TY - JOUR
T1 - Electrical Switching of the Nonreciprocal Directional Microwave Response in a Triplon Bose-Einstein Condensate
AU - Kimura, Shojiro
AU - Matsumoto, Masashige
AU - Tanaka, Hidekazu
N1 - Funding Information:
The authors thank N. Abe, K. Sakurai, and N. Watanabe for their kind help. This work was performed at the High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University (Project No. 19H0406) and was in part supported by the Grant-in-Aid for Scientific Research (Grants No. 17H01142, No. 17H02917, No. 17K05516, No. 19H01834) from MEXT Japan.
Publisher Copyright:
© 2020 American Physical Society.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/5/29
Y1 - 2020/5/29
N2 - We present a microwave electron spin resonance study of the quantum spin dimer system TlCuCl3, which shows the magnetic-field-induced ordering with both antiferromagnetic spin order and ferroelectricity by the Bose-Einstein condensation (BEC) of triplon quasiparticles. Our main achievement is an electrical switching of the nonreciprocal directional microwave response in the triplon BEC phase. High-speed directional control of microwave absorption by applying an electric field has been accomplished in this Letter. The strength of the observed nonreciprocal microwave response well agrees with the calculation based on Kubo theory with the parameters, evaluated from the static electric polarization in this material.
AB - We present a microwave electron spin resonance study of the quantum spin dimer system TlCuCl3, which shows the magnetic-field-induced ordering with both antiferromagnetic spin order and ferroelectricity by the Bose-Einstein condensation (BEC) of triplon quasiparticles. Our main achievement is an electrical switching of the nonreciprocal directional microwave response in the triplon BEC phase. High-speed directional control of microwave absorption by applying an electric field has been accomplished in this Letter. The strength of the observed nonreciprocal microwave response well agrees with the calculation based on Kubo theory with the parameters, evaluated from the static electric polarization in this material.
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U2 - 10.1103/PhysRevLett.124.217401
DO - 10.1103/PhysRevLett.124.217401
M3 - Article
C2 - 32530678
AN - SCOPUS:85085840252
SN - 0031-9007
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 21740117401
ER -