"False"
Umeå University
printicon
Main menu hidden.

Bertil Sundqvist

Research qualifications: Docent

Contact

E-mail
bertil.sundqvist@umu.se
Phone
+46 90 786 74 88

Works at

Affiliation
Affiliated as professor emeritus at Department of Physics
Location
Fysikhuset, plan 1, Linnaeus väg 24, - Umeå universitet, 901 87 Umeå
Enhancement of short/medium-range order and thermal conductivity in ultrahard sp3 amorphous carbon by C70 precursor
Nature Communications, Springer Nature 2023, Vol. 14, (1)
Shang, Yuchen; Yao, Mingguang; Liu, Zhaodong; et al.
Doping of charge-transfer molecules in cocrystals for the design of materials with novel piezo-activated luminescence
Chemical Science, Royal Society of Chemistry 2023, Vol. 14, (6) : 1479-1484
Yin, Xiu; Zhai, Chunguang; Hu, Shuhe; et al.
Resistivity saturation in crystalline metals: Semi-classical theory versus experiment
Journal of Physics and Chemistry of Solids, Elsevier 2022, Vol. 165
Sundqvist, Bertil
High pressure and high temperature induced polymerization of C60 solvates: The effect of intercalated aromatic solvents
The Journal of Physical Chemistry C, American Chemical Society (ACS) 2021, Vol. 125, (31) : 17155-17163
Du, Mingrun; Dong, Jiajun; Zhang, Ying; et al.
Ultrahard bulk amorphous carbon from collapsed fullerene
Nature, Nature Publishing Group 2021, Vol. 599, (7886) : 599-604
Shang, Yuchen; Liu, Zhaodong; Dong, Jiajun; et al.
Carbon under pressure
Physics reports, Elsevier 2021, Vol. 909 : 1-73
Sundqvist, Bertil
Correlation between weak localization effects and resistivity saturation in dilute Ti-Al alloys
Physics Letters A, Elsevier 2021, Vol. 400
Sundqvist, Bertil
Anomalous phonon softening of G-band in compressed graphitic carbon nitride due to strong electrostatic repulsion
Applied Physics Letters, American Institute of Physics (AIP) 2021, Vol. 118, (2)
Yang, Zhenxing; Mahmood, Javeed; Niu, Shifeng; et al.
Molecular insertion regulates the donor-acceptor interactions in cocrystals for the design of piezochromic luminescent materials
Nature Communications, Nature Publishing Group 2021, Vol. 12, (1)
Zhai, Chunguang; Yin, Xiu; Niu, Shifeng; et al.
Decompression-Induced Diamond Formation from Graphite Sheared under Pressure
Physical Review Letters, American Physical Society 2020, Vol. 124, (6)
Dong, Jiajun; Yao, Zhen; Yao, Mingguang; et al.
Negative Volume Compressibility in Sc3N@C-80-Cubane Cocrystal with Charge Transfer
Journal of the American Chemical Society, American Chemical Society (ACS) 2020, Vol. 142, (16) : 7584-7590
Zhang, Ying; Yao, Mingguang; Du, Mingrun; et al.
High-temperature superconductivity in sulfur hydride evidenced by alternating-current magnetic susceptibility
National Science Review, Oxford University Press 2019, Vol. 6, (4) : 713-718
Huang, Xiaoli; Wang, Xin; Duan, Defang; et al.
New ordered structure of amorphous carbon clusters induced by fullerene-cubane reactions
Advanced Materials, Wiley-VCH Verlagsgesellschaft 2018, Vol. 30
Du, Mingrun; Yao, Mingguang; Dong, JiaJun; et al.
Instability and thermal conductivity of pressure-densified and elastically altered orientational glass of Buckminsterfullerene
Journal of Chemical Physics, American Institute of Physics (AIP) 2018, Vol. 148, (14)
Johari, G. P.; Andersson, Ove; Sundqvist, Bertil
Saturation and pressure effects on the resistivity of titanium and two Ti-Al alloys
Journal of Physics and Chemistry of Solids, Elsevier 2018, Vol. 122 : 41-50
Sundqvist, Bertil; Tolpygo, Vladimir Kirillovich
