Dennis Valbjørn Christensen - Section for Functional Oxides

Infrared ellipsometry study of the confined electrons in a high-mobility γ-Al2O3/SrTiO3 heterostructure

Yazdi-Rizi, M. ; Marsik, P. ; Mallett, B. P. P. ; Dubroka, A. ; Christensen, Dennis Valbjørn ; Chen, Yunzhong ; Pryds, Nini ; Bernhard, C.
in: EPL, vol: 113

Type: Journal article (Peer reviewed)

Status: Published | Year: 2016 | DOI: https://doi.org/10.1209/0295-5075/113/47005

New Insights into the Creation of High-Mobility Two-Dimensional Electron Gas at Oxide Interfaces: Control of Interfacial Redox Reactions by an Electron Sink

Chen, Yunzhong ; Green, R.J. ; Trier, Felix ; Christensen, Dennis Valbjørn ; Sutarto, R. ; He, F. ; von Soosten, Merlin ; Zhang, Y. ; Linderoth, Søren ; Pryds, Nini
Presented at: 23rd International Workshop on Oxide Electronics

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2016

Quantization of Hall Resistance at the Metallic Interface between an Oxide Insulator and SrTiO₃

Trier, Felix ; Prawiroatmodjo, Guenevere E. D. K. ; Zhong, Zhicheng ; Christensen, Dennis Valbjørn ; von Soosten, Merlin ; Bhowmik, Arghya ; García Lastra, Juan Maria ; Chen, Yunzhong ; Jespersen, Thomas Sand ; Pryds, Nini
in: Physical Review Letters, vol: 117

Type: Journal article (Peer reviewed)

Status: Published | Year: 2016 | DOI: https://doi.org/10.1103/PhysRevLett.117.096804

Scandium-doped zinc cadmium oxide as a new stable n-type oxide thermoelectric material

Han, Li ; Christensen, Dennis Valbjørn ; Bhowmik, Arghya ; Simonsen, Søren Bredmose ; Le, Thanh Hung ; Abdellahi, Ebtisam ; Chen, Y. Z. ; Van Nong, Ngo ; Linderoth, Søren ; Pryds, Nini
in: Journal of Materials Chemistry A, vol: 4, issue: 31, pages: 12221-12231

Type: Journal article (Peer reviewed)

Status: Published | Year: 2016 | DOI: https://doi.org/10.1039/C6TA03126A

Silicon doped InP as an alternative plasmonic material for mid-infrared

Panah, Mohammad Esmail Aryaee ; Han, Li ; Christensen, Dennis Valbjørn ; Pryds, Nini ; Lavrinenko, Andrei ; Semenova, Elizaveta
part of: Proceedings of 41st International Conference on Infrared, Millimeter and Terahertz Waves, 2016
Presented at: 2016 International Conference on Infrared, Millimeter and Terahertz Waves

Type: Article in proceedings (Peer reviewed)

Status: Published | Year: 2016 | DOI: https://doi.org/10.1109/IRMMW-THz.2016.7758994

Charge transfer induced modulation doping of two-dimensional electron gas at complex oxide interfaces

Chen, Yunzhong ; Trier, Felix ; Christensen, Dennis Valbjørn ; Linderoth, Søren ; Pryds, Nini
Presented at: TO-BE Spring Meeting 2015

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2015

Creation of High Mobility Two-Dimensional Electron Gases via Strain Induced Polarization at an Otherwise Nonpolar Complex Oxide Interface

Chen, Yunzhong ; Trier, Felix ; Kasama, Takeshi ; Christensen, Dennis Valbjørn ; Bovet, Nicolas Emile ; Balogh, Zoltan Imre ; Han, Li ; Thydén, Karl Tor Sune ; Zhang, Wei ; Yazdi, Sadegh ; Norby, Poul ; Pryds, Nini ; Linderoth, Søren
in: Nano Letters, vol: 15, issue: 3, pages: 1849–1854

Type: Journal article (Peer reviewed)

