Raman scattering under extreme conditions<xref rid="cpb_27_7_077801_fn1" ref-type="fn">*</xref><fn id="cpb_27_7_077801_fn1"> <label>*</label><p>Project supported by the Ministry of Science and Technology of China (Grant Nos. 2016YFA0300504 and 2017YFA0302904) and the National Natural Science Foundation of China (Grant Nos. 11474357, 11774419, 11604383, and 11704401). Y. Y. was supported by the Scientific Equipment Development Project of Chinese Academy of Sciences (Grant No. YJKYYQ20170027).</p></fn>

Raman scattering under extreme conditions* *

Project supported by the Ministry of Science and Technology of China (Grant Nos. 2016YFA0300504 and 2017YFA0302904) and the National Natural Science Foundation of China (Grant Nos. 11474357, 11774419, 11604383, and 11704401). Y. Y. was supported by the Scientific Equipment Development Project of Chinese Academy of Sciences (Grant No. YJKYYQ20170027).

Jin Feng¹, Yang Yang², Zhang An-Min¹, Ji Jian-Ting^{1, 2}, Zhang Qing-Ming^{1, 2, 3, †}

(color online) Two-magnon peak positions (a), B_1g phonon frequencies (b), and apical phonon frequencies (c), at low (20 K) and high (300 K) temperatures versus the c-axis lattice density and pressure. The inset of panel (a) shows the derivative of fitting curve (dotted curve). Insets of panels (b) and (c) show the same derivative for phonons. Solid lines in panels (b) and (c) are guides to the eye, following the slope under low pressures. Reprinted with permission from Ref. [9], copyright 2008 by the American Physical Society.