Tuning the band gap and the nitrogen content in carbon nitride materials by high temperature treatment at high pressure
Carbon, Elsevier 2018, Vol. 130 : 170-177
Yang, Zhenxing; Hu, Kuo; Meng, Xianwei; et al.
Pressure induced metastable polymerization in doped C60 materials
Carbon, Elsevier 2017, Vol. 115 : 740-745
Cui, Wen; Sun, Shishuai; Sundqvist, Bertil; et al.
High pressure infrared spectroscopy study on C60*CS2 solvates
Chemical Physics Letters, Elsevier 2017, Vol. 669 : 49-53
Du, Mingrun; Zhou, Miao; Yao, Mingguang; et al.
Quasi 3D polymerization in C60 bilayers in a fullerene solvate
Carbon, Elsevier 2017, Vol. 124 : 499-505
Pei, Cuiying; Feng, Meina; Yang, Zhenxing; et al.
Raman identification of C70 monomers and dimers
Diamond and related materials, Elsevier 2017, Vol. 73 : 143-147
Sundqvist, Bertil
Intermolecular bonding in C70 at high pressure and temperature
Carbon, Elsevier 2017, Vol. 125 : 258-268
Sundqvist, Bertil
Novel Superhard sp3 Carbon Allotrope from Cold-Compressed C70 Peapods
Physical Review Letters, American Physical Society 2017, Vol. 118, (24)
Yang, Xigui; Yao, Mingguang; Wu, Xiangying; et al.
Uniaxial-stress-driven transformation in cold compressed glassy carbon
Applied Physics Letters, Melville: American Institute of Physics (AIP) 2017, Vol. 111, (10)
Yao, Mingguang; Fan, Xianhong; Zhang, Weiwei; et al.
Pressure-induced metallization and amorphization in VO2(A) nanorods
Physical Review B. Condensed Matter and Materials Physics, Vol. 93, (18)
Cheng, Benyuan; Li, Quanjun; Zhang, Huafang; et al.
High pressure and high temperature induced polymerization of doped C60 materials
Carbon, Elsevier 2016, Vol. 109 : 269-275
Cui, Wen; Sundqvist, Bertil; Sun, Shishuai; et al.
Photoluminescence changes of C70 nano/submicro-crystals induced by high pressure and high temperature
Scientific Reports, Nature Publishing Group 2016, Vol. 6
Liu, Dedi; Liu, Bingbing; Sundqvist, Bertil; et al.
The low-temperature heat capacity of fullerite C60
Low temperature physics (Woodbury, N.Y., Print), American Institute of Physics (AIP) 2015, Vol. 41, (8) : 630-636
Bagatskii, M.I.; Sumarokov, V.V.; Barabashko, M.S.; et al.
Structural Deformation of Sm@C88under High Pressure
Scientific Reports, Nature Publishing Group 2015, Vol. 5
Cui, Jinxing; Yao, Mingguang; Yang, Hua; et al.
Calorimetric measurements on Li4C60 and Na4C60
Journal of Chemical Physics, American Institute of Physics (AIP) 2015, Vol. 142, (16)
Inaba, Akira; Miyazaki, Yuji; Michalowski, Pawel P.; et al.
AC impedance of A4C60 fullerides under pressure
New Journal of Physics, Institute of Physics (IOP) 2015, Vol. 17, (2)
Sundqvist, Bertil; Andersson, Ove; Gong, Chen; et al.
Polarized Raman study of aligned multiwalled carbon nanotubes arrays under high pressure
The Journal of Physical Chemistry C, American Chemical Society (ACS) 2015, Vol. 119, (49) : 27759-27767
Yang, Xigui; Yao, Mingguang; Lu, Weibang; et al.
Tailoring Building Blocks and Their Boundary Interactionfor the Creation of New, Potentially Superhard, Carbon Materials
Advanced Materials, John Wiley & Sons 2015, Vol. 27, (26) : 3962-3968
Yao, Mingguang; Cui, Wen; Du, Mingrun; et al.
Low-temperature dynamics of matrix isolated methane molecules in fullerite C60: the heat capacity, isotope effects
Low temperature physics (Woodbury, N.Y., Print), American Institute of Physics (AIP) 2014, Vol. 40, (8) : 678-684
Bagatskii, M.I.; Manzhelii, V.G.; Sumarokov, V.V.; et al.
Mapping intermolecular bonding in C60
Scientific Reports, Nature Publishing Group 2014, Vol. 4 : 06171-
