Spin wave spectra and spatially modulated structures in BiFeO3
The spin wave spectra of antiferromagnetic BiFeO3-type multiferronics are analyzed theoretically. The presence of a spatially modulated cycloidal antiferromagnetic structure leads to a countable number of frequency branches of two oscillatory modes (Goldstone and activation) for spin waves propagati...
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| Veröffentlicht in: | Low temperature physics (Woodbury, N.Y.) N.Y.), 2014-01, Vol.40 (1), p.58-64 |
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| container_title | Low temperature physics (Woodbury, N.Y.) |
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| creator | Popkov, A. F. Kulagin, N. E. Soloviov, S. V. Gareeva, Z. V. Zvezdin, A. K. |
| description | The spin wave spectra of antiferromagnetic BiFeO3-type multiferronics are analyzed theoretically. The presence of a spatially modulated cycloidal antiferromagnetic structure leads to a countable number of frequency branches of two oscillatory modes (Goldstone and activation) for spin waves propagating along a cycloid. When there is no magnetic field and anisotropy, the magnon spectrum is characterized by the absence of frequency gaps. The spectral features of the spin oscillations with changing anisotropy and application of a magnetic field are identified and the limits on the existence of an antiferromagnetic cycloid are established up to its transformation into a conical structure. In the transverse direction the spin oscillations have a mixed character which indicates that the cycloid is stable with respect to bending throughout its domain of existence. |
| doi_str_mv | 10.1063/1.4862464 |
| format | Article |
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The spectral features of the spin oscillations with changing anisotropy and application of a magnetic field are identified and the limits on the existence of an antiferromagnetic cycloid are established up to its transformation into a conical structure. In the transverse direction the spin oscillations have a mixed character which indicates that the cycloid is stable with respect to bending throughout its domain of existence.</description><subject>Anisotropy</subject><subject>Antiferromagnetism</subject><subject>Bismuth ferrite</subject><subject>Cycloids</subject><subject>Magnetic fields</subject><subject>Magnetism</subject><subject>Magnons</subject><subject>Oscillations</subject><subject>Wave propagation</subject><issn>1063-777X</issn><issn>1090-6517</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kE9Lw0AQxRdRsFYPfoOAJ4XU_ZedzUXQYlUo9KCCt2Wz2UBKmsTdTaXf3i0pehA8zWPmN2-Yh9AlwTOCBbslMy4F5YIfoQnBOU5FRuB4rwVLAeDjFJ15v8aYxGk-QXevfd0mX3prE99bE5xOdFtGrUOtm2aXbLpyaHSwsRfcYMLgrE_iykO9sCt2jk4q3Xh7cahT9L54fJs_p8vV08v8fpkaRiGkRSE1WEJNBbIoNKdGCpETkUvOS50xbA2DwhIrWSWNoXnBsADNKyiJzQ2wKboafXvXfQ7WB7XuBtfGk4oSCpAB5yxS1yNlXOe9s5XqXb3RbqcIVvsEFFGHeCJ7M7Le1CE-27U_8LZzv6Dqy-o_-K_zNxQgcqM</recordid><startdate>201401</startdate><enddate>201401</enddate><creator>Popkov, A. 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The spectral features of the spin oscillations with changing anisotropy and application of a magnetic field are identified and the limits on the existence of an antiferromagnetic cycloid are established up to its transformation into a conical structure. In the transverse direction the spin oscillations have a mixed character which indicates that the cycloid is stable with respect to bending throughout its domain of existence.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4862464</doi><tpages>7</tpages></addata></record> |
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| subjects | Anisotropy Antiferromagnetism Bismuth ferrite Cycloids Magnetic fields Magnetism Magnons Oscillations Wave propagation |
| title | Spin wave spectra and spatially modulated structures in BiFeO3 |
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