scholarly journals Constant-adiabaticity ultralow magnetic field manipulations of parahydrogen-induced polarization: application to an AA'X spin system

2021 ◽  
Vol 23 (12) ◽  
pp. 7125-7134
Author(s):  
Bogdan A. Rodin ◽  
James Eills ◽  
Román Picazo-Frutos ◽  
Kirill F. Sheberstov ◽  
Dmitry Budker ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spin System ◽  
Induced Polarization ◽  
Hydrogen Atoms ◽  
Field Sweep ◽  
System P

Magnetic field sweeps are used to transfer parahydrogen-induced polarization from hydrogen atoms onto heteronuclear spins such as carbon-13. In this work we describe and implement constant adiabaticity field sweep profiles for this purpose.

scholarly journals Representation of population exchange at level anti-crossings

2020 ◽  
Author(s):  
Bogdan A. Rodin ◽  
Konstantin L. Ivanov
Keyword(s):  
Magnetic Field ◽  
Spin System ◽  
Evolution Operator ◽  
Singlet State ◽  
Spin Dynamics ◽  
Theoretical Framework ◽  
Induced Polarization ◽  
Cross Polarization ◽  
Population Exchange ◽  
Spin Evolution

Abstract. A theoretical framework is proposed to describe the spin dynamics driven by coherent spin mixing at Level Anti-Crossings (LACs). We briefly introduce the LAC concept and propose to describe the spin dynamics using a vector of populations of the diabatic eigenstates. In this description, each LAC gives rise to a pairwise redistribution of eigenstate populations, allowing one to construct the total evolution operator of the spin system. Additionally, we take into account that in the course of spin evolution a “rotation” of the eigenstate basis case take place. The approach is illustrated by a number of examples, dealing with magnetic field inversion, cross-polarization, singlet-state NMR and parahydrogen induced polarization.

scholarly journals Magnetic-field induced quantum phase transition and critical behavior in a gapped spin system

2007 ◽  
Vol 310 (2) ◽  
pp. 1352-1354 ◽  
Author(s):  
F. Yamada ◽  
T. Ono ◽  
M. Fujisawa ◽  
H. Tanaka ◽  
T. Sakakibara
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Quantum Phase Transition ◽  
Spin System ◽  
Critical Behavior ◽  
Quantum Phase

Ionlzation of fast hydrogen atoms in a strong magnetic field

1965 ◽  
Vol 5 (1) ◽  
pp. 85-86 ◽  
Author(s):  
E. S. Bohovik ◽  
F. I. Busol ◽  
V. A. Kovalenko ◽  
E. U. Skibenko ◽  
V. B. Yuferov
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Hydrogen Atoms

Real-time detection of stimulus response in cultured neurons by high-intensity intermediate-frequency magnetic field exposure

2018 ◽  
Vol 10 (8) ◽  
pp. 442-449 ◽  
Author(s):  
Atsushi Saito ◽  
Tatsuya Terai ◽  
Kei Makino ◽  
Masayuki Takahashi ◽  
Sachiko Yoshie ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Intensity ◽  
Imaging System ◽  
Intermediate Frequency ◽  
Cultured Neurons ◽  
Field Exposure ◽  
Magnetic Field Exposure ◽  
Stimulus Response ◽  
System P ◽  
Frequency Magnetic Field

Stimulus response of cultured neurons during high-intensity intermediate-frequency magnetic field exposure was detected by a non-conductive fibre-optic imaging system.

PULSE-FIELD EXPERIMENTS ON THE SPIN-LATTICE INTERACTION IN LOW-DIMENSIONAL SPIN SYSTEMS

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3369-3372
Author(s):  
B. WOLF ◽  
S. ZHERLITSYN ◽  
S. SCHMIDT ◽  
B. LÜTHI ◽  
M. LANG
Keyword(s):  
Magnetic Field ◽  
Spin System ◽  
Field Experiments ◽  
Resonant Interaction ◽  
Quantum Spin ◽  
Spin Systems ◽  
Pulse Field ◽  
Quantum Spin System ◽  
Magnetic Excitations ◽  
Low Dimensional

Low-dimensional spin systems reveal new and unexpected physical phenomena such as distinct plateaus in the magnetization as a function of magnetic field. In this paper we present ultrasonic measurements for the quasi-two-dimensional spin system SrCu2(BO3)2 in magnetic fields up to 50 T. From this technique we obtained detailed information about the spin state, the magnetic excitations and their interaction with phonons. The dimerized quantum-spin system SrCu2(BO3)2 exhibits plateaus in the magnetization and shows surprisingly strong magneto-elastic effects as a function of temperature and magnetic field. The pronounced elastic anomalies indicate a resonant interaction between the sound wave and the magnetic excitations.

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