11,123 research outputs found
Unconventional quantum Hall effect and Berry’s phase 2pi in bilayer graphene.
No full textThere are known two distinct types of the integer quantum Hall effect. One is the conventional quantum Hall effect, characteristic of two-dimensional semiconductor systems, and the other is its relativistic counterpart recently observed in graphene, where charge carriers mimic Dirac fermions characterized by Berry’s phase pi, which results in a shifted positions of Hall plateaus. Here we report a third type of the integer quantum Hall effect. Charge carriers in bilayer graphene have a parabolic energy spectrum but are chiral and exhibit Berry’s phase 2pi affecting their quantum dynamics. The Landau quantization of these fermions results in plateaus in Hall conductivity at standard integer positions but the last (zero-level) plateau is missing. The zero-level anomaly is accompanied by metallic conductivity in the limit of low concentrations and high magnetic fields, in stark contrast to the conventional, insulating behavior in this regime. The revealed chiral fermions have no known analogues and present an intriguing case for quantum-mechanical studies
S.M. Simpson Ltd. -- celebrations, Charlie Stuart's retirement
No full textBob Springer, Otto Schlenker, Mabel Hall, Cede Boyer, Fred Kitsch, and others at Charlie Stuart's retirement party
Brother Francis W. Schneider, S.M., Pronounced Dead After Heart Attack
No full textNews release announces that Brother Francis W. Schneider, S.M., was pronounced dead in his Alumni Hall room on the UD campus after experiencing a heart attack
The Sacramental Theory in John 19:26-27
No full textAbout the author: Father Theodore Koehler, S.M., of the Seminaire Marianiste at the University of Fribourg, Switzerland, studied under Father Neubert
Transport through Zero-Dimensional States in a Quantum Dot
No full textWe have studied the electron transport through zero-dimensional (0D) states. 0D states are formed when one-dimensional edge channels are confined in a quantum dot. The quantum dot is defined in a two-dimensional electron gas with a split gate technique. To allow electronic transport, connection to the dot is arranged via two quantum point contacts, which have adjustable selective transmission properties for edge channels. The 0D states show up as pronounced oscillations in the conductance (up to 40% of e2/h), when the flux enclosed by the confined edge channel is varied, either by changing the magnetic field or the gate voltage. A prerequisite for the appearance of 0D states is that the transport through the entire device is adiabatic (i.e. with conservation of quantum numbers), which will be shown to occur at high magnetic field. The experimental results are in good agreement with theory and show that in the ballistic quantum Hall regime the current is carried entirely by edge channels.
Mixed-use concert hall : insights from the Elbphilharmonie
No full textThesis: S.M. in Real Estate Development, Massachusetts Institute of Technology, Program in Real Estate Development in conjunction with the Center for Real Estate, 2018.Cataloged from PDF version of thesis.Includes bibliographical references (pages 70-73).Taking a qualitative case study approach, this thesis examines the approach in combining a concert hall with other real estate product types in the urban redevelopment context, and demonstrates that successful mixed-use development with concert hall or other cultural facilities could be a viable strategy to add both civic and commercial value for new town development. Concert halls have been used as catalysts for place making and experience creation for wide community, with a new interest in playing a key role in urban regeneration. Combining cultural facilities in mixed-use development is expected to create a win-win situation that can benefit both the cultural institutions and the developers, and both the cities and the citizens. This thesis analyzes the Elbphilharmonie in Hamburg, Germany to examine the real estate rationale for the mix of cultural and commercial uses in civic and commercial value creation, and explores the transferability of the HafenCity model defined based on the Elbphilharmonie case to China. This thesis then studies the concert hall market in China, and summarizes the Hexi New Town model and the Macau model from cases in Nanjing and Macau. A comparison of the three mixed-use cultural project models is made, and the thesis concludes with alternative points of view that worth considering and recommendations for the application of the Hexi New Town model in China.by Zhiyao Feng.S.M. in Real Estate Developmen
Christian Insight
No full textVery Rev . John A. Elbert, S.M., is Graduate Dean of Arts and Sciences, Professor of Philosophy, creator of the Interdisciplinary Seminar, former President of the University of Dayton. He is the author of a number of books
Mary and American Protestants
No full textAbout the author: Father William Cole, S.M., is Professor and director of graduate work in Theological Studies at the University of Dayton. He has long been associated with the Marian Library
Overcoming the Obstacles to Counselling Research
No full textThe author of this article, Brother Marion F. Belka, S.M., is Vice President of St. Mary\u27s University in San Antonio, Texas, and President of the National Catholic Guidance Conference
In Vivo Acticity of Bupropion at the Human Dopamine Transporter as Measured by Positron Emission Tomography
No full textArticle title: In vivo acticity of bupropion at the human dopamine transporter as measured by positron emission tomography. Reference: BPS7603 Journal title: Corresponding author: Dr. S.M. Learned-Coughlin First author: Dr. S.M. Learned-Coughlin Citation</p
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