Status: Published | Year: 2015 | DOI: https://doi.org/10.1021/nl504622w

Extreme mobility enhancement of two-dimensional electron gases at oxide interfaces via charge transfer induced modulation doping

Chen, Yunzhong ; Trier, Felix ; Wijnands, T. ; Green, R. J. ; Gauquelin, N. ; Egoavil, R. ; Christensen, Dennis Valbjørn ; Koster, G. ; Huijben, M. ; Bovet, N. ; Macke, S. ; He, F. ; Sutarto, R. ; Andersen, Niels Hessel ; Sulpizio, J. A. ; Honig, M. ; Prawiroatmodjo, G. E. D. K. ; Jespersen, T. S. ; Linderoth, Søren ; Ilani, S. ; Verbeeck, Jo ; Van Tendeloo, G. ; Rijnders, Guus ; Sawatzky, G. A. ; Pryds, Nini
in: Nature Materials, vol: 14, issue: 8, pages: 801-806

Type: Journal article (Peer reviewed)

Status: E-pub ahead of print | Year: 2015 | DOI: https://doi.org/10.1038/nmat4303

Extreme mobility enhancement of two-dimensional electron gases at oxide interfaces via charge transfer induced modulation doping

Chen, Yunzhong ; Trier, Felix ; Wijnands, T. ; Green, R. J. ; Gauquelin, N. ; Egoavil, R. ; Christensen, Dennis Valbjørn ; Koster, G. ; Huijben, M. ; Bovet, N. ; Macke, S. ; He, F. ; Sutarto, R. ; Sulpizio, J. A. ; Honig, M. ; Prawiroatmodjo, G. E. D. K. ; Jespersen, T. S. ; Linderoth, Søren ; Ilani, S. ; Verbeeck, Jo ; Van Tendeloo, G. ; Rijnders, Guus ; Sawatzky, G. A. ; Pryds, Nini
Presented at: 22nd International Workshop on Oxide Electronics

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2015

Extreme mobility enhancement of two-dimensional electron gases at oxide interfaces via charge transfer induced modulation doping

Chen, Yunzhong ; Trier, Felix ; Wijnands, T. ; Green, R. J. ; Gauquelin, N. ; Egoavil, R. ; Christensen, Dennis Valbjørn ; Koster, G. ; Huijben, M. ; Bovet, N. ; Macke, S. ; He, F. ; Sutarto, R. ; Sulpizio, J. A. ; Honig, M. ; Prawiroatmodjo, G. E. D. K. ; Jespersen, T. S. ; Linderoth, Søren ; Ilani, S. ; Verbeeck, Jo ; Van Tendeloo, G. ; Rijnders, Guus ; Sawatzky, G. A. ; Pryds, Nini
Presented at: E-MRS 2015 Fall meeting

Type: Poster

Status: Published | Year: 2015

Patterning of high mobility electron gases at complex oxide interfaces

Trier, Felix ; Prawiroatmodjo, G. E. D. K. ; von Soosten, Merlin ; Christensen, Dennis Valbjørn ; Jespersen, T. S. ; Chen, Yunzhong ; Pryds, Nini
in: Applied Physics Letters, vol: 107

Type: Journal article (Peer reviewed)

Status: Published | Year: 2015 | DOI: https://doi.org/10.1063/1.4935553

Analysis of the internal heat losses in a thermoelectric generator

Bjørk, Rasmus ; Christensen, Dennis Valbjørn ; Eriksen, Dan ; Pryds, Nini
in: International Journal of Thermal Sciences, vol: 85, pages: 12-20

Type: Journal article (Peer reviewed)

Status: Published | Year: 2014 | DOI: https://doi.org/10.1016/j.ijthermalsci.2014.06.003

Room Temperature Creation of High Mobility Two-Dimensional Electron Gases at Complex Oxide Interfaces

Chen, Yunzhong ; Christensen, Dennis Valbjørn ; Trier, Felix ; Kasama, Takeshi ; Yazdi, Sadegh ; Linderoth, Søren ; Pryds, Nini
Presented at: 21st International Workshop on Oxide Electronics