Sundqvist, Bertil
Electrical resistance of dysprosium under pressure
Journal of Physics Conference Series, 500
Sundqvist, Bertil; Tolpygo, V. K.
Thermal conductivity of highly crystallized polyethylene
Polymer, Oxford: Elsevier 2014, Vol. 55, (1) : 195-200
Yu, Junchun; Sundqvist, Bertil; Tonpheng, Bounphanh; et al.
Reversible pressure-induced polymerization of Fe(C5H5)(2) doped C-70
Carbon, Pergamon-Elsevier Science 2013, Vol. 62 : 447-454
Cui, Wen; Yao, Mingguang; Yao, Zhen; et al.
Stability of the Tomonaga-Luttinger liquid state in gamma-irradiated carbon nanotube bundles
Journal of Physics: Condensed Matter, Institute of Physics Publishing (IOPP) 2013, Vol. 25, (47) : 475302-
Danilchenko, Boris A.; Tripachko, N. A.; Voitsihovska, E. A.; et al.
Effects of alcohols on shape-tuning and luminescence-enhancing of C70 nanocrystals
Optical materials (Amsterdam), Elsevier 2013, Vol. 36, (2) : 449-454
Liu, Dedi; Cui, Wen; Yao, Mingguang; et al.
Detailed mapping of reaction diagrams for metastable phases
Proceedings of Symposium MM, Materials under extreme environments, Fall Meeting 2012 of the Materials Research Society
Sundqvist, Bertil
Ionic conductivity in three crystalline phases of LiBH4 under pressure
High Pressure Research, Taylor & Francis 2013, Vol. 33, (1) : 141-151
Sundqvist, Bertil; Yao, Mingguang; Andersson, Ove
Pressure-induced transformation and superhard phase in fullerenes: the effect of solvent intercalation
Applied Physics Letters, Vol. 103, (7) : 071913-
Yao, Mingguang; Cui, Wen; Xiao, Junping; et al.
Enormous lattice expansion of hummers graphite oxide in alcohols at low temperatures
ACS Nano, American Chemical Society (ACS) 2013, Vol. 7, (2) : 1395-1399
You, Shujie; Sundqvist, Bertil; Talyzin, Alexandr
Selective Intercalation of Graphite Oxide by Methanol in Water/Methanol Mixtures
The Journal of Physical Chemistry C, American Chemical Society (ACS) 2013, Vol. 117, (4) : 1963-1968
You, Shujie; Yu, Junchun; Sundqvist, Bertil; et al.
Buckminsterfullerene: A Strong, Covalently Bonded, Reinforcing Filler and Reversible Cross-Linker in the Form of Clusters in a Polymer
ACS Macro Letters, American Chemical Society (ACS) 2013, Vol. 2, (6) : 511-517
Yu, Junchun; Yao, Mingguang; Gröbner, Gerhard; et al.
Low-temperature heat capacity of fullerite C-60 doped with deuteromethane
Low temperature physics (Woodbury, N.Y., Print), Melville, NY: American Institute of Physics (AIP) 2012, Vol. 38, (1) : 67-73
Bagatskii, M. I.; Sumarokov, V. V.; Dolbin, Alexander V.; et al.
The specific heat and the radial thermal expansion of bundles of single-walled carbon nanotubes
Low temperature physics (Woodbury, N.Y., Print), American Institute of Physics (AIP) 2012, Vol. 38, (6) : 523-528
Bagatskii, M.I.; Barabashko, M.S.; Dolbin, Alexander V.; et al.
In situ Raman and photoluminescence study on pressure-induced phase transition in C60 nanotubes
Journal of Raman Spectroscopy, Vol. 43, (6) : 737-740
Liu, Dedi; Yao, Mingguang; Li, Quanjun; et al.
Polymerization of C60 under pressure revisited
Extended Abstracts of Carbon 2012, Krakow: Polish Carbon Society 2012 : 608-
Sundqvist, Bertil
Phase transitions in graphite oxide solvates at temperatures near ambient
Journal of Physical Chemistry Letters, American Chemical Society (ACS) 2012, Vol. 3, (7) : 812-817
You, Shujie; Luzan, Serhiy; Yu, Junchun; et al.
View publications in DiVA

Research projects

22 January 2008 until 31 December 2010
Nanocarbon compounds and composites