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Title: Lattice dynamics and phase transition in CrI 3 single crystals

Journal Article · · Physical Review B
 [1];  [1];  [1];  [1];  [2];  [3]; ORCiD logo [2];  [1];  [4]
  1. Univ. of Belgrade, Belgrade (Serbia)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Walther Meissner Institut, Garching (Germany); Technische Univ. Munchen, Garching (Germany)
  4. Univ. of Belgrade, Belgrade (Serbia); Serbian Academy of Sciences and Arts, Belgrade (Serbia)

Here, the vibrational properties of CrI3 single crystals were investigated using Raman spectroscopy and were analyzed with respect to the changes of the crystal structure. All but one mode are observed for both the low-temperature R¯3 and the high-temperature C2/m phase. For all observed modes the energies and symmetries are in good agreement with DFT calculations. The symmetry of a single layer was identified as p¯31/m. In contrast to previous studies we observe the transition from the R¯3 to the C2/m phase at 180 K and find no evidence for coexistence of both phases over a wide temperature range.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1477483
Report Number(s):
BNL-209162-2018-JAAM; PRBMDO
Journal Information:
Physical Review B, Vol. 98, Issue 10; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 41 works
Citation information provided by
Web of Science

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Reducing Dzyaloshinskii-Moriya interaction and field-free spin-orbit torque switching in synthetic antiferromagnets journal May 2021
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Cited By (9)

Switching 2D magnetic states via pressure tuning of layer stacking journal October 2019
Pressure-controlled interlayer magnetism in atomically thin CrI3 journal October 2019
Electronic structure and magnetic properties of few-layer Cr 2 Ge 2 Te 6 : the key role of nonlocal electron–electron interaction effects journal September 2019
Low-temperature monoclinic layer stacking in atomically thin CrI 3 crystals journal November 2019
Recent progress of spintronics based on emerging 2D materials: CrI 3 and Xenes journal December 2019
Polarization-resolved Raman spectroscopy of α − RuCl 3 and evidence of room-temperature two-dimensional magnetic scattering journal October 2019
Probing magnetism in 2D materials at the nanoscale with single-spin microscopy journal April 2019
Probing magnetism in 2D materials at the nanoscale with single spin microscopy text January 2019
Electronic structure and magnetic properties of few-layer Cr$_2$Ge$_2$Te$_6$: the key role of nonlocal electron-electron interaction effects text January 2019

Figures / Tables (8)


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