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Optical spectroscopy study of Ca3(Ru0.91Mn0.09)2O7 single crystal in high magnetic fields

Journal Article · · Science Bulletin
 [1];  [2];  [3];  [4];  [3];  [3];  [5];  [2];  [6];  [7];  [4];  [8]
  1. Chinese Academy of Sciences, Hefei (China); University of Science and Technology of China, Hefei (China); Nanjing University (China); Louisiana State University
  2. Southeast University, Nanjing (China)
  3. Huazhong University of Science and Technology, Wuhan (China)
  4. Chinese Academy of Sciences, Hefei (China)
  5. Chinese Academy of Sciences, Hefei (China); University of Science and Technology of China, Hefei (China)
  6. Nanjing University (China)
  7. Tulane University, New Orleans, LA (United States)
  8. Chinese Academy of Sciences, Hefei (China); Nanjing University (China)
+ Show Author Affiliations
The magneto-optical spectrum, with magnetic fields up to 42 T, of double layered ruthenates Ca3(Ru0.91Mn0.09)2O7 (CRMO) single crystal is studied. Both the temperature and magnetic field induced insulator-to-metal transitions (IMTs) are observed via magneto-optical properties of the crystal. The critical magnetic field (H // c) of IMT for CRMO is found to be as large as 35 T at 5 K. The fine structure of optical spectra identified the antiferromagnetic/ferro-orbital-ordering configurations of Ru 4d orbitals at low temperatures. Meanwhile, the configuration of orbital polarization of such double-layer CRMO single crystal is discussed. Furthermore, these results suggest that the orbital degree of freedom plays an important role in the field induced IMT of multi-orbital system.
Research Organization:
Louisiana State University, Baton Rouge, LA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012432
OSTI ID:
1675378
Alternate ID(s):
OSTI ID: 1611789
Journal Information:
Science Bulletin, Journal Name: Science Bulletin Journal Issue: 1 Vol. 64; ISSN 2095-9273
Publisher:
Elsevier; Science China PressCopyright Statement
Country of Publication:
United States
Language:
English

Figures / Tables (5)

Figure 1(p. 22)figure Figure 1
Figure 2(p. 23)figure Figure 2
Figure 3(p. 24)figure Figure 3
Figure 4(p. 25)figure Figure 4
Figure 5(p. 26)figure Figure 5

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
High magnetic field
Insulator to metal transition
Optical spectroscopy
Ruthenates