Dr. Peter Dowben
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Academic Career Length
34Years (1993-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications13 February 2017 in ACS Nano
Journal Article
SBSumit Beniwal
Sumit BeniwalJHJames Hooper
James HooperDMDaniel P. Miller
Daniel P. MillerPCPaulo S. Costa
Paulo S. Costa
GCGang Chen
Gang Chen
AEAxel Enders
Axel Enders +4
A strategy to synthesize a 2D graphenic but ternary monolayer containing atoms of carbon, nitrogen, and boron, h-BCN, is presented. The synthesis utilizes bis-BN cyclohexane, B2N2C2H12, as a precursor molecule and relies on thermally induced dehydrogenation of the precursor molecules and the formation of an epitaxial monolayer on Ir(111) through covalent bond formation. The lattice mismatch between the film and substrate causes a strain-driven periodic buckling of the film. The structure of the film and its corrugated morphology is discussed based on comprehensive data from molecular-resolved scanning tunneling microscopy imaging, X-ray photoelectron spectroscopy, low-energy electron diffraction, and density functional theory. First-principles calculations further predict a direct electronic band gap that is intermediate between gapless graphene and insulating h-BN.
20 April 2015 in Journal of Physics: Condensed Matter
Journal Article
DLDuy Le
Duy LeABAlexei Barinov
Alexei BarinovEPEdwin Preciado
Edwin Preciado
MIMiguel Isarraraz
Miguel Isarraraz
ITIori Tanabe
Iori Tanabe
Peter Dowben +4
We used angle-resolved photoemission spectroscopy (ARPES) to map out the band structure of single-layer WSe 2 . The splitting of the top of the valence band because of spin–orbit coupling is 513 ± 10 meV, in general agreement with theoretical predictions and in the same range as that of bulk WSe 2 . Overall, our density functional theory (DFT) calculations of the band structure are in excellent agreement with the ARPES results. We have verified that the few discrepancies between theory and experiment are not due to the effect of strain. The differences between the DFT-calculated band structure using local density approximation (LDA) and that using the generalized gradient approximation (GGA), for single-layer WSe 2 , are caused mainly by differences in the respective charge densities.
23 February 2011 in Physical Review Letters
Journal Article
NWNing Wu
Ning WuXHXi He
Xi HeAWAleksander L Wysocki
Aleksander L WysockiULUday Lanke
Uday Lanke
TKTakashi Komesu
Takashi KomesuPeter Dowben +2
We report the direct observation of surface magnetization domains of the magnetoelectric using photoemission electron microscopy with magnetic circular dichroism contrast and magnetic force microscopy. The domain pattern is strongly affected by the applied electric field conditions. Zero-field cooling results in an equal representation of the two domain types, while electric-field cooling selects one dominant domain type. These observations confirm the existence of surface magnetization, required by symmetry in magnetoelectric antiferromagnets.
30 November 2018 in ACS Nano
Journal Article
ALAlexey Lipatov
Alexey LipatovMLMichael J. Loes
Michael J. LoesHLHaidong Lu
Haidong Lu
JDJun Dai
Jun DaiPPPiotr Patoka
Piotr Patoka
ASAlexander Sinitskii
Alexander Sinitskii +10
3 December 2013 in Chemical Communications
Journal Article
XZXin Zhang
Xin ZhangTPTatiana Palamarciuc
Tatiana Palamarciuc
JLJean-François Létard
Jean-François LétardPRPatrick Rosa
Patrick RosaELEduardo Vega Lozada
Eduardo Vega Lozada
Peter Dowben +3
The spin state of [Fe(H2B(pz)2)2(bipy)] thin films is mediated by changes in the electric field at the interface of organic ferroelectric polyvinylidene fluoride with trifluoroethylene (PVDF–TrFE). Signatures of the molecular crossover transition are evident in changes in the unoccupied states and the related shift from diamagnetic to paramagnetic characteristics. This may point the way to the molecular magneto-electric effect on devices.
30 April 2015 in Nano Letters
Journal Article
ANAriana Nguyen
Ariana Nguyen
PSPankaj Sharma
Pankaj SharmaTSThomas Scott
Thomas Scott
EPEdwin Preciado
Edwin Preciado
VKVelveth Klee
Velveth Klee
Peter Dowben +8
About Me
Peter A. Dowben is a Charles Bessey Professor of Physics at the University of Nebraska (UNL). From 1984 to 1990, he was Assistant Professor of Physics at Syracuse University and was promoted to Associate Professor in 1990. He moved to the University of Nebraska in 1993 and was promoted to Professor of Physics in 1995, Research Professor of Chemistry in 1994, and a Charles Bessey Professor in 2002. He performed his post-doctoral research as a scientific staff member at the Fritz Haber Institute in Berlin, Germany. He received his Ph.D. in Physics from the University of Cambridge. He is also a Fellow of the American Physical Society, a Fellow of the Institute of Physics, a Fellow of the Royal Society of Chemistry, and a Fellow of the American Vacuum Society, as well as a twice recipient of UNL’s Engineering and Technology Multidisciplinary Research Award. He has 680 publications with 18230 citations and an h-index of 58 (Scopus, 11 November 2023).