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2014

Room Temperature Epitaxial Growth of Complex Oxide Interfaces with High Mobility Two-Dimensional Electron Gases

Chen, Yunzhong ; Christensen, Dennis Valbjørn ; Trier, Felix ; Kasama, Takeshi ; Yazdi, Sadegh ; Linderoth, Søren ; Pryds, Nini
Presented at: 1st Scientific Meeting of the TOBE Action

Type: Poster (Peer reviewed)

Status: Published | Year: 2014

Towards high efficiency segmented thermoelectric unicouples

Pham, Hoang Ngan ; Christensen, Dennis Valbjørn ; Snyder, Gerald Jeffrey ; Le, Thanh Hung ; Linderoth, Søren ; Van Nong, Ngo ; Pryds, Nini
in: Physica Status Solidi. A: Applications and Materials Science (Online), vol: 211, issue: 1, pages: 9-17

Type: Journal article (Peer reviewed)

Status: Published | Year: 2014 | DOI: https://doi.org/10.1002/pssa.201330155

Transport Properties of the γ-Al₂O₃/SrTiO₃ Heterostructure

Christensen, Dennis Valbjørn ; Chen, Yunzhong ; Smith, Anders ; Pryds, Nini
Presented at: 21st International Workshop on Oxide Electronics

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2014

A high-mobility two-dimensional electron gas at the spinel/perovskite interface of γ-Al₂O₃/SrTiO₃

Chen, Yunzhong ; Bovet, N. ; Trier, Felix ; Christensen, Dennis ; Qu, F.M. ; Andersen, Niels Hessel ; Kasama, Takeshi ; Zhang, Wei ; Giraud, R. ; Dufouleur, J. ; Jespersen, T.S. ; Sun, J.R. ; Smith, Anders ; Nygård, J. ; Lu, L. ; Büchner, B. ; Shen, B.G. ; Linderoth, Søren ; Pryds, Nini
in: Nature Communications, vol: 4

Type: Journal article (Peer reviewed)

Status: Published | Year: 2013 | DOI: https://doi.org/10.1038/ncomms2394

A high-mobility two-dimensional electron gas at the spinel/perovskite interface of γ-Al₂O₃/SrTiO₃

Chen, Yunzhong ; Trier, Felix ; Christensen, Dennis Valbjørn ; Andersen, Niels Hessel ; Kasama, Takeshi ; Zhang, Wei ; Linderoth, Søren ; Pryds, Nini
Presented at: 2nd Frontiers of Microscopy Virtual Conference

Type: Poster (Peer reviewed)

Status: Published | Year: 2013

A Two-Dimensional Electron Gas at the Spinel/Perovskite Interface of γ-Al₂O₃/SrTiO₃ with Carrier Mobility Exceeding 100,000 cm²V^-1s^-1

Chen, Yunzhong ; Bovet, N. ; Trier, Felix ; Christensen, Dennis Valbjørn ; Qu, F.M. ; Andersen, Niels Hessel ; Kasama, Takeshi ; Zhang, Wei ; Giraud, R. ; Dufouleur, J. ; Jespersen, T. S. ; Sun, J.R. ; Smith, Anders ; Nygård, J. ; Lu, L. ; Büchner, B. ; Shen, B.G. ; Linderoth, Søren ; Pryds, Nini
Presented at: 20th Workshop on Oxide Electronics (WOE20)

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2013

Controlling interfacial states in amorphous/crystalline LaAlO₃/SrTiO₃ heterostructures by electric fields

Christensen, Dennis ; Trier, Felix ; Chen, Yunzhong ; Smith, Anders ; Nygård, J. ; Pryds, Nini
in: Applied Physics Letters, vol: 102, pages: 021602

Type: Journal article (Peer reviewed)

Status: Published | Year: 2013 | DOI: https://doi.org/10.1063/1.4775669

Controlling the conductivity of amorphous LaAlO3/SrTiO3 interfaces by in-situ application of an electric field during fabrication

