Gapless quantum spin liquid in the S = 1 2 anisotropic kagome antiferromagnet ZnCu3(OH)6SO4

• Published in: New journal of physics Vol. 16; no. 9; pp. 093011 - 93022
• Main Authors: Li, Yuesheng, Pan, Bingying, Li, Shiyan, Tong, Wei, Ling, Langsheng, Yang, Zhaorong, Wang, Junfeng, Chen, Zhongjun, Wu, Zhonghua, Zhang, Qingming
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 2014
• Subjects: Antiferromagnetism; kagome antiferromagnet; low-energy excitation; Physics; quantum spin liquid; spin frustration; Spin liquid; Synchrotron radiation; Temperature; Temperature dependence

We have successfully synthesized the new S = 1 2 anisotropic kagome antiferromagnet ZnCu3(OH)6SO4 and determined its structure by synchrotron x-ray diffraction. No magnetic ordering is observed down to 50 mK, despite a moderately high Weiss temperature of w ∼ −79 K, indicating that the compound is a...