KANG, T D, E C STANDARD, P D ROGERS, K H AHN, A A SIRENKO, Adam DUBROKA, Christian BERNHARD, S. PARK, Y J CHOI a S W CHEONG. Far-infrared spectra of the magnetic exchange resonances and optical phonons and their connection to magnetic and dielectric properties of Dy3Fe5O12 garnet. Physical Review B. Newark: The American Physical Society, 2012, roč. 86, č. 14, s. "144112-1"-"144112-16", 16 s. ISSN 1098-0121. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.86.144112. |
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@article{1121994, author = {Kang, T D and Standard, E C and Rogers, P D and Ahn, K H and Sirenko, A A and Dubroka, Adam and Bernhard, Christian and Park, S. and Choi, Y J and Cheong, S W}, article_location = {Newark}, article_number = {14}, doi = {http://dx.doi.org/10.1103/PhysRevB.86.144112}, keywords = {TERBIUM IRON-GARNET; POLARIZATION; DYSPROSIUM; FIELD}, language = {eng}, issn = {1098-0121}, journal = {Physical Review B}, title = {Far-infrared spectra of the magnetic exchange resonances and optical phonons and their connection to magnetic and dielectric properties of Dy3Fe5O12 garnet}, url = {http://prb.aps.org/abstract/PRB/v86/i14/e144112}, volume = {86}, year = {2012} }
TY - JOUR ID - 1121994 AU - Kang, T D - Standard, E C - Rogers, P D - Ahn, K H - Sirenko, A A - Dubroka, Adam - Bernhard, Christian - Park, S. - Choi, Y J - Cheong, S W PY - 2012 TI - Far-infrared spectra of the magnetic exchange resonances and optical phonons and their connection to magnetic and dielectric properties of Dy3Fe5O12 garnet JF - Physical Review B VL - 86 IS - 14 SP - "144112-1"-"144112-16" EP - "144112-1"-"144112-16" PB - The American Physical Society SN - 10980121 KW - TERBIUM IRON-GARNET KW - POLARIZATION KW - DYSPROSIUM KW - FIELD UR - http://prb.aps.org/abstract/PRB/v86/i14/e144112 L2 - http://prb.aps.org/abstract/PRB/v86/i14/e144112 N2 - Far-infrared spectra of ferrimagnetic Dy3Fe5O12 single crystals have been studied in the spectral range between 12 and 700 cm(-1) and in a wide temperature range between 5 K and 300 K using transmission spectroscopy and rotating analyzer ellipsometry. In the temperature range below T-C = 16 K for the magnetic ordering of Dy3+ spins, a number of ligand field and Kaplan-Kittel (KK) exchange resonance modes have been found. Temperature dependencies of their frequencies allowed us to estimate the ratio between the Fe-Dy and Dy-Dy exchange constants. We found that variation of the oscillator strength of the KK modes correlates with the magnetic-field-induced changes of magnetic permeability. The low-temperature peak in the static value of the dielectric function at T-C = 16 K may be related to the observed temperature-induced variation of the oscillator strength of the optical phonons. ER -
KANG, T D, E C STANDARD, P D ROGERS, K H AHN, A A SIRENKO, Adam DUBROKA, Christian BERNHARD, S. PARK, Y J CHOI a S W CHEONG. Far-infrared spectra of the magnetic exchange resonances and optical phonons and their connection to magnetic and dielectric properties of Dy3Fe5O12 garnet. \textit{Physical Review B}. Newark: The American Physical Society, 2012, roč.~86, č.~14, s.~''144112-1''-''144112-16'', 16 s. ISSN~1098-0121. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.86.144112.
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