Results 91 to 100 of about 161,231 (277)

Study of one-dimensional nature of (Sr,Ba)_2Cu(PO_4)_2 and BaCuP_2O_7 via 31P NMR

, 2004
The magnetic behavior of the low-dimensional phosphates (Sr,Ba)_2 Cu(PO_4)_2 and BaCuP_2O_7 was investigated by means of magnetic susceptibility and ^{31}P nuclear magnetic resonance (NMR) measurements.
BOBROFF, J, BUTTGEN, N, KEGLER, C, LOIDL, A, MAHAJAN, AV, NATH, R   +5 more
core   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

Advanced Functional Materials, EarlyView.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele, Kristina Hrybenko, Christoph Wölper, Michael Giese   +3 more
wiley   +1 more source

NMR relaxation of quantum spin chains in magnetic fields

, 2006
We investigate NMR relaxation rates 1/T_1 of quantum spin chains in magnetic fields. Universal properties for the divergence behavior of 1/T_1 are obtained in the Tomonaga-Luttinger-liquid state.
K. Izumi, Sei-ichiro Suga, T. Giamarchi, T. Goto, Takahumi Suzuki   +4 more
core   +1 more source

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

Advanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra, Eleonora Ornati, Robert Lehn, Joanna J. Mikolei, Hergen Breitzke, Raheleh Pardehkhorram, Gerd Buntkowsky, Nico Bruns, Annette Andrieu‐Brunsen   +8 more
wiley   +1 more source

Nuclear magnetic resonance relaxometry to characterise the decomposition degree of peat soils

Geoderma
An adequate response to the ecological challenges associated with the traditional peatland management and corresponding site-specific measures require spatial information on soil properties and functions, most of which are related to the degree of peat ...
Stephan Costabel, Claus Florian Stange
doaj   +1 more source

Magnetic and superconducting properties of Cd2Re2O7: Cd NMR and Re NQR

, 2002
We report Cd NMR and Re NQR studies on Cd2Re2O7, the first superconductor among pyrochlore oxides Tc=1 K. Re NQR spectrum at zero magnetic field below 100 K rules out any magnetic or charge order.
A. Abragam, A. Abragam, A. Narath, A. P. Ramirez, C. Urano, D. E. MacLaughlin, D. Mandrus, G. C. Carter, H. Sakai, J. Yamazaki, K. Arai, K. Kobayashi, K. Kodama, L. C. Hebel, M. Hanawa, M. Hanawa, M. Shaham, M. Takigawa, O. Vyaselev, R. Jin, R. Jin, R. Kadono, T. Moriya, Y. Yafet, Y. Yamashita, Z. Hiroi   +25 more
core   +1 more source

Astrocyte‐Guided Maturation of Neural Constructs in a Modular Biosynthetic Hydrogel for Biohybrid Neurotechnologies

Advanced Functional Materials, EarlyView.
A modular biosynthetic PVA–gelatin hydrogel crosslinked via visible‐light thiol‐ene chemistry is engineered as a coating for neural electrodes. Optimizing matrix composition and mechanical properties enables the hydrogel to support astrocytic populations that guide neural differentiation and functional maturation.
Martina Genta, Sofia Peressotti, Roberto Portillo‐Lara, Josef Goding, Rylie Green   +4 more
wiley   +1 more source

NMR relaxation in half-integer antiferromagnetic spin chains

, 1994
Nuclear relaxation in half-integer spin chains at low temperatures (T
A. Sokol, A. Sokol, A. Sokol, A.V. Chubukov, A.V. Chubukov, A.V. Chubukov, A.V. Chubukov, C.H. Pennington, E. Ehrenfreund, G. Baskaran, H.J. Schulz, I. Affleck, I. Affleck, J. Cardy, R. Shankar, R.R.P. Singh, S. Chakravarty, S. Chakravarty, S. Eggert, S. Sachdev, S. Sachdev, Subir Sachdev, T. Imai, T. Imai   +23 more
core   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

Advanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken, K. Ashoke Raman, Alexander Bauer, Violeta Karyofylli, Eva Jodat, André Karl, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source

Spin-lattice relaxation in the mixed state of the high-$T_c$ cuprates: electronic spin-flip scattering versus spin-fluctuations

, 2000
Recent experimental and theoretical studies have established that the spin-lattice relaxation rate, $1/T_1$, measured in nuclear magnetic resonance (NMR) experiments is a site-sensitive probe for the electronic spectrum in the mixed state of the high ...
Morr, Dirk K.
core   +1 more source