Phonon anomalies and magnetic excitations in BaFe2Se2O

被引：4
|
作者：
Jin, Feng [1 ,2 ]
Lazarevic, Nenad [3 ]
Liu, Changle [4 ,5 ]
Ji, Jianting [6 ]
Wang, Yimeng [1 ,2 ]
He, Shuna [1 ,2 ]
Lei, Hechang [1 ,2 ]
Petrovic, Cedomir [7 ]
Yu, Rong [1 ,2 ]
Popovic, Zoran, V [3 ,8 ]
Zhang, Qingming [6 ,9 ]
机构：
[1] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
[2] Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China
[3] Univ Belgrade, Ctr Solid State Phys & New Mat, Inst Phys Belgrade, Pregrevica 118, Belgrade 11080, Serbia
[4] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
[5] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[6] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[7] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA
[8] Serbian Acad Arts & Sci, Knez Mihailova 35, Belgrade 11000, Serbia
[9] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
来源：
PHYSICAL REVIEW B | 2019年 / 99卷 / 14期
基金：
中国国家自然科学基金;
关键词：
RAMAN-SCATTERING; LIGHT-SCATTERING; SPIN LADDERS; BOUND-STATES; S=1/2; SPECTRUM; ORDER;
D O I：
10.1103/PhysRevB.99.144419
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a temperature- and magnetic-field-dependent Raman-scattering study of the spin-ladder compound BaFe2Se2O. Temperature evolution of the B-1g mode self-energies revealed anomalous behavior at about 100 and 240 K with strong temperature-dependent Fano asymmetry. Furthermore, the A(g) modes integrated intensity exhibits an additional change in tendency at about 50 K. All the observed anomalies can be traced back to spin-phonon interaction contributions as well as multiple magnetic phase transitions present in BaFe2Se2O also detected in the Raman continuum induced by the spin fluctuations. Moreover, the absence of magnetic-field dependence of the magnetic mode observed at 436 cm(-1) and the small linewidth and high intensity are different from the magnetic modes at about 650 cm(-1). This suggests a two-magnon continuum and a two-magnon bound state resonance for this mode.
引用
收藏
页数：7
相关论文
共 50 条
  • [31] Multiorbital charge-density wave excitations and concomitant phonon anomalies in Bi2Sr2LaCuO6+δ
    Li, Jiemin
    Nag, Abhishek
    Pelliciari, Jonathan
    Robarts, Hannah
    Walters, Andrew
    Garcia-Fernandez, Mirian
    Eisaki, Hiroshi
    Song, Dongjoon
    Ding, Hong
    Johnston, Steven
    Comin, Riccardo
    Zhou, Ke-Jin
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (28) : 16219 - 16225
  • [32] Nematic response revealed by coherent phonon oscillations in BaFe2As2
    Lee, Min-Cheol
    Kwak, Inho
    Lee, Yeongseon
    Lee, Bumjoo
    Park, Byung Cheol
    Wolf, Thomas
    Noh, Tae Won
    Kim, Kyungwan
    PHYSICAL REVIEW B, 2022, 105 (02)
  • [33] 2-PHONON EXCITATIONS IN AN ANHARMONIC CRYSTAL
    PATHAK, KN
    JINDAL, VK
    LETTERE AL NUOVO CIMENTO, 1974, 10 (10): : 409 - 412
  • [34] Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe2(As1−xPx)2
    Jonathan Pelliciari
    Kenji Ishii
    Yaobo Huang
    Marcus Dantz
    Xingye Lu
    Paul Olalde-Velasco
    Vladimir N. Strocov
    Shigeru Kasahara
    Lingyi Xing
    Xiancheng Wang
    Changqing Jin
    Yuji Matsuda
    Takasada Shibauchi
    Tanmoy Das
    Thorsten Schmitt
    Communications Physics, 2
  • [35] Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe2 (As1-xPx)2
    Pelliciari, Jonathan
    Ishii, Kenji
    Huang, Yaobo
    Dantz, Marcus
    Lu, Xingye
    Olalde-Velasco, Paul
    Strocov, Vladimir N.
    Kasahara, Shigeru
    Xing, Lingyi
    Wang, Xiancheng
    Jin, Changqing
    Matsuda, Yuji
    Shibauchi, Takasada
    Das, Tanmoy
    Schmitt, Thorsten
    COMMUNICATIONS PHYSICS, 2019, 2 (1)
  • [36] STRUCTURE AND MAGNETIC PROPERTIES OF NANOSIZED BaFe2O4 MATERIAL
    Jaafar, Adnan
    Arekat, Safwan
    Al-Saie, Ahmed
    Bououdina, Mohamed
    INTERNATIONAL JOURNAL OF NANOSCIENCE, 2010, 9 (06) : 575 - 577
  • [37] Fluorine insertion into the Ruddlesden-Popper phase La2BaFe2O7: the structure and magnetic properties of La2BaFe2O5F4
    Gurusinghe, Nicola N. M.
    Fones, Julia C.
    Marco, Jose F.
    Berry, Frank J.
    Greaves, Colin
    DALTON TRANSACTIONS, 2014, 43 (05) : 2038 - 2043
  • [38] Electron doping evolution of the anisotropic spin excitations in BaFe2-xNixAs2
    Luo, Huiqian
    Yamani, Zahra
    Chen, Yanchao
    Lu, Xingye
    Wang, Meng
    Li, Shiliang
    Maier, Thomas A.
    Danilkin, Sergey
    Adroja, D. T.
    Dai, Pengcheng
    PHYSICAL REVIEW B, 2012, 86 (02)
  • [39] ANOMALIES OF IMPURITY ABSORPTION IN THE MAGNETIC SEMICONDUCTOR CDCR2SE4
    SAMOKHVALOV, AA
    LOSHKARYOVA, NN
    SUKHORUKOV, YP
    ARBUZOVA, TI
    AUSLENDER, MI
    ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI, 1986, 91 (02): : 621 - 625
  • [40] Phonon anomalies in the infrared conductivity of the RuSr2GdCu2O8 ferromagnetic superconductor
    Boris, AV
    Bernhard, C
    Kovaleva, NN
    Mandal, P
    Loidl, A
    PHYSICA B-CONDENSED MATTER, 2002, 312 : 797 - 799
12345