Trier, Felix ; Amoruso, S. ; Christensen, Dennis Valbjørn ; Sambri, A. ; Chen, Yunzhong ; Wang, X. ; Stamate, Eugen ; Bruzzese, R. ; Pryds, Nini
in: Applied Physics Letters, vol: 103, issue: 3, pages: 031607

Type: Journal article (Peer reviewed)

Status: Published | Year: 2013 | DOI: https://doi.org/10.1063/1.4815989

Degradation of the interfacial conductivity in LaAlO₃/SrTiO₃ heterostructures during storage at controlled environments

Trier, Felix ; Christensen, Dennis ; Chen, Yunzhong ; Smith, Anders ; Andersen, Martin Iglsø ; Pryds, Nini
in: Solid State Ionics, vol: 230, pages: 12-15

Type: Journal article (Peer reviewed)

Status: Published | Year: 2013 | DOI: https://doi.org/10.1016/j.ssi.2012.08.005

Designing CAF-adjuvanted dry powder vaccines: Spray drying preserves the adjuvant activity of CAF01

Ingvarsson, Pall Thor ; Schmidt, Signe Tandrup ; Christensen, Dennis ; Larsen, Niels Bent ; Hinrichs, Wouter Leonardus Joseph ; Andersen, Peter ; Rantanen, Jukka ; Nielsen, Hanne Mørck ; Yang, Mingshi ; Foged, Camilla
in: Journal of Controlled Release, vol: 167, issue: 3, pages: 256-264

Type: Journal article (Peer reviewed)

Status: Published | Year: 2013 | DOI: https://doi.org/10.1016/j.jconrel.2013.01.031

Two-dimensional electron gases at a spinel/perovskite complex oxide heterointerface with electron mobilities exceeding 100,000 cm²V^-1s^-1

Chen, Yunzhong ; Trier, Felix ; Christensen, Dennis Valbjørn ; Linderoth, Søren ; Pryds, Nini
part of: Proceedings for the international conference: "MAMA-Trend: Trends, challenges and emergent new phenomena in multi-functional materials", pages: 77, 2013
Presented at: International conference "MAMA-Trend: Trends, challenges and emergent new phenomena in multi-functional materials"

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published | Year: 2013

Degradation of the performance of microchannel heat exchangers due to flow maldistribution

Nielsen, Kaspar Kirstein ; Engelbrecht, Kurt ; Christensen, Dennis ; Jensen, Jesper Buch ; Smith, Anders ; Bahl, Christian
in: Applied Thermal Engineering, vol: 40, pages: 236-247

Type: Journal article (Peer reviewed)

Status: Published | Year: 2012 | DOI: https://doi.org/10.1016/j.applthermaleng.2012.02.019

Extraordinary high conductivity in SrTiO₃-based oxide heterostructures due to interfacial redox reactions

Chen, Yunzhong ; Christensen, Dennis ; Trier, Felix ; Pryds, Nini ; Linderoth, Søren
Presented at: Frontiers in Electronic Materials: Correlation Effects and Memristive Phenomena

Type: Poster

Status: Published | Year: 2012

Extraordinary high conductivity in SrTiO₃-based oxide heterostructures due to interfacial redox reactions

Chen, Yunzhong ; Christensen, Dennis ; Trier, Felix ; Pryds, Nini ; Linderoth, Søren
Presented at: E-MRS 2012 Spring Meeting

Type: Conference abstract for conference (Peer reviewed)

Status: Published | Year: 2012

On the origin of metallic conductivity at the interface of LaAlO3/SrTiO3

Chen, Yunzhong ; Christensen, Dennis ; Trier, Felix ; Pryds, Nini ; Smith, Anders ; Linderoth, Søren
in: Applied Surface Science, vol: 258, issue: 23, pages: 9242– 9245
Presented at: EMRS 2011 Spring Symposium J: Laser materials processing for micro and nano applications

Type: Conference article (Peer reviewed)

Status: Published | Year: 2012 | DOI: https://doi.org/10.1016/j.apsusc.2012.01.117

