iss 1, Pp 68-74 (2016)

We employ a semi-classical Langevin approach to study current-induced atomic dynamics in a partially dehydrogenated armchair graphene nanoribbon. All parameters are obtained from density functional theory. The dehydrogenated carbon dimers behave as e

Externí odkaz: https://doaj.org/article/4ba5de8caeeb4ee3a5201155b93da4cc

Observation of Biradical Spin Coupling through Hydrogen Bonds

Autor: Yang He, Na Li, Ivano E. Castelli, Ruoning Li, Yajie Zhang, Xue Zhang, Chao Li, Bingwu Wang, Song Gao, Lianmao Peng, Shimin Hou, Ziyong Shen, Jing-Tao Lü, Kai Wu, Per Hedegård, Yongfeng Wang

Publikováno v: He, Y, Li, N, Castelli, I E, Li, R, Zhang, Y, Zhang, X, Li, C, Wang, B, Gao, S, Peng, L, Hou, S, Shen, Z, Lü, J-T, Wu, K, Hedegård, P & Wang, Y 2022, ' Observation of Biradical Spin Coupling through Hydrogen Bonds ', Physical Review Letters, vol. 128, no. 23, 236401 . https://doi.org/10.1103/PhysRevLett.128.236401
He, Y, Li, N, Castelli, I E, Li, R, Zhang, Y, Zhang, X, Li, C, Wang, B, Gao, S, Peng, L, Hou, S, Shen, Z, Lu, J-T, Wu, K, Hedegard, P & Wang, Y 2022, ' Observation of Biradical Spin Coupling through Hydrogen Bonds ', Physical Review Letters, vol. 128, no. 23, 236401 . https://doi.org/10.1103/PhysRevLett.128.236401

Investigation of intermolecular electron spin interaction is of fundamental importance in both science and technology.Here, radical pairs of all-trans retinoic acid molecules on Au(111) are created using an ultra-low temperature scanning tunneling mi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::813c0266f12b9541cd81a6bac5135a9b
https://doi.org/10.1103/physrevlett.128.236401

Current-induced dynamics in carbon atomic contacts

Autor: Jing-Tao Lü, Tue Gunst, Per Hedegård, Mads Brandbyge

Publikováno v: Beilstein Journal of Nanotechnology, Vol 2, Iss 1, Pp 814-823 (2011)

Background: The effect of electric current on the motion of atoms still poses many questions, and several mechanisms are at play. Recently there has been focus on the importance of the current-induced nonconservative forces (NC) and Berry-phase deriv

Externí odkaz: https://doaj.org/article/3d82efe7dae14af5bc28c2982bd0c253

Theory of Chirality Induced Spin Selectivity: Progress and Challenges

Autor: Ferdinand Evers, Amnon Aharony, Nir Bar‐Gill, Ora Entin‐Wohlman, Per Hedegård, Oded Hod, Pavel Jelinek, Grzegorz Kamieniarz, Mikhail Lemeshko, Karen Michaeli, Vladimiro Mujica, Ron Naaman, Yossi Paltiel, Sivan Refaely‐Abramson, Oren Tal, Jos Thijssen, Michael Thoss, Jan M. van Ruitenbeek, Latha Venkataraman, David H. Waldeck, Binghai Yan, Leeor Kronik

Publikováno v: Evers, F, Aharony, A, Bar-Gill, N, Entin-Wohlman, O, Hedegård, P, Hod, O, Jelinek, P, Kamieniarz, G, Lemeshko, M, Michaeli, K, Mujica, V, Naaman, R, Paltiel, Y, Refaely-Abramson, S, Tal, O, Thijssen, J, Thoss, M, van Ruitenbeek, J M, Venkataraman, L, Waldeck, D H, Yan, B & Kronik, L 2022, ' Theory of Chirality Induced Spin Selectivity : Progress and Challenges ', Advanced Materials, vol. 34, no. 13, 2106629 . https://doi.org/10.1002/adma.202106629
Advanced Materials, 34(13):2106629

A critical overview of the theory of the chirality-induced spin selectivity (CISS) effect, that is, phenomena in which the chirality of molecular species imparts significant spin selectivity to various electron processes, is provided. Based on discus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5fceac68701dd0be225757c42f30217