Far-infrared spectra of the magnetic exchange resonances and
optical phonons and their connection to magnetic and dielectric
properties of Dy3Fe5O12 garnet

J 2012

Far-infrared spectra of the magnetic exchange resonances and optical phonons and their connection to magnetic and dielectric properties of Dy3Fe5O12 garnet

KANG, T D, E C STANDARD, P D ROGERS, K H AHN, A A SIRENKO et. al.

Basic information

Original name

Far-infrared spectra of the magnetic exchange resonances and optical phonons and their connection to magnetic and dielectric properties of Dy3Fe5O12 garnet

Name in Czech

Vzdáleá infračervená spektroskopie magneticky výměnných rezonancí a optických fononů v Dy3Fe5O12 garnetu

Authors

KANG, T D, E C STANDARD, P D ROGERS, K H AHN, A A SIRENKO, Adam DUBROKA, Christian BERNHARD, S. PARK, Y J CHOI and S W CHEONG

Edition

Physical Review B, Newark, The American Physical Society, 2012, 1098-0121

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 3.767

Organization unit

Central European Institute of Technology

DOI

http://dx.doi.org/10.1103/PhysRevB.86.144112

UT WoS

000309997700002

Keywords in English

TERBIUM IRON-GARNET; POLARIZATION; DYSPROSIUM; FIELD

Abstract

V originále

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.

Citovat

KANG, T D, E C STANDARD, P D ROGERS, K H AHN, A A SIRENKO, Adam DUBROKA, Christian BERNHARD, S. PARK, Y J CHOI and 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, vol. 86, No 14, p. "144112-1"-"144112-16", 16 pp. ISSN 1098-0121. Available from: https://dx.doi.org/10.1103/PhysRevB.86.144112.

@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 and 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, vol.~86, No~14, p.~''144112-1''-''144112-16'', 16 pp. ISSN~1098-0121. Available from: https://dx.doi.org/10.1103/PhysRevB.86.144112.

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