NDLI: Dynamical structure factor of magnetic Bloch oscillations at finite temperatures

Content Provider	Springer Nature Link
Author	Syljuåsen, Olav F.
Copyright Year	2015
Abstract	Domain-walls in one-dimensional Ising ferromagnets can undergo Bloch oscillations when subjected to a skew magnetic field. Such oscillations imply finite temperature non-dispersive low-frequency peaks in the dynamical structure factor which can be probed in neutron scattering. We study in detail the spectral weight of these peaks. Using an analytical approach based on an approximate treatment of a gas of spin-cluster excitations we give an explicit expression for the momentum- and temperature-dependence of the spectral weights. Generally the spectral weights increase with temperature T and approaches the same order of magnitude as the spin-wave spectral weights at high temperatures. We compare the analytical expression to numerical exact diagonalizations and find that it can, without any adjustable parameters, account for the T and momentum-transfer dependence of the numerically obtained spectral weights in the parameter regime where the ratio of magnetic fields h x /h z ≪ 1 and the temperature is h x < T < ∼ J z /2. We also carry out numerical calculations pertinent to the material CoNb2O6, and find qualitatively similar results.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF
ISSN	14346028
Journal	The European Physical Journal B
Volume Number	88
Issue Number	10
e-ISSN	14346036
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-10-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Solid State and Materials Condensed Matter Physics Physics Statistical Physics, Dynamical Systems and Complexity Fluid- and Aerodynamics Solid State Physics
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Oscillations of the magnetic polarization in a Kondo system at finite magnetic fields

Magnetization structure of a Bloch point singularity

Quantum correlations in the dimerized spin chain at zero and finite temperatures

Fermi surface instabilities at finite temperature

Theory of magnetic oscillations in Weyl semimetals

Ab initio calculation of intrinsic diffusion coefficients for boron in silicon at finite temperatures

Optical Bloch equations in a bichromatic field; vibrational resonance

Magnetic exchange at realistic CoO/Ni interfaces

Trapped modes in finite quantum waveguides

Dynamical structure factor of magnetic Bloch oscillations at finite temperatures

Similar Documents

Oscillations of the magnetic polarization in a Kondo system at finite magnetic fields

Magnetization structure of a Bloch point singularity

Quantum correlations in the dimerized spin chain at zero and finite temperatures

Fermi surface instabilities at finite temperature

Theory of magnetic oscillations in Weyl semimetals

Ab initio calculation of intrinsic diffusion coefficients for boron in silicon at finite temperatures

Optical Bloch equations in a bichromatic field; vibrational resonance

Magnetic exchange at realistic CoO/Ni interfaces

Trapped modes in finite quantum waveguides

Dynamical structure factor of magnetic Bloch oscillations at finite temperatures