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Title: Spin Seebeck effect in $$\mathrm{Cu_2 OSeO_3}$$: Test of bulk magnon spin current theory

Journal Article · · Physical Review B
 [1];  [2]; ORCiD logo [3];  [4];  [4]; ORCiD logo [5]
  1. Univ. of Miami, Miami, FL (United States); University of Miami Physics Department
  2. Univ. of Miami, Miami, FL (United States); St. Mary's College of Maryland, St. Mary's City, MD (United Staetes)
  3. Johns Hopkins Univ., Baltimore, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  4. Johns Hopkins Univ., Baltimore, MD (United States)
  5. Univ. of Miami, Miami, FL (United States)

In this work, we report measurements of the low-temperature (T ≤ 15K) longitudinal spin Seebeck coefficient (SLSSE) in bulk single crystals of the helimagnetic insulator Cu2OSeO3 with Pt contacts. Simultaneous measurement of both SLSSE and the magnon thermal conductivity (κm) demonstrates their correlation and allows for quantitative and favorable comparison to bulk magnon spin current theory.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Institute for Quantum Matter (IQM); Univ. of Miami, Miami, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0008607
OSTI ID:
1656949
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 10 Vol. 101; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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