Plasma plume effects on the conductivity of amorphous-LaAlO₃/SrTiO₃ interfaces grown by pulsed laser deposition in O₂ and Ar

Sambri, A. ; Christensen, Dennis ; Trier, Felix ; Chen, Yunzhong ; Amoruso, S. ; Pryds, Nini ; Bruzzese, R. ; Wang, X.
in: Applied Physics Letters, vol: 100, pages: 131605

Type: Journal article (Peer reviewed)

Status: Published | Year: 2012 | DOI: https://doi.org/10.1063/1.4727905

Resistance switching of the interfacial conductance in amorphous SrTiO3 heterostructures

Christensen, Dennis ; Trier, Felix ; Chen, Yunzhong ; Smith, Anders ; Pryds, Nini
Presented at: 19th Workshop on Oxide Electronics (WOE 19)

Type: Conference abstract for conference

Status: Published | Year: 2012

The creation of two-dimensional electron gases in SrTiO₃-based complex oxide heterostructures by interface redox reactions

Chen, Yunzhong ; Trier, Felix ; Christensen, Dennis ; Pryds, Nini
part of: Abstract book - Workshop on Oxide Electronics XIX, pages: 66-66, 2012
Presented at: 19th Workshop on Oxide Electronics (WOE 19)

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published | Year: 2012

Demagnetizing effects in stacked rectangular prisms

Christensen, Dennis ; Nielsen, Kaspar Kirstein ; Bahl, Christian Robert Haffenden ; Smith, Anders
in: Journal of Physics D: Applied Physics, vol: 44, issue: 21, pages: 215004

Type: Journal article (Peer reviewed)

Status: Published | Year: 2011 | DOI: https://doi.org/10.1088/0022-3727/44/21/215004

Extraordinarily high conductivity at interfaces of ZrO2:Y2O3/SrTiO3 heterostructures: origin and perspective

Chen, Yunzhong ; Christensen, Dennis ; Trier, F. ; Pryds, Nini ; Smith, Anders ; Linderoth, Søren
Presented at: EMRS 2011 Spring Symposium J: Laser materials processing for micro and nano applications

Type: Poster

Status: Published | Year: 2011

Measuring the effect of demagnetization in stacks of gadolinium plates using the magnetocaloric effect

Lipsø, Hans Kasper Wigh ; Nielsen, Kaspar Kirstein ; Christensen, Dennis ; Bahl, Christian Robert Haffenden ; Engelbrecht, Kurt ; Kuhn, Luise Theil ; Smith, Anders
in: Journal of Magnetism and Magnetic Materials, vol: 323, issue: 23, pages: 3027-3032

Type: Journal article (Peer reviewed)

Status: Published | Year: 2011 | DOI: https://doi.org/10.1016/j.jmmm.2011.06.052

An optimized magnet for magnetic refrigeration

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Christensen, Dennis ; Pryds, Nini
in: Journal of Magnetism and Magnetic Materials, vol: 322, issue: 21, pages: 3324-3328

Type: Journal article (Peer reviewed)

Status: Published | Year: 2010 | DOI: https://doi.org/10.1016/j.jmmm.2010.06.017

Spatially resolved measurements of the magnetocaloric effect and the local magnetic field using thermography

Christensen, Dennis ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Clausen, Sønnik
in: Journal of Applied Physics, vol: 108, issue: 6, pages: 063913

Type: Journal article (Peer reviewed)

Status: Published | Year: 2010 | DOI: https://doi.org/10.1063/1.3487943

The demagnetizing field of a non-uniform rectangular prism

Smith, Anders ; Nielsen, Kaspar Kirstein ; Christensen, Dennis ; Bahl, Christian Robert Haffenden ; Bjørk, Rasmus ; Hattel, Jesper Henri
in: Journal of Applied Physics, vol: 107, issue: 10, pages: 103910

Type: Journal article (Peer reviewed)

Status: Published | Year: 2010 | DOI: https://doi.org/10.1063/1.3385387

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